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- Data analysis in HEP and GW experiments
Data analysis in HEP and GW experiments
Through the analysis of data taken in high energy physics experiments we seek to determine the properties of elementary particles and the probabilities of occurrence of natural phenomena only visible at the scale of the attometer (or electroweak scale). We also search for new phenomena such as the production of new particles (predicted or not by a given theory) or anomalous cross sections or distributions. These measurements can also be used to extract or fit fundamental constants within the context of a given theoretical model, thereby providing the experimental inputs required to address phenomenology of elementary particles.
Most of the time, the processes under study are very rare and suffer from large background contaminations that need to be filtered out by sophisticated online trigger systems and through additional criteria applied on stored data. In order to achieve an optimal strategy for the signal selection, the use of specific observables from the basic reconstructed quantities from the detector is mandatory. The quality of these observables relies on the good calibration of the experimental set-up and on the quality of particle identification and reconstruction software. Furthermore this optimization must be realized while keeping a good understanding of the trigger and reconstruction efficiencies and while keeping the level of systematic uncertainties as low as possible.
Analyses strategies are therefore numerous and depend on the goal(s) to be achieved. They range from very simple and robust (e.g., cut-based analyses techniques) to more elaborated selection strategies which make use of kinematic fitting, multivariate analyses (such as artificial neural networks), or the so-called matrix element method.
Members of CP3 have been actively involved in the analysis of data collected by former CHARM II, CHORUS, ALEPH, DELPHI, H1 and ZEUS experiments. Since many years, members of CP3 participate to the analysis of the data collected by the CMS experiment at the LHC. They cover a wide range of physics topics, from top quark and Higgs boson studies to searches for SuperSymmetry and exotic particles. More recently, the analysis of the data collected by the fixed-target NA62 experiment at the SPS has also begun.
Advanced tools for simulation and data analysis of general interest for the HEP community, like DELPHES and MoMEMta, have been developed and are being maintained at CP3, although released as open-source code.
Members
Academic staff
Research scientists
Physicists, engineers and computer scientists
Postdocs
Projects
Click the title to show project description.-
MoMEMta is a C++ software package to compute Matrix Element weights. Designed in a modular way, it covers the needs of experimental analysis workflows at the LHC. MoMEMta provides working examples for the most common final states (<latex>$tt\bar$</latex>, WW, ...). If you are an expert user, be prepared to feel the freedom of configuring your MEM computation at all levels.
MoMEMta is based on:
- C++, ROOT, Lua scripting language
- Cuba (Monte-Carlo integration library)
- External PDFs (LHAPDF by default)
- External Matrix Elements (currently provided by our MadGraph C++ exporter plugin) -
With the 2012 discovery of the Higgs boson at the Large Hadron Collider, LHC, the Standard Model of particle physics has been completed, emerging as a most successful description of matter at the smallest distance scales. But as is always the case, the observation of this particle has also heralded the dawn of a new era in the field: particle physics is now turning to the mysteries posed by the presence of dark matter in the universe, as well as the very existence of the Higgs. The upcoming run of the LHC at 13 TeV will probe possible answers to both issues, providing detailed measurements of the properties of the Higgs and extending significantly the sensitivity to new phenomena.
Since the LHC is the only accelerator currently exploring the energy frontier, it is imperative that the analyses of the collected data use the most powerful possible techniques. In recent years several analyses have utilized multi-variate analysis techniques, obtaining higher sensitivity; yet there is ample room for further improvement. With our program we will import and specialize the most powerful advanced statistical learning techniques to data analyses at the LHC, with the objective of maximizing the chance of new physics discoveries.
We have been part of AMVA4NewPhysics, a network of European institutions whose goal is to foster the development and exploitation of Advanced Multi-Variate Analysis for New Physics searches. The network offered between 2015 and 2019 extensive training in both physics and advanced analysis techniques to graduate students, focusing on providing them with the know-how and the experience to boost their career prospects in and outside academia. The network develops ties with non-academic partners for the creation of interdisciplinary software tools, allowing a successful knowledge transfer in both directions. The network studies innovative techniques and identifies their suitability to problems encountered in searches for new physics at the LHC and detailed studies of the Higgs boson sector. -
Observability of new phenomenological models in High Energy experiments is delicate to evaluate, due to the complexity of the related detectors, DAQ chain and software. Delphes is a new framework for fast simulation of a general purpose experiment. The simulation includes a tracking system, a magnetic field, calorimetry and a muon system, and possible very forward detectors arranged along the beamline. The framework is interfaced to standard file format from event generators and outputs observable analysis data objects. The simulation takes into account the detector resolutions, usual reconstruction algorithms for complex objects (FastJet) and a simplified trigger emulation. Detection of very forward scattered particles relies on the transport in beamlines with the Hector software.
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High-energy photon-photon and photon-proton interactions at the LHC offer interesting possibilities for the study of the electroweak sector up to TeV scale and the search for processes beyond the Standard Model. After in-depth exploratory studies, first measurements of two-photon muon pair production were performed as well as first ever observation of W boson pairs produced by photon fusion. Now unique investigations of quartic couplings between photons and W and Z bosons are being pursued.
Surveying the scientific potential of the new e-ion collider at Brookhaven (EIC) and the future LHeC at CERN. -
The NA62 experiment in the North Area of the CERN SPS is now fully operational and taking data. The plan is to collect the highest statistics ever reached for <latex>$K^+$</latex> decays, of the order of <latex>$10^{13}$</latex> events in the fiducial decay region of the detector until the end of 2018. This high-intensity and high-precision setup makes it possible to probe a number of ultra-rare or forbidden decay channels. Of particular interest to the CP3 group are the LFV/LNV <latex>$K^+ \rightarrow \pi^{+}\mu^{\pm}e^{\mp}$</latex> and <latex>$K^+ \rightarrow \pi^{-}l^+l'^+ (l,l' = e,\mu})$</latex> modes.
