CMS

Louvain-La-Neuve

CP3 - Research directions and experiments
CMS is designed to see a wide range of particles and phenomena produced in high-energy collisions in the LHC. Like a cylindrical onion, different layers of detector stop and measure the different particles, and use this key data to build up a picture of events at the heart of the collisions.

Projects

Click the title to show project description.
  • 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 are part of a network of European institutions whose goal is to foster the development and exploitation of Advanced Multi-Variate Analysis (AMVA) for New Physics searches. The network offers 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.

  • We take advantage of the large statistics being recorded by the CMS experiment in Run 2 to launch a systematic study of angular asymmetries in the ttW process, 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.

  • The CMS silicon strip tracker is the largest device of its type ever built. There are 24244 single-sided micro-strip sensors covering an active area of 198m2.
    Physics performance of the detector are being constantly assessed and optimized as new data comes.
    Members of UCL are playing a major role in the understanding of the silicon strip tracker and in the maintenance and development of the local reconstruction code.

  • A framework for Fast Simulation of particle interactions in the CMS detector (FastSim) has been developed and implemented in the overall simulation, reconstruction and analysis framework of CMS. It produces data samples in the same format as the one used by the Geant4-based (henceforth Full) Simulation and Reconstruction chain; the output of the Fast Simulation of CMS can therefore be used in the analysis in the same way as data and Full Simulation samples. FastSim is used in several physics analyses in CMS, in particular those requiring a generation of many samples to scan an extended parameter space of the physics model (e.g. SUSY) or for the purpose of estimating systematic uncertainties. It is also used by several groups to design future sub-detectors for the Phase-II CMS upgrades.
    Related activities at UCL include the integration with the Full Simulation in the simulation of the electronic read-out ("digitization") and of the pileup of events from other proton-proton collisions, both in-time and out-of-time; the performance monitoring; and the overall maintenance and upgrade of the tracking-related code. Matthias Komm is current L3 convener of Tracking in FastSim, and Andrea Giammanco has been main responsible of the FastSim project from 2011 to 2013.

  • 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, we performed using the CMS data first measurement of two-photon muon pair production as well as first ever observation of W boson pairs produced by photon fusion. Now our group is leading unique investigations of quartic couplings between photons and W and Z bosons.

  • We contribute to the offline absolute calibration of the luminometry system of the CMS detector, by analysing the dedicated "Van der Meer scan" data at different center-of-mass energies and collision types (p-p, p-Pb, Pb-Pb).

    As a related task, we also contribute to the data-driven inference of the true amount of "pile-up" collisions.

  • The CMS detector at the LHC can be used to identify particles via the measurement of their ionization energy loss. The sub-detectors that have provided so far useful information for this experimental technique are the silicon strip tracker and the pixel detectors. Identification of low momentum hadrons and detection of new exotic massive long-lived charged particles have all benefited from this experimental method. Members of UCL pioneered this technique in the early LHC times and have been developing the tools for its use and calibration. Since 2010 particle identification with ionization energy loss has been the basis of the CMS inclusive search for new massive long-lived charged particles, which has been providing the most stringent and model-independent limits existing to date on any model of new physics predicting such particles.

  • We search for exotic decays of a Higgs boson to a pair of new light bosons, H->a1a1, where one of the light bosons decays to a pair of muons and the other one decays to a pair of b quarks. Such signatures are predicted in a number of well motivated extensions of the standard model, including the next-to-minimal supersymmetry and generic two Higgs doublet models with an additional scalar singlet.

  • 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.

