CERN Accelerating science

CMS Conference Reports

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2016-02-01
16:22
Combinations (excl. mass) of top quark measurements at the LHC / Senghi Soares, Mara (Madrid, CIEMAT) /ATLAS and CMS Collaborations
In this contribution we summarize the combinations of the top quark measurements at the LHC. Combinations of the top quark production cross sections measurements, both in pairs and in single final states, and measurements of the top quark properties are presented. The combinations of the top quark mass are presented in other contribution to this conference. These activities are carried out within the LHC Top Working Group at CERN, a forum of discussions where theorists and experimentalists work together to exploit the full potential of top quark physics at the LHC..
CMS-CR-2016-012.- Geneva : CERN, 2016 - 9 p. Fulltext: PDF;
In : 8th International Workshop on Top Quark Physics, Ischia, Italy, 14 - 18 Sep 2015

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2016-01-29
15:04
Differential measurement of top-quark-pair production with additional jet activity \newline in the dilepton channel at CMS / Bartosik, Nazar (INFN, Turin) /CMS Collaboration
Differential measurement of associated ttbar production with additional jets, including b jets, is presented. The measurement is performed in the dilepton decay channels (ee, mumu, emu) using data corresponding to an integrated luminosity of 19.6 fb-1 collected in pp collisions at centre-of-mass energy of 8 TeV with the CMS detector at the LHC.The absolute and normalised differential cross sections for ttbar production are measured as a function of the jet multiplicity for different jet-transverse-momentum thresholds, and as a function of kinematic properties of the leading additional jets. [...]
CMS-CR-2016-014.- Geneva : CERN, 2016 - 8 p. Fulltext: PDF;
In : 8th International Workshop on Top Quark Physics, Ischia, Italy, 14 - 18 Sep 2015

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2016-01-29
15:02
Performance of Tracking, b-tagging and Jet/MET reconstruction at the CMS High Level Trigger / Tosi, Mia (INFN, Padua ; Padua U.) /CMS Collaboration
The trigger systems of the LHC detectors play a crucial role in determining the physics capabilities of experiments. In 2015, the center-of-mass energy of proton-proton collisions will reach 13 TeV up to an unprecedented luminosity of 1e34 cm-2s-1. [...]
CMS-CR-2015-072.- Geneva : CERN, 2015 - 9 p. - Published in : J. Phys.: Conf. Ser. 664 (2015) 082055 Fulltext: PDF;
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.082055

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2016-01-26
16:21
Algorithm and implementation of muon trigger and data transmission system for barrel-endcap overlap region of the CMS detector / Zabolotny, Wojciech (Warsaw U.) ; Byszuk, Adrian Pawel (Warsaw U.) /CMS Collaboration
The CMS experiment is currently undergoing upgrade of its trigger, including the Level-1 muon trigger. In the barrel-endcap transition region it is necessary to merge data from 3 types of detectors - RPC, DT and CSC. [...]
CMS-CR-2015-261.- Geneva : CERN, 2015 - 11 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Lisbon, Portugal, 28 Sep - 2 Oct 2015

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2016-01-26
16:21
Study of high pT particle production from Double Parton Scatterings / Gunnellini, Paolo (DESY) /CMS Collaboration
Various measurements, i.e., W + 2jets, 4 jets, photons + 3jets, WW, are performed to study the high pT/mass particle production from double parton scatterings. This talk will summarizes results from different DPS measurements..
CMS-CR-2016-013.- Geneva : CERN, 2016 - 5 p. Fulltext: PDF;
In : 7th International Workshop on Multiple Partonic Interactions at the LHC, Miramare, Trieste, Italy, 23 - 27 Nov 2015

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2016-01-21
10:30
Searches for direct production of dark matter \\ at the LHC / Karapostoli, Georgia (Brussels U.) /ATLAS and CMS Collaborations
This article reports on searches for new phenomena through direct production of dark matter (DM) particles at the LHC. Searches for DM made public by Summer 2015 by the CMS and ATLAS collaborations, are presented and categorized according to the event topology characteristics. [...]
CMS-CR-2016-009.- Geneva : CERN, 2016 - 7 p. Fulltext: PDF;
In : 3rd Annual Large Hadron Collider Physics Conference, St. Petersburg, Russia, 31 Aug - 5 Sep 2015

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2016-01-21
10:27
ATLAS/CMS b-hadron production / Wang, Zheng (Beijing, Inst. High Energy Phys.) /ATLAS and CMS Collaborations
The ATLAS and CMS analyses of B productions at $\sqrt{s}~=~7$ TeV and 8 TeV are summarized. The production cross section measurements include inclusive b production and exclusive production measurements of $\Upsilon$(1S, 2S, 3S), $B^+$, $B^0$, $B^0_s$, $B^\pm_c$, $\Lambda_b$. The ATLAS and CMS search results of new b-quark states with RUN-I data are also introduced. Observation of the rare $B^0_s\rightarrow\mu^+\mu^-$ decay from CMS and combined result of CMS and LHCb data are presented..
CMS-CR-2015-320.- Geneva : CERN, 2015 - 14 p. Fulltext: PDF;
In : 3rd Annual Large Hadron Collider Physics Conference, St. Petersburg, Russia, 31 Aug - 5 Sep 2015

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2016-01-19
11:19
Higgs to tautau channels with CMS / Androsov, Konstantin (INFN, Pisa) /CMS Collaboration
A brief overview of the searches for a neutral Higgs boson using $\tau\tau$ decay channels with events recorded by the CMS experiment in 2011 and 2012 is given. It includes three searches, using similar analysis techniques: the searches for the standard model Higgs boson and the MSSM Higgs boson decaying to a pair of $\tau$, and the search for a neutral scalar heavy Higgs H decaying to a pair of 125 GeV Higgs bosons in the final state $bb\tau\tau$..
CMS-CR-2016-010.- Geneva : CERN, 2016 - 5 p. Fulltext: PDF;
In : 17th Lomonosov Conference on Elementary Particle Physics, Moscow, Russia, 20 - 26 Aug 2015

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2016-01-18
16:31
ATLAS+CMS Production of heavy vector boson pairs (WW, WZ, ZZ) / Bellan, Riccardo (INFN, Turin ; Turin U.) /ATLAS and CMS Collaborations
This article summarises the status of the analysis of heavy vector boson pairs production at $\sqrt{s} = 8$~TeV made by the ATLAS and CMS collaborations. The production of the WW, WZ and ZZ pairs in several decay modes is reported together with limits on anomalous triple gauge couplings,as presented at the LHCP 2015 conference..
CMS-CR-2015-372.- Geneva : CERN, 2015 - 7 p. Fulltext: PDF;
In : 3rd Annual Large Hadron Collider Physics Conference, St. Petersburg, Russia, 31 Aug - 5 Sep 2015

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2016-01-15
15:28
Studies on longitudinal fluctuations of anisotropy flow event planes in PbPb and pPb collisions at CMS / Guilbaud, Maxime (Rice U.) /CMS Collaboration
Most studies of anisotropy flow phenomena have assumed a global flow phase angle (or event plane angle) that is boost invariant in pseudorapidity ($\eta$). It was realized in recent years that this assumption may not be valid in presence of initial-state fluctuations, especially along the longitudinal direction. [...]
CMS-CR-2016-011.- Geneva : CERN, 2016 - 5 p. Fulltext: PDF;
In : 25th International Conference on Ultra-relativistic Nucleus-nucleus Collisions, Kobe, Jpn, 27 Sep - 4 Oct 2015

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