Many BSM theories predict some degree of LFV, including Supersymmetry or the introduction of massive neutrinos. Furthermore, there are indirect hints for New Physics in the flavor sector, e.g. in the semileptonic decays of B-mesons. Explanations for the observed discrepancies predict effects of LFV in kaon decays. These particular LFV/LNV <latex>$K \rightarrow \pi ll$</latex> processes which at present are not covered by another experiment provide an attractive opportunity to test the SM. Any observable rate for one of these modes would constitute unambiguous evidence for New Physics. Considering the statistics that will be available at NA62 the current limits on their branching-ratios could be improved by at least one order of magnitude. -
We are among the founders of MODE (Machine-learning Optimized Design of Experiments, https://mode-collaboration.github.io/), a multi-disciplinary consortium of European and American physicists and computer scientists who target the use of differentiable programming in design optimization of detectors for particle physics applications, extending from fundamental research at accelerators, in space, and in nuclear physics and neutrino facilities, to industrial applications employing the technology of radiation detection.
We aim to develop a modular, customizable, and scalable, fully differentiable pipeline for the end-to-end optimization of articulated objective functions that model in full the true goals of experimental particle physics endeavours, to ensure optimal detector performance, analysis potential, and cost-effectiveness.
The main goal of our activities is to develop an architecture that can be adapted to the above use cases but will also be customizable to any other experimental endeavour employing particle detection at its core. We welcome suggestions, as well as interest in joining our effort, by researchers focusing on use cases for which this technology can be of benefit. -
This project aims at optimising neutrino telescopes, especially the IceCube Neutrino Observatory and KM3NeT, to detect GeV and sub-GeV astrophysical neutrinos. The instruments are then used to search for low-energy neutrinos from transient sources, such as solar flares, compact binary mergers, or gamma-ray bursts.
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We take advantage of the large statistics already recorded in Run 2 and being recorded in Run 3 by the CMS experiment to launch a systematic study of cross section, angular asymmetries and other properties in the ttW and ttH processes, which have a potentially large sensitivity to non-SM effects.
In synergy with the CP3 phenomenology group, we aim at reporting our results in a form that can be easily translated in EFT constraints. -
Search for Higgs boson(s) within the Standard Model and beyond and also withing a minimal extension of the scalar sector (2HDM).
The final state under study is a Z decaying into a lepton pair associated with two b-jets. This topology is sensitive to a light SM Higgs via the associate ZH production, as well as a middle mass range SM Higgs boson via the inclusive Higgs production followed by its decay into ZZ with one Z decaying into a lepton pair and the other into bbar.
It is also very sensitive to the production of a non standard heavy Higgs boson decaying into Z plus A (pseudo scalar Higgs boson).
Similar selection (but outside of the Z window) is also sensitive to H->aa->llbb, with "a" a generic light scalar. -
A resonance consistent with the stanadard model Higgs boson with mass of about 125 GeV was discovered in 2012 by the CMS and ATLAS experiments at the LHC. Using the available dataset (2011+2012 LHC runs) evidence was later found of the existence of the SM-predicted decay into a pair of tau leptons. The CP3 Louvain group has been involved in the channel where the Higgs boson is produced in association with the Z boson and decays into a pair of tau leptons.
A search for additional Higgs bosons in the general framework of models with two Higgs doublets (2HDM) was then performed by the same CP3 group using the same final state and the full Run-1 data. Models with two Higgs doublets feature a pseudoscalar boson, A, two charged scalars (H+-) and two neutral (h0 and H0) scalars, one of which is identified with the 125 GeV SM-like Higgs resonance. In some scenarios the most favored decay chain for the discovery of the additional neutral bosons is H0-->ZA-->llττ (or llbb). The search was carried out in collaboration with another group in CP3 who looks at the llbb final state.
An update of both the SM search and the exotic one is expected using the Run-2 dataset using more advanced techniques and by adding the llee and llmumu channels. -
The lack of observed resonances produced at the LHC motivates finding new ways of searching for BSM phenomena. This project aims at discovering possible non-resonant New Physics affecting the production of Top quark pairs, by means of a dedicated analysis of data recorded by the CMS experiment. The New Physics effects are modeled using an effective field theory (EFT), whose parameters are to be measured or constrained in a global fit.
The analysis is conducted in close collaboration with phenomenologists to ensure the approach is theoretically sound and future-proof. -
The discovery of a Higgs boson (H) by the ATLAS and CMS experiments fixes the value of the self-coupling λ in the scalar potential whose form is determined by the symmetries of the Standard Model and the requirement of renormalisability. Higgs boson pair production is sensitive to the self-coupling and will play a major role in investigating the scalar potential structure.
This project consists in a search for nonresonant Higgs boson pair production via gluon fusion in the final state with two leptons, two b jets and missing transvere energy – gg → H(bb) H(WW) asking for the leptonic decay of the W's. The analysis is conducted in close collaboration with phenomenologists to ensure the approach is theoretically sound and future-proof. -
The recent discovery of a scalar boson compatible with the Standard Model (SM) Higgs boson opened new windows to look for physics beyond the SM (BSM). An example of newly accessible phenomenology is the production of resonances decaying into two SM Higgs bosons (h) predicted by several theory families such as additional Higgs singlet/doublet or warped extra dimension.
This project consists in a search for spin-0 or spin-2 resonances produced via gluon fusion in the final state with two leptons, two b-jets and missing transverse energy – gg → X → h(bb) h(WW) asking for the leptonic decay of the W's. In particular, we are probing a mass range between 260 GeV and 900 GeV. -
The electroweak production cross section of single top quarks is an important measurement for LHC, being a potential window on "new physics" effects.