  • Many well motivated new physics extensions of the SM include new particles whose decay width is very small and hence have a decay length which is macroscopic. One very attractive and minimal extension of the standard model is one with right-handed neutrinos with Majorana masses below the electroweak scale (low scale see-saw). This addition is able to generate both the light neutrino masses and the baryon asymmetry of the universe via low scale leptogenesis. In what is probably the most studied model that invokes the low scale seesaw, the Neutrino Minimal Standard Model [2], one of the three right-handed neutrinos is a dark matter candidate. A large allowed region of phase space for right handed neutrinos spans masses between 1 and 50 GeV with corresponding lifetimes (cτ) ranging from 10^3 to 10^-4 m. For higher masses the right handed neutrino basically decays promptly and for lower masses the probability that it decays within the detector volume is virtually zero thus giving rise to missing transverse momentum in the detector. These latter two extreme cases can be captured experimentally by standard searches at the general purpose LHC experiments, while the intermediate case is the natural target of the so-called “displaced” searches, which are highly peculiar and challenging analyses at the LHC in high demand for dedicated data reconstruction tools in order to extend their sensitivity. We intend to search for long-lived sterile neutrinos decaying at displaced vertices into a charged light lepton and hadrons. A fundamental ingredient of this search is the identification of charged tracks emerging from highly displaced vertices.

  • The CMS detector at the LHC is used to search for yet unobserved heavy (mass >100 GeV/c$^2$), long-lived (lifetime > 1 ns), electrically charged particles, called generically HSCPs.
    HSCPs can be distinguished from Standard Model particles by exploiting their unique signature: very high momentum and low velocity. These features are a consequence of their high mass and the relatively limited LHC collision energy. Two experimental techniques are used to identify such hypothetical heavy and low-velocity particles: the measurement of the ionization energy loss rate using the all-silicon tracker detector and the time-of-flight measurement with the muon detectors.

    UCL members have developed the ionization energy loss identification technique and have lead the CMS HSCP search since 2010, when the first HSCP paper became one of the first published LHC search papers. Updated results, using the 2011 dataset, were then published followed by a comprehensive paper including also searches for fractional and multiply-charged particles published using the full CMS Run-1 dataset. The results obtained by analysing the 2015 Run 2 data at 13 TeV have also been published.

    The analysis, which is very inclusive, doesn't find evidence of HSCP. It currently excludes, among various models, the existence of quasi-stable gluinos, predicted by certain realizations of supersymmetry, and Drell-Yan-produced staus with masses lower than about 1.3 TeV and 350 GeV, respectively. These and the other limits set by the analysis are the most stringent to date. The CMS HSCP papers total to date more than 300 citations.

  • 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.

  • We are involved in the activities of the btag POG (performance object group) of CMS, in release and data validation and purity measurement. We are also interested in btagging in special cases like for colinear b-jets. Furthermore, we are involved in the re-optimization and improvement of the Combined Secondary Vertex (CSV) tagger for the 2012 analyses.

  • During 2012, the CMS and ATLAS collaborations independently reported unambiguous evidence of the existence of a new particle of mass around 125 GeV.
    Several analyses are ongoing to challenge the hypothesis that the new particle is the SM Higgs. We focus on the search for its production in association with a single top quark. Due to an effect of quantum interference, this process is strongly suppressed in the Standard Model while it gets enhanced if its couplings to the top quark and to the W boson have opposite sign. An observation of this production mode would therefore be a convincing proof that this new particle does not belong to the Standard Model.
    We published the first search for this process using 8 TeV data, and we expect to achieve sensitivity to anomalous values of the top Yukawa phase during the LHC Run-II.

  • Development of the "phase II" upgrade for the CMS silicon strip stracker.

    More precisely, we are involved in the development of the uTCA-based DAQ system and in the test/validation of the first prototype modules. We take active part to the various test-beam campaigns (CERN, DESY, ...)

    This activity will potentially make use of the cyclotron of UCL, the probe stations and the SYCOC setup (SYstem de mesure de COllection de Charge) to test the response to laser light, radioactive sources and beams.

    The final goal is to take a leading role in the construction of part of the CMS Phase-II tracker.

  • 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. 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.

    More recently we 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.

    We are now preparing future analyses in PbPb collisions. We are also interested in differential analyses in pPb collisions (to constrain nuclear PDFs) and in searches in central exclusive production pp events.

  • The World LHC Computing GRID (WLCG) is the worldwide distributed computing infrastructure controlled by software middleware that allows a seamless usage of shared storage and computing resources.

    About 10 PBytes of data are produced every year by the experiments running at the LHC collider. This data must be processed (iterative and refined calibration and analysis) by a large scientific community that is widely distributed geographically.

