CERN Preprints

Latest additions:
2014-10-31
14:41
 New Mechanical Concept for Nb3Sn Quadrupole / Karppinen, Mikko (CERN) A new mechanical design concept for the Nb3Sn quadrupoles has been developed with a goal of an accelerator quality magnet that can be industrially produced in large series. [...] CERN-ACC-2014-0244. - 2014. - 18 p. Full text - Full text

2014-10-31
12:25
 Measurement of the inclusive jet cross-section in proton--proton collisions at $\sqrt{s}=7$ TeV using 4.5 $\mbox{fb}^{-1}$ of data with the ATLAS detector The inclusive jet cross-section is measured in proton--proton collisions at a centre-of-mass energy of 7 TeV using a data set corresponding to an integrated luminosity of 4.5 $\mbox{fb}^{-1}$ collected with the ATLAS detector at the Large Hadron Collider in 2011.Jets are identified using the anti - $k_t$ algorithm with radius parameter values of 0.4 and 0.6. [...] CERN-PH-EP-2014-155. - 2014. Fulltext - Previous draft version

2014-10-31
08:50
 Top quark physics results from CMS / Andrea, Jeremy (Strasbourg, IPHC) /CMS Collaboration Recent results on top-quark physics from the CMS collaboration are presented. Among the many measurements performed by CMS, some of the most significant, related to the $t\bar{t}$ and single top production, top-quark mass and top properties measurements, are shown.. CMS-CR-2014-359.- Geneva : CERN, 2014 - 5 p. Fulltext: PDF; In : 20th Particles and Nuclei International Conference, Hamburg, Germany, 24 - 29 Aug 2014

2014-10-31
08:50
 Search for Dark Matter at CMS / Hoepfner, Kerstin (Aachen, Tech. Hochsch.) /CMS Collaboration Dark matter searches at the LHC are complementary to searches in direct detection experiments. In this very recent field of interest at accelerators, several analyses were developed and performed with 2012 data. [...] CMS-CR-2014-357.- Geneva : CERN, 2014 - 6 p. Fulltext: PDF; In : 20th Particles and Nuclei International Conference, Hamburg, Germany, 24 - 29 Aug 2014

2014-10-31
08:50
 Motivation of the CMS Muon System Upgrade with Triple-GEM detectors / Radogna, Raffaella (INFN, Bari ; Bari U.) The CMS collaboration considers upgrading the muon detector in the forward region using a technology of Gas Electron Multiplier (GEM) chambers, which are able to handle the extreme particle rates expected in this region along with a high spatial resolution. This allows to improve tracking and triggering capabilities, resulting in a lower trigger threshold along with redundant muon identification. [...] CMS-CR-2014-349.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF; In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

2014-10-31
08:50
 Large-size triple GEM detectors for the CMS forward muon upgrade / Calabria, Cesare (INFN, Bari ; Bari U.) The CMS collaboration considers upgrading the muon forward region which is particularly affected by the high-luminosity conditions at the LHC. The proposal involves Gas Electron Multiplier (GEM) chambers, which are able to handle the extreme particle rates expected in this region along with a high spatial resolution. [...] CMS-CR-2014-348.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF; In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

2014-10-31
08:49
 Tracking and vertexing algorithms at high pileup / Cerati, Giuseppe Benedetto (UC, San Diego) /CMS Collaboration The challenges of track reconstruction with the CMS detector in a high-occupancy environment are presented. Particular focus is put on developments implemented during the LHC shutdown, targeting a substantial reduction in computing time and fake track rate with no or little efficiency loss. [...] CMS-CR-2014-345.- Geneva : CERN, 2014 - 9 p. Fulltext: PDF; In : VERTEX 2014 - 23rd International Workshop on Vertex Detectors, Doksy, Czech Republic, 15 - 19 Sep 2014

2014-10-31
08:46
 Prospects for Higgs physics with an upgraded CMS detector at the high-luminosity LHC / Zenz, Seth (Imperial Coll., London) /CMS Collaboration A high-luminosity running period is planned for the LHC, in which up to 3000 fb\textsuperscript{-1} of integrated luminosity to be collected, enabling many Higgs properties to be measured at high precision. Projections are given for the expected performance of an upgraded CMS detector for various Higgs property measurements, including modified couplings, rare decays, and spin-parity. [...] CMS-CR-2014-341.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF; In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

2014-10-31
08:46
 CMS muon system towards LHC Run 2 and beyond / Guiducci, Luigi (INFN, Bologna ; Bologna U.) /CMS Collaboration The CMS muon system has played a key role for many physics results obtained from the LHC Run 1 data. The LHC will increase the beam energy as well as progressively increase the peak instantaneous luminosity in Run 2 and in the following years. [...] CMS-CR-2014-333.- Geneva : CERN, 2014 - 10 p. Fulltext: PDF; In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

2014-10-31
08:46
 Resonance search for quark excitation in the gamma + jet final state at CMS / Sharma, Varun (Delhi U.) /CMS Collaboration This poster presents a search for excited quarks (q*) decaying into a $\gamma$ + jet final state at $\sqrt{\rm s}$= 8 TeV with the CMS experiment, using the dataset corresponding to an integrated luminosity of 19.7 $\,\text{fb}^\text{-1}$ collected during 2012 data taking at the LHC. Photons and jets with high transverse momentum are selected to search for a resonance peak in the $\gamma$ + jet invariant mass distribution. [...] CMS-CR-2014-320.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF; In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014