Past achievements of this group include the very first measurement at 7 TeV (in t channel) with 2010 data, followed by the most precise inclusive cross section measurements of t-channel cross section at 7, 8 and 13 TeV, and the first differential measurements at 13 TeV; the most precise |Vtb| extraction from single top in the world; the first measurement of W-helicity fractions in a single-top topology; the first observation of the tW production mode; the first measurement of single-top polarization in t channel; stringent limits on anomalous tWb, tgu, tgc couplings. -
The top quark, being the heaviest known elementary particle, is a powerful tool to test QCD.
The study of top quark pair production in Heavy Ion collisions at the LHC, making use of the dedicated Pb-Pb and p-Pb runs, will open a new road in the investigation of the Quark-Gluon Plasma.
This research project started with the first measurement of top-pair cross section in pp collisions at 5.02 TeV, taking advantage of a "reference run" in Nov.2015. We then update the result with a new publication making use of the larger statistics collected at the end of 2017. This measurement, in addition to being useful as a reference for measurements in Pb-Pb and p-Pb collisions at the same center-of-mass energy per nucleon, also provides a significant broadening of the lever arm for global PDF fits making use of top-quark data.
We then reported the first observation of top quark production in p-Pb collisions, using the data at 8.16 TeV taken in Nov.2016, testing the models of nuclear modification of the gluon PDF at high Bjorken-x. Finally, we provided evidence of top quark production also in Pb-Pb collisions.
We are interested in using future PbPb collision data to probe the time evolution of the QGP using top quarks. -
The stochastic gravitational wave background (SGWB) originates from the superposition of GWs emitted by a large number of
unresolved and uncorrelated sources. Its detection is considered to be one of the ”holy grails” of
GW astronomy, because of its possible cosmological origin and consequently its impact on our
comprehension of the Universe.
The Louvain GW group has been contributing a major effort to the search
for an anisotropic SGWB and the publication of its results. The group is esponsible for one
of the three data analysis algorithms of the LIGO/Virgo/KAGRA (LVK) Collaboration, called broadband radiometer analysis.
Dr J. Suresh has been acting as the anisotropic sub-group chair for the LVK SGWB
group. Not having found any evidence for an SGWB signal, upper limits have been set as a
function of the sky direction.
Millisecond pulsars are one of the potential candidates contributing to the anisotropic stochastic
gravitational-wave background observable in the ground-based gravitational-wave detectors.
We have been contributing to a project aiming to estimate and detect the
stochastic gravitational-wave background produced by millisecond pulsars in the Milky Way.
We have contributed significantly to the published results of a search that looks for
persistent stochastic gravitational-wave sources in all directions of the sky at all frequencies at
which the detectors are sensitive.
Our group has also published a search that is capable of setting constraints on the
ensemble properties of neutron stars, like their average ellipticity, from cross-correlation-based
stochastic gravitational-wave background measurements. -
Asymmetrically rotating neutron stars (NS) are the canonical sources of continuous gravitational
waves, which is the name given to long-duration, almost monochromatic GW signals. There has
been a growing number of other sources of similar signals, which are in general very weak, but
because they are almost monochromatic and of very long duration, they can be integrated over
observation periods lasting up to years and become observable. Sophisticated corrections need to be devised
in order to capture these long and weak signals. These corrections
take into account the deviation from perfect mono-chromaticity of the signal frequency spectrum, which are caused either
by the source dynamics of by the relative movement of the source and the detector.
Our group has been setting up a search for new ultra-light bosons, which could be dark matter (DM) candidates and could accumulate around spinning black holes (BH) via superradiance. In particular, we have been
focusing on the search for vector boson accumulating in known X-ray binaries in our galaxy.
In addition to the movement of the earth, the signal will be modulated by the Doppler effect due to the motion of the source black hole (BH)
around its barycenter.
Our group is also active on studies aiming to detect planetary-mass (10^-7 to 10^-2 M⊙) primordial BHs (PBH) with continuous-wave
methods. The method applies to binary
systems that are still far from the merger and has allowed to constrain the rates and abundance of PBHs in the universe. Limits on the
fraction of DM made of such PBHs (in the galactic halo, in the galactic centre, and in the solar
system vicinity) have also been calculated, for LIGO/Virgo as well as ET.
Ultra-light (10^-13 - 10^-11 eV) bosons could interact with the baryons and leptons in the LIGO/Virgo
mirrors, causing a constant, narrowband signal in the instruments, very similar to a quasi-monochromatic GW.
This project displays synergy between particle physics and GW physics and shows that we can
now directly look for DM candidates with GW instruments. Both short-author list and Collaboration-wide publications have resulted from this project.