    Instead of concentrating all necessary computing resources in a single location, the LHC experiments have decided to set-up a network of computing centres distributed all over the world.

    The overall WLCG computing resources needed by the CMS experiment alone in 2016 amount to about 1500 kHepSpec06 of computing power, 90 PB of disk storage and 150 PB of tape storage. Working in the context of the WLCG translates into seamless access to shared computing and storage resources. End users do not need to know where their applications run. The choice is made by the underlying WLCG software on the basis of availability of resources, demands of the user application (CPU, input and output data,..) and privileges owned by the user.

    Back in 2005 UCL proposed the WLCG Belgian Tier2 project that would involve the 6 Belgian Universities involved in CMS. The Tier2 project consists of contributing to the WLCG by building two computing centres, one at UCL and one at the IIHE (ULB/VUB).

    The UCL site of the WLCG Belgian Tier2 is deployed in a dedicated room close to the cyclotron control room of the IRMP Institute and is currently a fully functional component of the WLCG.

    The UCL Belgian Tier2 project also aims to integrate, bring on the GRID, and share resources with other scientific computing projects. The projects currently integrated in the UCL computing cluster are the following: MadGraph/MadEvent, NA62 and Cosmology.

Recent Publications

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  • Sirunyan, Albert M and others, December 18, 2018
    Refereed paper. [Abstract] [PDF]

  • CMS Collaboration, December 17, 2018
    [Full text]

  • Sirunyan, Albert M and others, November 27, 2018
    Refereed paper. [Abstract] [PDF]

  • CMS Collaboration, July 6, 2018
    Public experimental note. [Full text]

  • CMS Collaboration, July 6, 2018
    Public experimental note. [Full text]

  • CMS Collaboration, June 6, 2018
    Public experimental note. [Full text]

  • CMS Collaboration, March 5, 2018
    Public experimental note. [Full text]

  • CMS Collaboration, March 5, 2018
    Public experimental note. [Full text]

  • Georgios Konstantinos Krintiras (On behalf of the CMS Collaboration), January 29, 2018
    Contribution to proceedings. [Abstract] [PDF]

  • Georgios Konstantinos Krintiras (On behalf of the CMS Collaboration), January 29, 2018
    Contribution to proceedings. [Abstract] [PDF]

  • Georgios Konstantinos Krintiras (On behalf of the CMS Collaboration), January 29, 2018
    Contribution to proceedings. [Abstract] [PDF]

  • Georgios Konstantinos Krintiras (on behalf of the CMS Collaboration), January 29, 2018
    Contribution to proceedings. [Abstract] [PDF]

  • 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]

  • Georgios Konstantinos Krintiras (on behalf of the CMS Collaboration), January 26, 2018
    Contribution to proceedings. [Abstract] [PDF]

  • CMS collaboration, December 13, 2017
    Refereed paper. [Full text]

  • Sirunyan, A. M. and others, November 10, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Sirunyan, Albert M and others, September 22, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • 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
    Private experimental note. [Full text]

  • CMS collaboration, August 21, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • CMS collaboration, August 21, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • CMS Collaboration, June 6, 2017
    Public experimental note. [Full text]

  • CMS collaboration, April 4, 2017
    [Full text]

  • CMS Collaboration, March 26, 2017
    Public experimental note. [Full text]

  • Khachatryan, Vardan and others, January 10, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS Collaboration, December 1, 2016
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS Collaboration, December 1, 2016
    Public experimental note. [Full text]

  • Khachatryan, Vardan and others, October 6, 2016
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Khachatryan, Vardan and others, October 6, 2016
    [Abstract] [PDF] [Journal] [Dial]

  • Khachatryan, Vardan and others, October 6, 2016
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Sirunyan, Albert M and others, October 4, 2016
    Refereed paper. Public experimental note. [Abstract] [PDF] [Journal] [Dial]

  • CMS collaboration, June 16, 2016
    Public experimental note. [Full text]

  • ATLAS and CMS collaborations, May 24, 2016
    Public experimental note. [Full text]

