# CMS Conference Reports

2015-05-26
09:13
 Searching for supersymmetry in compressed scenarios with the CMS experiment / Bainbridge, Robert (Imperial Coll., London) /CMS Collaboration Searches for supersymmetric models with a compressed mass spectrum are presented using data samples collected at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC and corresponding to an integrated luminosity of 19.4$-$19.7~$fb^{-1}$. This class of model is challenging to detect experimentally, primarily due to low-momentum SM particles arising from decay chains involving SUSY particles of comparable mass. [...] CMS-CR-2015-094.- Geneva : CERN, 2015 - 11 p. Fulltext: PDF; In : 50th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 14 - 21 Mar 2015

2015-05-26
09:13
 ATLAS+CMS top mass current results and future measurements / Voutilainen, Mikko (Helsinki U.) /ATLAS and CMS Collaborations The LHC experiments are fast catching up with Tevatron on the accuracy of the top quark mass (mt) measured using standard methods, with the latest CMS combination reaching an accuracy of 0.66 GeV compared to 0.64 GeV for Tevatron. The future prospects look promising as both ATLAS and CMS have commissioned new methods (3D-Rbq, Z+b/Z+jet ratio) to address the leading systematic uncertainty from b-jet energy scale (bJES). [...] CMS-CR-2015-079.- Geneva : CERN, 2015 - 9 p. Fulltext: PDF; In : 50th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 14 - 21 Mar 2015

2015-05-21
17:16
 Other SUSY searches at the LHC (long-lived particles, RPV) / Wulsin, Howard Wells (Ohio State U.) /ATLAS and CMS Collaborations This talk presents the latest results of searches for supersymmetry with long-livedparticles or R-parity violation performed by the ATLAS and CMS collaborations using $\sim$20fb$^{-1}$ of proton-proton collisions at center-of-mass energy of 8 TeV delivered by the LHC.. CMS-CR-2015-067.- Geneva : CERN, 2015 - 7 p. Fulltext: PDF; In : 50th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 21 - 28 Mar 2015

2015-05-18
14:17
 Online data handling and storage at the CMS experiment / Andre, Jean-marc Olivier (Fermilab) ; Andronidis, Anastasios (Ioannina U.) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Demiragli, Zeynep (MIT) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) ; Erhan, Samim (UCLA) ; Gigi, Dominique (CERN) et al. During the LHC Long Shutdown 1, the CMS Data Acquisition (DAQ) system underwent a partial redesign to replace obsolete network equipment, use more homogeneous switching technologies, and support new detector back-end electronics. The software and hardware infrastructure to provide input, execute the High Level Trigger (HLT) algorithms and deal with output data transport and storage has also been redesigned to be completely file- based. [...] CMS-CR-2015-074.- Geneva : CERN, 2015 - 9 p. Fulltext: PDF; In : 21st Conference in High Energy and Nuclear Physics 2015, Okinawa, Japan, 13 - 17 Apr 2015

2015-05-18
14:17
 Scalar Boson CMS Run 1 final results, prospectives for Run 2 (and HL-LHC) / Bendavid, Joshua Lorne (CERN) /CMS Collaboration Results are presented for the main standard model Higgs boson channels from the CMS experiment at the LHC. Results in the $\tau\tau$ and $WW\rightarrow 2\ell 2\nu$ final states constitute standalone evidences, and results in the $H\rightarrow ZZ\rightarrow 4\ell$ and $\gamma \gamma$ final states constitute standalone observations. [...] CMS-CR-2015-068.- Geneva : CERN, 2015 - 8 p. Fulltext: PDF; In : 50th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 14 - 21 Mar 2015

2015-05-18
14:16
 A New Event Builder for CMS Run II / Albertsson, Kim (CERN) ; Andre, Jean-marc Olivier (Fermilab) ; Andronidis, Anastasios (Ioannina U.) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) et al. The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider (LHC) assembles events at a rate of 100kHz, transporting event data at an aggregate throughput of 100GB/s to the high-level trigger (HLT) farm. The DAQ system has been redesigned during the LHC shutdown in 2013/14. [...] CMS-CR-2015-063.- Geneva : CERN, 2015 - 9 p. Fulltext: PDF; In : 21st Conference in High Energy and Nuclear Physics 2015, Okinawa, Japan, 13 - 17 Apr 2015

2015-05-15
13:01
 YSF Dark Matter produced in association with top quark pair / Pinna, Deborah (Zurich U.) /CMS Collaboration LHC Search for Dark Matter produced in association with top quark pair is presented. The search is performed using 19.7 fb-1 of pp collisions recorded at a center of mass energy of 8 TeV with the CMS detector at LHC. [...] CMS-CR-2015-051.- Geneva : CERN, 2015 - 5 p. Fulltext: PDF; In : 50th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 14 - 21 Mar 2015

2015-05-15
13:01
 Studies of Higgs Boson Properties in Future LHC Runs / Xie, Si (Caltech) /ATLAS and CMS Collaborations As the LHC begins its Run 2 period, it will quickly become the first and only Higgs factory in the world. The unique nature of the Higgs boson demands careful and precision studies of its properties. [...] CMS-CR-2015-044.- Geneva : CERN, 2015 - 5 p. Fulltext: PDF; In : 50th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 21 - 28 Mar 2015

2015-05-13
11:45
 Search for Dark Matter at CMS / Daci, Nadir (Vrije U., Brussels) /CMS Collaboration The CMS collaboration searched for Dark Matter (DM) particles produced in pairs in proton-proton (pp) collisions performed by the LHC at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 /fb. The following signatures were investigated a single boosted object and a significant transverse momentum imbalance; associated production of DM with a pair of top quarks; decay of a Higgs boson (H) into a pair of DM particles. [...] CMS-CR-2015-025.- Geneva : CERN, 2015 - 9 p. Fulltext: PDF; In : Kruger2014: The International Workshop on Discovery Physics at the LHC, Skukuza, Mpumulanga, South Africa, 1 - 5 Dec 2014

2015-05-13
11:44
 Searches for weakly produced SUSY at LHC / Folgueras, Santiago (Oviedo U.) /ATLAS and CMS Collaborations A summary of the different searches for weakly produced SUSY by both CMS and ATLAS is presented here. A review on the methodology of these searches, including event selection, background suppression and estimation methods, etc is covered. [...] CMS-CR-2015-041; arXiv:1505.03307.- Geneva : CERN, 2015 - 5 p. Fulltext: PDF; External link: Fulltext In : 50th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 21 - 28 Mar 2015