Recent Publications
Click the title to show details.-
Z. Daher, M. Lagrange, S. Alvarez, G. C. Strong, F. Bury, T. Dorigo, A. Giammanco, A. Orio, P. Vischia, H. Zaraket, November 25, 2024
Contribution to proceedings. [Full text] -
Oguz Guzel on behalf of the CMS Collaboration, September 2, 2024
Contribution to proceedings. [Full text] -
Morgane Zeoli, Tim J. Kuhlbusch, Robert Joppe, Christophe Collett, Thomas Hebbeker, Joris V. van Heijningen, Achim Stahl, August 6, 2024
Refereed paper. [Full text] -
Oguz Guzel on behalf of the CMS Collaboration, July 3, 2024
Contribution to proceedings. [Local file] [Full text] -
Anzori Georgadze, Andrea Giammanco, Vitaly Kudryavtsev, Maxime Lagrange, Cenk Turkoglu, March 11, 2024
Refereed paper. Contribution to proceedings. [Full text] -
Eugenia Celada,Tao Han, Wolfgang Kilian,Nils Kreher, Yang Ma, Fabio Maltoni, Davide Pagani, Jurgen Reuter, Tobias Striegl, and Keping Xie., December 17, 2023
Refereed paper. [Abstract] [PDF] [Local file] [Journal] [Dial] -
H. K. M. Tanaka, C. Bozza, A. Bross, E. Cantoni, O. Catalano, G. Cerretto, A. Giammanco, J. Gluyas, I. Gnesi, M. Holma, T. Kin, I. Lázaro Roche, G. Leone, Z. Liu, D. Lo Presti, J. Marteau, J. Matsushima, L. Oláh, N. Polukhina, S. S. V. S. Ramakrishna, M. Sellone, A. Hideki Shinohara, S. Steigerwald, K. Sumiya, L. Thompson, V. Tioukov, Y. Yokota & D. Varga, November 23, 2023
Refereed paper. [Full text] -
Ijaz.Ahmed, Anwar Zada, Muhammad Waqas and M. U. Ashraf, November 23, 2023
Refereed paper. [Journal] -
Ijaz Ahmed, Fazal Khaliq, M. U. Ashraf, aimoor Khurshid and Jamil Muhammad, November 23, 2023
Refereed paper. [Journal]
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Max Aehle, Lorenzo Arsini, R. Belén Barreiro, Anastasios Belias, Florian Bury, Susana Cebrian, Alexander Demin, Jennet Dickinson, Julien Donini, Tommaso Dorigo, Michele Doro, Nicolas R. Gauger, Andrea Giammanco, Lindsey Gray, Borja S. González, Verena Kain, Jan Kieseler, Lisa Kusch, Marcus Liwicki, Gernot Maier, Federico Nardi, Fedor Ratnikov, Ryan Roussel, Roberto Ruiz de Austri, Fredrik Sandin, Michael Schenk, Bruno Scarpa, Pedro Silva, Giles C. Strong, Pietro Vischia, October 11, 2023
Refereed paper. [Abstract] [PDF] -
Kruiswijk, Karlijn and de Wasseige, Gwenha\"el, August 25, 2023
Contribution to proceedings. [Abstract] [PDF] [Local file] [Journal] [Full text] -
The IceCube Collaboration, August 24, 2023
Contribution to proceedings. [Abstract] [PDF] [Local file] [Journal] [Full text] -
The IceCube Collaboration, August 24, 2023
Contribution to proceedings. [Abstract] [PDF] [Local file] [Journal] [Full text] -
The IceCube Collaboration, August 24, 2023
Contribution to proceedings. [Abstract] [PDF] [Local file] [Journal] [Full text] -
Lamoureux, Mathieu and de Wasseige, Gwenha\"el, August 23, 2023
Contribution to proceedings. [Abstract] [PDF] [Local file] [Journal] -
Neronov, A. and Semikoz, D. and Aublin, J. and Lamoureux, M. and Kouchner, A., July 31, 2023
Public experimental note. [Abstract] [PDF] [Local file] -
CMS Collaboration (A. Carle, N. Chanon, S. Jain, A. Jung, G. Negro, S. Perries, J. Thieman and others), June 2, 2023
Public experimental note. [Local file] [Full text] -
Sarah Barnes, Anzori Georgadze, Andrea Giammanco, Madis Kiisk, Vitaly A. Kudryavtsev, Maxime Lagrange and Olin Lyod Pinto, March 20, 2023
Refereed paper. [Full text] -
CMS Collaboration, June 7, 2022
Refereed paper. Public experimental note. [Local file] [Full text] -
Pietro Vischia, April 25, 2022
Contribution to proceedings. [Abstract] [PDF] [Local file] -
CMS collaboration, March 22, 2022
Public experimental note. [Full text] -
Angela Taliercio, Paola Mastrapasqua, Claudio Caputo, Pietro Vischia, Nicola De Filippis, Pushpa Bhat, March 21, 2022
Refereed paper. [Abstract] [PDF] [Local file] -
Bury, F. and Tishelman-Charny, A. and Donertas, I.S. and Jain, S. and Guzel, O. and others, March 16, 2022
Public experimental note. [Local file] [Full text] -
Federico De Lillo, Jishnu Suresh, Andrew L. Miller, March 8, 2022
Refereed paper. [Abstract] [PDF] [Local file] [Journal] [Dial] -
Sirunyan, Albert M and others, June 16, 2021
Public experimental note. [Full text] -
MODE collaboration, March 31, 2021
[Full text] -
CMS Collaboration, March 21, 2021
Public experimental note. [Full text] -
CMS Collaboration, August 2, 2020
Public experimental note. [Full text] -
CMS collaboration, July 2, 2020
Public experimental note. [Full text] -
N. Andari (CEA, Saclay, France), L. Apolinário (LIP, Lisbon, Portugal), K. Augsten (Czech Technical University in Prague, Czech Republic), E. Bakos (Institute if Physics Belgrade,Serbia), I. Bellafont (CELLS-ALBA, Cerdanyola del Vallès, Spain), L. Beresford (The University of Oxford, United Kingdom), A. Bethani (Université catholique de Louvain, Louvain-la-Neuve, Belgium), J. Beyer (DESY Hamburg, Germany), L. Bianchini (INFN Sezione di Pisa, Italy), C. Bierlich (Lund University, Sweden), B. Bilin (ULB/IIHE, Brussels, Belgium), K. L. Bjørke (University of Oslo, Norway), E. Bols (Vrije Universiteit Brussel, Brussels, Belgium), P. A. Brás (Laboratory of Instrumentation and Experimental Particle Physics, Lisbon, Portugal), L. Brenner (DESY - Deutsches Elektronen-SYnchrotron, Hamburg, Germany), E. Brondolin (CERN, Geneva, Switzerland), P. Calvo (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain), B. Capdevila (Institut de Física d'Altes Energies, Barcelona, Spain), I. Cioara (Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Bucharest-MG, Romania), L. N. Cojocariu (Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), Bucharest-MG, Romania), F. Collamati (Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Piazzale Aldo Moro 2, Roma, Italy), A. de Wit (DESY,Hamburg, Germany), F. Dordei (Istituto Nazionale di Fisica Nucleare (INFN), sezione di Cagliari, Complesso Universitario di Monserrato Monserrato, Cagliari, Italy), M. Dordevic (VINCA Institute of Nuclear Sciences, University of Belgrade, Serbia), T. A. du Pree (Nikhef, National Institute of Subatomic Physics, Amsterdam, The Netherlands), L. Dufour (CERN, Geneva, Switzerland), A. Dziurda (Institute of Nuclear Physics Polish Academy of Science, Krakow, Poland), U. Einhaus (DESY, Hamburg, Germany), A. A. Elliot (Queen Mary University of London, United Kingdom), S. Esen (Nikhef, Amsterdam, Netherlands), J. Ferradas Troitino (CERN, Geneva, Switzerland), C. Franco (LIP, Lisbon, Portugal), J. García Pardiñas (Universität Zürich, Zürich, Switzerland), A. García Alonso (IFCA, Santander, Spain), A. Ghosh (Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France), G. Gilles (Bergische Universität Wuppertal, Wuppertal, Germany), A. Giribono (INFN - LNF, Frascati, Italy), L. Gouskos (CERN, Geneva, Switzerland), E. Gouveia (LIP, Campus de Gualtar, Braga, Portugal), E. Graverini (École Polytechnique Fédérale de Lausanne (EPFL), Cubotron, Lausanne, Switzerland), J. K. Heikkilä (University of Zurich, Zurich, Switzerland), H. N. Heracleous (CERN, Geneva, Switzerland), T. Herman (Czech Technical University in Prague, Prague, Czech Republic), N. Hermansson-Truedsson (Lund University (Currently at Universität Bern), Lund, Sweden), J. Hrtánková (Nuclear Physics Institute of the Czech Academy of Sciences, Řež, Czech Republic), P. S. Hussain (HEPHY, Wien, Austria), A. Irles (Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France), H. Jansen (DESY, Hamburg, Germany), P. Kalaczynski (NCBJ, Warsaw, Poland), J. Karancsi (Institute for Nuclear Research (ATOMKI), Debrecen, Hungary), P. Kontaxakis (National and Kapodistrian University of Athens, Greece), S. Kostoglou (National Technical University of Athens (NTUA), Greece), A. Koulouris (NTU Athens, Greece), M. Koval (Charles University, Prague, Czech Republic), K. Krizkova Gajdosova (Czech Technical University in Prague, Czech Republic), J. A. Krzysiak (IFJ PAN (Institute of Nuclear Physics, Polish Academy of Sciences), Krakow, Poland), M. Kuich (University of Warsaw, Poland), O. Lantwin (Universität Zürich, Switzerland), F. Lasagni Manghi (INFN Bologna, Italy), L. Lechner (Institute for High Energy Physics, Vienna, Austria), S. Leontsinis (University of Zurich, Switzerland), K. Lieret (Ludwig Maximilan University, Munich, Germany), A. Lobanov (Ecole Polytechnique, Palaiseau, France), J. M. Lorenz (LMU Muenchen, Garching, Germany), G. Luparello (Istituto Nazionale di Fisica Nucleare (INFN), sezione di Trieste, Italy), N. Lurkin (University of Birmingham, United Kingdom), K. H. Mankinen (Lund University, Sweden), E. Manoni (INFN Sezione di Perugia, Italy), L. Mantani (Université catholique de Louvain, Louvain la Neuve, Belgium), R. Marchevski (CERN, Geneva, Switzerland), C. Marin Benito (Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France), A. Mathad (Universität Zürich, Switzerland), J. McFayden (CERN, Geneva, Switzerland), P. Milenovic (University of Belgrade, Serbia), V. Milosevic (Imperial College London, Blackett Laboratory, London, United Kingdom), D. S. Mitzel (CERN, Geneva, Switzerland), Z. Moravcová (Niels Bohr Institute, University of Copenhagen, Denmark), L. Moureaux (ULB, Brussels, Belgium), G. A. Mullier (Lund University, Sweden), M. E. Nelson (Stockholm University and The Oskar Klein Centre for Cosmoparticle Physics, Stockholm, Sweden), J. Ngadiuba (CERN, Geneva, Switzerland), N. Nikiforou (University of Texas at Austin, United States), M. W. OKeefe (University of Liverpool, The Oliver Lodge Laboratory, Liverpool, United Kingdom), R. Pedro (LIP, Lisbon, Portugal), J. Pekkanen (University at Buffalo, Buffalo, United States), M. Queitsch-Maitland (CERN, Geneva, Switzerland), M. P. L. P. Ramos (LIP, Campus de Gualtar, Braga, Portugal), C. Ø. Rasmussen (CERN, Geneva, Switzerland), J. Rembser (CNRS/IN2P3, Institut Polytechnique de Paris, Ecole Polytechnique, Palaiseau, France), E. T. J. Reynolds (University of Birmingham, United Kingdom), M. Sas (Nikhef/Utrecht University, Amsterdam, Netherlands), R. Schöfbeck (HEPHY, Vienna, Austria), M. Schenk (EPFL, Lausanne, Switzerland), P. Schwendimann (Paul Scherrer Institute, Villigen PSI, Switzerland), K. Shchelina (LIP, Lisbon, Portugal), M. Shopova (Institute for Nuclear Research and Nuclear Energy (INRNE) - BAS, Sofia, Bulgaria), S. Sekmen (Kyungpook National University, Daegu, Republic of Korea), S. Spannagel (DESY, Hamburg, Germany), I. A. Sputowska (The Henryk Niewodniczański Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland), R. Staszewski (Institute of Nuclear Physics Polish Academy of Sciences, Cracow, Poland), P. Sznajder (National Centre for Nuclear Research (NCBJ), Warsaw, Poland), A. Takacs (University of Bergen, Bergen, Norway), V. T. Tenorth (Max-Planck-Institut für Kernphysik, Heidelberg, Germany), L. Thomas (ULB, Bruxelles, Belgium), R. Torre (CERN, Geneva, Switzerland), F. Trovato (University of Sussex, Brighton, UK), M. Valente (Université de Genève, Genève, Switzerland), H. Van Haevermaet (University Of Antwerp, Antwerpen, Belgium), J. Vanek (Nuclear Physics Institute, Czech Academy of Sciences, Rez, Czech Republic), M. Verstraeten (Universiteit Antwerpen, Antwerp, Belgium), P. Verwilligen (INFN sezione di Bari, Italy), M. Verzetti (CERN, Geneva, Switzerland), V. Vislavicius (University of Copenhagen, Copenhagen, Denmark), B. Vormwald (University of Hamburg, Hamburg, Germany), E. Vourliotis (National and Kapodistrian University of Athens, Greece), J. Walder (Lancaster University, United Kingdom), C. Wiglesworth (University of Copenhagen, Denmark), S. L. Williams (University of Cambridge, United Kingdom), A. Zaborowska (CERN, Geneva, Switzerland), D. Zanzi (CERN, Geneva, Switzerland), L. Zivkovic (Institute of Physics Belgrade, Serbia), February 27, 2020