  • CMS collaboration, April 28, 2016
    Public experimental note. [Full text]

  • CMS collaboration, April 28, 2016
    Public experimental note. [Full text]

  • CMS collaboration, April 28, 2016
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • CMS Collaboration, April 27, 2016
    Public experimental note. [Full text]

  • CMS Collaboration, April 22, 2016
    Public experimental note. [Full text]

  • CMS Collaboration, April 22, 2016
    Public experimental note. [Full text]

  • CMS Collaboration, April 22, 2016
    Public experimental note. [Full text]

  • Khachatryan, Vardan and others, April 19, 2016
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS collaboration, March 25, 2016
    Public experimental note. [Full text]

  • CMS Collaboration, March 3, 2016
    Public experimental note. [Full text]

  • CMS Collaboration, December 1, 2015
    Public experimental note. [Full text]

  • CMS Collaboration, December 1, 2015
    Public experimental note. [Full text]

  • Khachatryan, Vardan and others, November 9, 2015
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS collaboration, October 29, 2015
    Public experimental note. [Full text]

  • Khachatryan, Vardan and others, October 20, 2015
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS collaboration, October 3, 2015
    Public experimental note. [Full text]

  • Khachatryan, Vardan and others, September 29, 2015
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS collaboration, September 14, 2015
    Public experimental note. [Full text]

  • CMS collaboration, September 1, 2015
    Public experimental note. [Full text]

  • CMS collaboration, September 1, 2015
    Public experimental note. [Full text]

  • CMS collaboration, July 24, 2015
    Public experimental note. [Full text]

  • Khachatryan, Vardan and others, February 10, 2015
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Matthias Komm on behalf of the CMS collaboration , December 1, 2014
    Contribution to proceedings. [Abstract] [PDF]

  • 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]

  • Abideh Jafari on behalf of the CMS and ATLAS collaborations, November 30, 2014
    Contribution to proceedings. [Abstract] [PDF]

  • Andrey Popov on behalf of the CMS collaboration, November 28, 2014
    Contribution to proceedings. [Abstract] [PDF]

  • Andrey Popov on behalf of the CMS collaboration, November 28, 2014
    Contribution to proceedings. [Abstract] [PDF]

  • R. Castello, A. Caudron, C. Delaere, T.A. du Pree, A. Mertens, November 24, 2014
    Private experimental note. [Full text]

  • Khachatryan, Vardan and others, October 7, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • CMS Collaboration, September 30, 2014
    Public experimental note. [Full text]

  • Roberto Castello on behalf of CMS collaboration, July 4, 2014
    Contribution to proceedings. [Dial] [Full text]

  • Roberto Castello on behalf of CMS collaboration, July 4, 2014
    Contribution to proceedings. [Dial] [Full text]

  • Roberto Castello on behalf of CMS collaboration, July 4, 2014
    Contribution to proceedings. [Dial] [Full text]

  • Roberto Castello on behalf of CMS collaboration, July 4, 2014
    Contribution to proceedings. [Dial] [Full text]

  • Roberto Castello on behalf of CMS collaboration, July 4, 2014
    Contribution to proceedings. [Dial] [Full text]

  • Roberto Castello on behalf of CMS collaboration, July 4, 2014
    Contribution to proceedings. [Dial] [Full text]

  • CMS Collaboration, July 1, 2014
    Public experimental note. [Full text]

  • CMS Collaboration, July 1, 2014
    Public experimental note. [Abstract] [PDF]

  • CMS Collaboration, July 1, 2014
    Public experimental note. [Full text]

  • CMS Collaboration, July 1, 2014
    Public experimental note. [Full text]

  • CMS Collaboration, July 1, 2014
    Public experimental note. [Full text]

  • CMS Collaboration, July 1, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS Collaboration, July 1, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Chatrchyan, Serguei and others, July 1, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Marono, Miguel Vidal, June 19, 2014
    Contribution to proceedings. [Abstract] [PDF] [Dial] [Full text]

  • The CMS collaboration, June 19, 2014
    Refereed paper. [Dial] [Full text]