[Abstract] [PDF] [Full text] -
CMS collaboration, November 6, 2019
Public experimental note. [Full text] -
Alessia Saggio, Olivier Bondu, Miguel Vidal Marono, Christophe Delaere, Pieter David, Sebastien Wertz, May 29, 2019
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CMS collaboration, May 29, 2019
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CMS Collaboration, December 17, 2018
[Full text] -
CMS Collaboration, July 6, 2018
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CMS Collaboration, July 6, 2018
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CMS Collaboration, March 5, 2018
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CMS Collaboration, March 5, 2018
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Hamed Bakhshiansohi, January 29, 2018
Contribution to proceedings. [Full text] -
Hamed Bakhshiansohi, January 29, 2018
Contribution to proceedings. [Full text] -
Hamed Bakhshiansohi, January 29, 2018
Contribution to proceedings. [Full text] -
O. Bondu, S. Brochet, C. Delaere, M. Delcourt, B. Francois, V. Lemaitre, M. Vidal Marono, S. Wertz, August 21, 2017
Private experimental note. [Full text] -
O. Bondu, S. Brochet, C. Delaere, M. Delcourt, B. François, V. Lemaître, M. Vidal Marono, S. Wertz, August 21, 2017
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CMS Collaboration, June 6, 2017
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CMS collaboration, April 4, 2017
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CMS collaboration, June 16, 2016
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ATLAS and CMS collaborations, May 24, 2016
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CMS collaboration, April 28, 2016
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CMS collaboration, April 28, 2016
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CMS Collaboration, April 27, 2016
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CMS Collaboration, April 22, 2016
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CMS Collaboration, April 22, 2016
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CMS Collaboration, April 22, 2016
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CMS collaboration, March 25, 2016
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CMS Collaboration, March 3, 2016
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CMS Collaboration, December 1, 2015
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CMS Collaboration, December 1, 2015
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CMS collaboration, October 29, 2015
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CMS collaboration, October 3, 2015
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CMS collaboration, September 14, 2015
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CMS collaboration, September 1, 2015
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CMS collaboration, September 1, 2015
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CMS collaboration, July 24, 2015
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C. Delaere, B. Francois, V. Lemaitre, A. Mertens, M. Vidal Marono, December 1, 2014
Private experimental note. [Full text] -
Abideh Jafari and Andrea Giammanco, November 30, 2014
Private experimental note. [Full text] -
R. Castello, A. Caudron, C. Delaere, T.A. du Pree, A. Mertens, November 24, 2014
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CMS Collaboration, September 30, 2014
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CMS Collaboration, July 1, 2014
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CMS Collaboration, July 1, 2014
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CMS Collaboration, July 1, 2014
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CMS Collaboration, July 1, 2014
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E. Boos, V. Bunichev, L. Dudko, N. Tsirova, A. Markina, M. Perfilov, A. Popov, I. Myagkov, I. Shvetsov, G. Vorotnikov, S. Bitioukov, D. Konstantinov, A. Giammanco, J. Hansen, J. Komaragiri, D. Martschei, Th. Muller, J. Ott, T. Peiffer, S. Rocker, J. Wagner-Kuhr, A. O. M. Iorio, M. Merola, L. Lista, A. Jafari, June 12, 2014
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CMS Collaboration, June 9, 2014
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Andrea Giammanco, June 9, 2014
Contribution to proceedings. [Full text] -
Andrea Giammanco, June 9, 2014
Contribution to proceedings. [Full text] -
T. Chwalek, A. Giammanco, M. Kadastik, M. Komm, D. Konstantinov, J. Pata, S. Rocker, A. Tiko, F. Roscher, J. Wagner-Kuhr, June 9, 2014
Private experimental note. [Full text] -
A. Jafari, A. O. Iorio, J. D'Hondt, J. Wagner Kuhr, L. Lista, R. Gonzalez Suarez, A. Giammanco, June 7, 2014
Private experimental note. [Full text] -
A. Anuar, A. Bean, K. Bloom, C. Boeser, T. Chwalek, S. Fink, A. Giammanco, R. Gonzalez Suarez, D. Knowlton, J. Komaragiri, M. Komm, B. Maier, D. Noonan, A. Popov, J. Wagner-Kuhr, June 7, 2014
Private experimental note. [Full text] -
T. Chwalek, A. Giammanco, A. O. M. Iorio, M. Kadastik, M. Komm, D. Konstantinov, J. Pata, M. Piibeleht, A. Popov, L. Rebane, A. Remm, S. Roecker, A. Tiko, F. Roscher, J. Wagner-Kuhr, September 23, 2013
Private experimental note. [Full text] -
CMS Collaboration, September 23, 2013
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The CMS Collaboration, August 26, 2013
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A. Pin V. Lemaitre C. Beluffi J. Vizan , August 26, 2013
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Tristan du Pree (for the CMS Collaboration), August 26, 2013
Contribution to proceedings. [Full text] -
The CMS Collaboration, August 26, 2013
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Tristan du Pree, Roberto Castello, Ludivine Ceard, Anne-Marie Magnan, Andrew Gilbert, Christophe Delaere, Adrien Caudron, Jerome de Favereau, August 26, 2013
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A. Descroix, T. du Pree, P. Van Mulders, G. Van Onsem, J. Vizan, August 26, 2013
Private experimental note. [Full text] -
Wolfgang Adam, J\'er\'emy Andrea, Camille Beluffi, Daniel Bloch, Adrien Caudron, Harry Cheung, Caroline Collard, Thomas Danielson, Alexis Descroix, Tristan du Pree, Juan Pablo Fernandez Ramos, Cristina Ferro, Alex Garabedian, Pablo Goldenzweig, Juan Pablo Gomez Cardona, Rebekka Hoing, Ketino Kaadze, James Keaveney, Dan Knowlton, Patricia Lobelle Pardo, Michael Maes, Sudhir Malik, Ivan Marchesini, Ernesto Migliore, Niklas Mohr, Marco Musich, Meenakshi Narain, Andrea Rizzi, Alexander Schmidt, Luca Scodellaro, Michael Segala, Pedro Silva, Thomas Speer, Alberto Traverso, Pierre Van Hove, Petra Van Mulders, Gerrit Van Onsem, Caterina Vernieri, Jesus Vizan, Roberval Walsh, Jinzhong Zhang, August 26, 2013
Private experimental note. [Full text] -
A.Pin, T. du Pree, R. Castello, J. Vizan C. Beluffi, A. Caudron, C. Delaere, V. Lemaitre, August 26, 2013
Private experimental note. [Full text] -
Tristan du Pree (for the CMS Collaboration), August 26, 2013
Contribution to proceedings. [Full text] -
Wolfgang Adam, J\'er\'emy Andrea, Camille Beluffi, Daniel Bloch, Adrien Caudron, Harry Cheung, Caroline Collard, Thomas Danielson, Alexis Descroix, Tristan du Pree, Alberto Escalante, Dinko Ferencek, Juan Pablo Fernandez Ramos, Cristina Ferro, Alex Garabedian, Pablo Goldenzweig, Juan Pablo Gomez Cardona, Rebekka Hoing, Ketino Kaadze, James Keaveney, Dan Knowlton, Patricia Lobelle Pardo, Michael Maes, Sudhir Malik, Ivan Marchesini, Ernesto Migliore, Niklas Mohr, Marco Musich, Meenakshi Narain, Andrea Rizzi, Alexander Schmidt, Luca Scodellaro, Michael Segala, Pedro Silva, Thomas Speer, Alberto Traverso, Pierre Van Hove, Petra Van Mulders, Gerrit Van Onsem, Caterina Vernieri, Jesus Vizan, Roberval Walsh, Jinzhong Zhang, August 26, 2013
Private experimental note. [Full text] -
CMS Collaboration, May 31, 2013
Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text 1] [Full text 2] -
CMS Collaboration, May 6, 2013
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CMS Collaboration, May 6, 2013
Public experimental note. [Full text] -
CMS Collaboration, May 6, 2013
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CMS Collaboration, March 7, 2013
Public experimental note. [Full text] -
Andrea Giammanco, February 14, 2013
Refereed paper. [Full text] -
Rahmat Rahmat and Andrea Giammanco, September 28, 2012
Contribution to proceedings. [Full text] -
CMS Collaboration, September 28, 2012
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The CMS Collaboration, May 23, 2012
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R. Castello, L. Ceard, C. Delaere, A. Pin, and T.A. du Pree , May 23, 2012
Private experimental note. [Full text] -
S. Podolsky, E. Cortina, N. Lurkin, April 5, 2012
Contribution to proceedings. [Full text] -
The CMS Collaboration, February 9, 2012
Public experimental note. [Full text] -
R. Castello, L. Ceard, C. Delaere, T.A. Du Pree, A. Gilbert, N.Heracleous, A.M. Magnan, February 9, 2012
Private experimental note. [Full text] -
R. Castello, L. Ceard, C. Delaere, T.A. du Pree, A. Gilbert, J. Hauk, N. Heracleous, A.-M. Magnan, E. Migliore, M. Musich, and A. Nikitenko, February 9, 2012
Private experimental note. [Full text] -
Tristan du Pree, Ludivine Ceard, Jerome de Favereau, Christophe Delaere, February 9, 2012
Private experimental note. [Full text] -
CMS collaboration, September 28, 2011
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The CMS Collaboration, June 30, 2011
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The CMS Collaboration, March 11, 2011
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L. Ceard, J. de Favereau, C. Delaere and T. du Pree , March 11, 2011
Private experimental note. [Full text] -
S. Basegmez, G. Bruno, D. Pagano et al., February 9, 2011
Private experimental note. [Full text] -
The CMS Collaboration, February 8, 2011
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A. Giammanco, December 31, 2010
Contribution to proceedings. [Full text] -
J. Caudron, A. Giammanco, A. Pin, V. Lemaitre, December 31, 2010
Private experimental note. [Full text] -
CMS collaboration, December 31, 2010