  • Miguel Vidal Maroño, June 19, 2014
    Contribution to proceedings. [Dial] [Full text]

  • Miguel Vidal Maroño, June 19, 2014
    Contribution to proceedings. [Dial] [Full text]

  • 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
    Private experimental note. [Full text]

  • da Silveira, Gustavo G., June 11, 2014
    Contribution to proceedings. [Abstract] [PDF]

  • da Silveira, Gustavo G., June 11, 2014
    Contribution to proceedings. [Abstract] [PDF]

  • CMS Collaboration, June 9, 2014
    Public experimental note. [Full text]

  • Andrea Giammanco, June 9, 2014
    Contribution to proceedings.

  • 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.

  • Abideh Jafari for the CMS Collaboration, June 7, 2014
    Contribution to proceedings. [Journal] [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]

  • M. Buchkremer, May 4, 2014
    Refereed paper. Contribution to proceedings. [Abstract] [PDF]

  • Barducci, D. and Belyaev, A. and Buchkremer, M. and Cacciapaglia, G. and Deandrea, A. and others, May 4, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Chatrchyan, Serguei and others, February 10, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • Chatrchyan, Serguei and others, January 18, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Forthomme, Laurent, January 8, 2014
    Contribution to proceedings. [Abstract] [PDF]

  • 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
    Public experimental note. [Full text]

  • The CMS Collaboration, August 26, 2013
    Public experimental note. [Full text]

  • A. Pin V. Lemaitre C. Beluffi J. Vizan , August 26, 2013
    Private experimental note. [Full text]

  • Tristan du Pree (for the CMS Collaboration), August 26, 2013
    Contribution to proceedings. [Full text]

  • The CMS Collaboration, August 26, 2013
    Public experimental note. [Full text]

  • Tristan du Pree, Roberto Castello, Ludivine Ceard, Anne-Marie Magnan, Andrew Gilbert, Christophe Delaere, Adrien Caudron, Jerome de Favereau, August 26, 2013
    Private experimental note. [Full text]

  • 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]

  • The CMS Collaboration, August 26, 2013
    Refereed paper. Public experimental note. [Abstract] [PDF] [Journal] [Dial]

  • 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
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS Collaboration, May 6, 2013
    Public experimental note. [Full text]

  • CMS Collaboration, May 6, 2013
    Public experimental note. [Full text]

  • CMS Collaboration, May 6, 2013
    Public experimental note. [Full text]

  • 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
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  • CMS Collaboration, September 28, 2012
    Public experimental note. [Full text]

  • CMS Collaboration, September 28, 2012
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • CMS Collaboration, September 28, 2012
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • M. Buchkremer, A. Schmidt, June 24, 2012
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • The CMS Collaboration, May 23, 2012
    Public experimental note. [Full text]

  • R. Castello, L. Ceard, C. Delaere, A. Pin, and T.A. du Pree , May 23, 2012
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  • Chatrchyan, SergueiProg. Part. Nucl. Phys. and others, April 10, 2012
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  • 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]

  • Giammanco, Andrea, January 24, 2012
    Contribution to proceedings. [Abstract] [PDF]

  • CMS collaboration, September 28, 2011
    Public experimental note. [Full text]

  • The CMS Collaboration, June 30, 2011
    Public experimental note. [Full text]

  • Chatrchyan, Serguei and others, June 16, 2011
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  • The CMS Collaboration, March 11, 2011
    Public experimental note. [Full text]

  • 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
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • The CMS Collaboration, February 8, 2011
    Public experimental note. [Full text]

  • The CMS Collaboration, February 8, 2011
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • J. Caudron for the CMS Collaboration, December 31, 2010
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  • A. Giammanco, December 31, 2010
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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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  • CMS collaboration, December 31, 2010
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  • CMS collaboration, December 21, 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
    Public experimental note. [Full text]

  • Pierre Artoisenet, Vincent Lemaître, Fabio Maltoni, Olivier Mattelaer, July 19, 2010
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Nicolas Schul for the CMS Collaboration, July 1, 2010
    Contribution to proceedings. [Full text]