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P. Azzurri, J. Caudron, D. Dobur, A. Hinzmann, T. Klimkovich, S. Lowette, July 29, 2010
Private experimental note. [Full text] -
J. Caudron, A. Giammanco, A. Hinzmann, T. Klimkovich, P. Azzurri, S. Lowette, D. Dobur, July 29, 2010
Private experimental note. [Full text] -
The CMS Collaboration, July 29, 2010
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Nicolas Schul for the CMS Collaboration, July 1, 2010
Contribution to proceedings. [Full text] -
Luukka, P. and others, February 12, 2010
Refereed paper. [Journal] -
The CMS Collaboration, July 8, 2009
Public experimental note. [Full text] -
J. Caudron, A. Giammanco, V. Lemaitre, July 8, 2009
Private experimental note. [Full text] -
The CMS Collaboration, July 8, 2009
Public experimental note. [Full text] -
A. Giammanco, J. Weinelt, T. Mueller, J. Wagner-Kuhr, P. Sturm, W. Wagner, D. Konstantinov, V. Molchanov, A. Jafari, M. Mohammadi Najafabadi, E. Boos, L. Dudko, A. Markina, July 8, 2009
Private experimental note. [Full text] -
Loic Quertenmont, May 15, 2009
Contribution to proceedings. [Full text] -
Loic Quertenmont & Vincent Roberfroid, April 27, 2009
Public experimental note. [Full text] -
Eduardo Cortina Gil, February 17, 2009
Contribution to proceedings. [Full text] -
Loic Quertenmont, January 27, 2009
Contribution to proceedings. [Full text] -
Loic Quertenmont, Vincent Roberfroid, January 18, 2009
[Full text] -
Maria Hansen et al., December 22, 2008
Private experimental note. [Full text] -
Andrea Giammanco, December 9, 2008
Contribution to proceedings. [Full text] -
The CMS Collaboration, December 9, 2008
Public experimental note. [Full text] -
The CMS Collaboration, December 9, 2008
Public experimental note. [Full text] -
G. Bruno for the ATLAS and CMS Collaborations, December 9, 2008
Contribution to proceedings. [Full text] -
A. Giammanco, November 18, 2008
Public experimental note. [Full text] -
Loic Quertenmont, September 18, 2008
Contribution to proceedings. [Full text] -
X. Rouby, K. Piotrzkowski, July 18, 2008
Private experimental note. [Full text] -
S. Ovyn on behalf of the CMS Collaboration, June 6, 2008
Contribution to proceedings. [Full text] -
S. Ovyn, X. Rouby, J.J. Hollar for the CMS Forward Physics Group, February 28, 2008
Private experimental note. [Full text] -
J.J. Hollar, S. Oyvn, X. Rouby for the CMS collaboration, February 26, 2008
Public experimental note. [Full text] -
Pierzchala Tomasz, December 6, 2007
Contribution to proceedings. [Full text] -
J. Hollar, S. Ovyn, X. Rouby, October 22, 2007
Private experimental note. [Full text] -
Séverine Ovyn, October 15, 2007
Contribution to proceedings. [Full text] -
C.E.Gerber, P.Murat, T.M.P.Tait, D.Wackeroth, A.Arbuzov, D.Bardin, U.Baur, J.A.Benitez, S.Berge, S.Bondarenko, E.E.Boos, M.T.Bowen, R.Brock, V.E.Bunichev, J.Campbell, F.Canelli, Q.-H.Cao, C.M.Carloni Calame, F.Chevallier, P.Christova, C.Ciobanu, S.Dittmaier, L.V.Dudko, S.D.Ellis, A.I.Etienvre, F.Fiedler, A.Garcia-Bellido, A.Giammanco, D.Glenzinski, P.Golonka, C.Hays, S.Jadach, S.Jain, L.Kalinovskaya, M.Kramer, A.Lleres, J.Luck, A.Lucotte, A.Markina, G.Montagna, P.M.Nadolsky, O.Nicrosini, F.I.Olness, W.Placzek, R.Sadykov, V.I.Savrin, R.Schwienhorst, A.V.Sherstnev, S.Slabospitsky, B.Stelzer, M.J.Strassler, Z.Sullivan, F.Tramontano, A.Vicini, W.Wagner, Z.Was, G.Watts, M.Weber, S.Willenbrock, U.K.Yang, C-P.Yuan, J.Zhu, May 24, 2007
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A. Giammanco, A. Perrotta, March 19, 2007
Contribution to proceedings. [Full text] -
Th. Delbar, D. Favart, Gh. Grégoire, S. Kalinin and Chorus collaboration Report, January 5, 2006
Refereed paper. [Journal] -
The CMS Collaboration, February 17, 2006
Public experimental note. [Journal] -
C. Delaere, V. Lemaitre, O. van der Aa, V. Roberfroid, January 28, 2006
Public experimental note. [Full text] -
S. Assouak, J. L. Bonnet, G. Bruno, J. Caudron, B. de Callatay, J. de Favereau de Jeneret, S. de Visscher, C. Delaere, P. Demin, D. Favart, E. Feltrin, E. Forton, G. Grégoire, S. Kalinin, D. Kcira, T. Keutgen, G. Leibenguth, V. Lemaitre, Y. Liu, D. Michotte, O. Militaru, A. Ninane, S. Ovyn, T. Pierzchala, K. Piotrzkowski, V. Roberfroid, X. Rouby, D. Teyssier, O. van der Aa, M. Vander Donckt and CMS Collaboration, December 25, 2006
Refereed paper. [Journal] -
V. Lemaitre (collaboration CMS), March 1, 2006
Refereed paper. [Journal] -
A. Kayis-Topaksu et al. (collaboration CHORUS), October 20, 2005
Refereed paper. [Journal] -
G. Onengut et al. (pour la collaboration Chorus), March 3, 2005
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K. Piotrzkowski and ZEUS Collaboration, October 6, 2005
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K. Piotrzkowski, October 6, 2005
Refereed paper. [Journal] -
K. Piotrzkowski, October 6, 2005
Contribution to proceedings. [Journal] -
Kodolova, Olga and Bruno, G. and Vardanian, I. and Nikitenko, A. and Fano, L., March 22, 2005
Refereed paper. [Journal] -
Arcidiacono R, et al., July 1, 2005
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W. Adam et al. - 404 authors, May 11, 2005
Refereed paper. [Journal] -
CMS Collaboration, June 15, 2005
Public experimental note. [Full text] -
Brauer, R. and others, December 14, 2005
Public experimental note. [Full text] -
S. Schael et al. (ALEPH Collaboration), May 12, 2005
Refereed paper. [Journal] -
S. Schael et al. (ALEPH Collaboration), January 6, 2005
Refereed paper. [Journal]