  • S. Schael and others, June 21, 2010
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Chatrchyan, Serguei and others, February 12, 2010
    [Abstract] [PDF] [Journal] [Dial]

  • Luukka, P. and others, February 12, 2010
    Refereed paper. [Journal]

  • CMS Collaboration, December 26, 2009
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • CMS Collaboration, December 26, 2009
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • CMS Collaboration, December 21, 2009
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  • CMS Collaboration, December 21, 2009
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • CMS Collaboration, December 21, 2009
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  • CMS Tracker Collaboration (W. Adam et al.)., December 21, 2009
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  • W. Adam et al., December 21, 2009
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • De Roeck, A. and others, October 21, 2009
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  • Nicolas Schul, August 6, 2009
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  • The CMS Collaboration, July 8, 2009
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  • J. Caudron, A. Giammanco, V. Lemaitre, July 8, 2009
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  • The CMS Collaboration, July 8, 2009
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  • 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]

  • Loic Quertenmont, January 27, 2009
    Contribution to proceedings. [Full text]

  • Loic Quertenmont, Vincent Roberfroid, January 18, 2009
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  • A.Dierlamm, G.Dirkes, M.Fahrer, M.Frey, F.Hartmann, L.Masetti, O.Militaru, S.Youssaf Shah, R.Stringer, A.Tsirou, December 31, 2008
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  • T. Bergauer, et al., December 22, 2008
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  • Maria Hansen et al., December 22, 2008
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  • The CMS Collaboration, December 11, 2008
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  • The CMS Collaboration, December 10, 2008
    Refereed paper. [Journal] [Full text]

  • J.-L. Bonnet, G. Bruno, B. De Callatay, B. Florins, A. Giammanco, G. Gregoire, Th. Keutgen, D. Kcira, V. Lemaitre, D. Michotte, O. Militaru, K. Piotrzkowski, L. Quertermont, V. Roberfroid, X. Rouby, D. Teyssier et al. (>100 authors), December 10, 2008
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  • S. Assouak, J.-L. Bonnet, G. Bruno, B. de Callatay, S. de Visscher, D. Favart, B. Florins, E. Forton5, A. Giammanco, G. Gregoire, S. Kalinin, D. Kcira, Th. Keutgen, V. Lemaitre, D. Michotte, O. Militaru, S. Ovyn, K. Piotrzkowski, X. Rouby, D. Teyssier, O. Van der Aa et al. (> 100 authors), December 10, 2008
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  • Andrea Giammanco, December 9, 2008
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  • The CMS Collaboration, December 9, 2008
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  • The CMS Collaboration, December 9, 2008
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  • G. Bruno for the ATLAS and CMS Collaborations, December 9, 2008
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  • A. Giammanco, November 18, 2008
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  • S. Ovyn on behalf of the CMS Collaboration, June 6, 2008
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  • Nicolas Schul, Krzysztof Piotrzkowski, June 6, 2008
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  • S. Ovyn, X. Rouby, J.J. Hollar for the CMS Forward Physics Group, February 28, 2008
    Private experimental note. [Full text]

  • J. Hollar, S. Ovyn, X. Rouby, October 22, 2007
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  • The CMS Collaboration, February 17, 2006
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  • 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
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  • G.L. Bayatian et al. (collaboration CMS), February 2, 2006
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  • Adam, W. and others, January 1, 2006
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  • V. Lemaitre (collaboration CMS), March 1, 2006
    Refereed paper. [Journal]

  • P. Demin, S. de Visscher, A. Bocci, R. Ranieri , December 31, 2006
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  • Kodolova, Olga and Bruno, G. and Vardanian, I. and Nikitenko, A. and Fano, L., March 22, 2005
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  • Arcidiacono R, et al., July 1, 2005
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  • W. Adam et al. - 404 authors, May 11, 2005
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  • V. Lemaitre, June 15, 2005
    Public experimental note.

  • V. Lemaitre , June 15, 2005
    Public experimental note.

  • R. Brauer et al. , December 27, 2005
    Public experimental note.

  • Brauer, R. and others, December 14, 2005
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