CERN Preprints

Nyeste elementer:
2018-09-17
11:10
 Experimental results using the decay of the Higgs to taus and muons / Meyer, Mareike (DESY) /ATLAS and CMS Collaborations Precise measurements of the Higgs boson Yukawa couplings provide important tests of the Standard Model of particle physics. This review summarizes the current status of the analyses performed by the ATLAS and CMS experiments that search for the Higgs boson decay into a pair of muons. [...] CMS-CR-2018-165.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF; In : Sixth Annual Conference on Large Hadron Collider Physics, Bologna, Italy, 4 - 9 Jun 2018

2018-09-17
11:09
 SEARCHES FOR DARK MATTER PARTICLES AT THE LHC / Felcini, Marta (University Coll., Dublin) /ATLAS ,CMS and SUSY Collaborations The searches for new particles that could be constituents of the dark matter in the universe are an essential part of the physics program of the experiments at the Large Hadron Collider. An overview of recent dark matter candidate searches is presented with a focus on new results obtained by the ATLAS and CMS experiments from the analysis of the proton-proton collision data at 13 TeV center-of-mass energy collected in the first part of Run 2.. CMS-CR-2018-176.- Geneva : CERN, 2018 - 11 p. Fulltext: PDF; In : 53rd Rencontres de Moriond on Cosmology, La Thuile, Italy, 17 - 24 Mar 2018

2018-09-15
04:46
 Monitoring radiation damage in the LHCb Tracker Turicensis / Abellan Beteta, C. ; Atzeni, M. ; Battista, V. ; Bursche, A. ; Dey, B. ; Dosil Suarez, A. ; Elsasser, C. ; Fernandez Prieto, A. ; Fu, J. ; Graverini, E. et al. This paper presents the techniques used to monitor radiation damage in the LHCb Tracker Turicensis from 2011 to 2017. [...] arXiv:1809.05063 ; CERN-LHCb-DP-2018-003. - 17 p. Fulltext

2018-09-15
04:46
 New Results on Hard Probes in Heavy-Ion Collisions with ALICE / Klein-Bösing, Christian Hard probes - final state particles related to an interaction with large momentum transfer or mass scale - play a distinguished role in the discovery and the study of the Quark-Gluon Plasma (QGP), a phase of deconfined quarks and gluons reached at high temperatures in heavy ion collisions. [...] arXiv:1809.04936. - 6 p. Fulltext

2018-09-15
04:46
 Calculation of the Z+jet cross section including transverse momenta of initial partons / Deak, M. ; van Hameren, A. ; Jung, H. ; Kusina, A. ; Kutak, K. ; Serino, M. We perform calculations of Z+jet cross-section taking into account the transverse momenta of the initial partons. [...] arXiv:1809.03854 ; DESY 18-159 ; IFJPAN-IV-2018-16 ; CERN-TH-2018-204. - 16 p. Fulltext

2018-09-15
04:46
 Beam test results of 3D fine-grained scintillator detector prototype for a T2K ND280 neutrino active target / Mineev, O. (Moscow, INR) ; Blondel, A. (Geneva U.) ; Favre, Y. (Geneva U.) ; Fedotov, S. (Moscow, INR) ; Khotjantsev, A. (Moscow, INR) ; Korzenev, A. (Geneva U.) ; Kudenko, Yu (Moscow, INR ; Moscow Phys. Eng. Inst. ; Moscow, MIPT) ; Mefodiev, A. (Moscow, INR) ; Noah, E. (Geneva U.) ; Sgalaberna, D. (Geneva U. ; CERN) et al. An upgrade of the long baseline neutrino experiment T2K near detector ND280 is currently being developed with the goal to reduce systematic uncertainties in the prediction of number of events at the far detector Super-Kamiokande. [...] arXiv:1808.08829. - 5 p. Fulltext

2018-09-15
04:46
 Cosmic test of sTGC detector prototype made in China for ATLAS experiment upgrade / Zhao, Xiao (Shandong U.) ; Zhang, Dengfeng (Shandong U.) ; Li, Wenlong (Shandong U.) ; Li, Changyu (Shandong U.) ; Zhu, Chengguang (Shandong U.) ; Li, Han (Shandong U.) ; Liu, Shengquan (Hefei, CUST) ; Miao, Peng (Hefei, CUST) ; Du, Yanyan (Yantai U.) ; Duan, Yanyun (Shandong U.) Following the Higgs particle discovery, the Large Hadron Collider complex will be upgraded in several phases allowing the luminosity to increase to $7 \times 10^{34}cm^{-2}s^{-1}$. [...] arXiv:1808.08821. - 6 p. Fulltext

2018-09-15
00:05
 Search for leptoquarks coupled to third-generation quarks in proton-proton collisions at $\sqrt{s} =$ 13 TeV Three of the most significant measured deviations from standard model predictions, the enhanced decay rate for $\mathrm{B}\to{\mathrm{D}^{(*)}} \tau\nu$, hints of lepton universality violation in $\mathrm{B}\to{\mathrm{K}^{(*)}} \ell\ell$ decays, and the anomalous magnetic moment of the muon, can be explained by the existence of leptoquarks (LQs) with large couplings to third-generation quarks and masses at the TeV scale. [...] CERN-EP-2018-233 ; CMS-B2G-16-027-003. - 2018. Additional information for the analysis - CMS AuthorList - Fulltext

2018-09-14
04:07
 Experimental observation of proton bunch modulation in a plasma, at varying plasma densities / Adli, E. ; Ahuja, A. (CERN) ; Apsimon, O. ; Apsimon, R. ; Bachmann, A.M. ; Barrientos, D. ; Barros, M.M. ; Batkiewicz, J. ; Batsch, F. ; Bauche, J. et al. We give direct experimental evidence for the observation of the full transverse self-modulation of a relativistic proton bunch propagating through a dense plasma. [...] arXiv:1809.04478. - Fulltext

2018-09-14
04:07
 Enhancing the discovery prospects for SUSY-like decays with a novel kinematic variable / Debnath, Dipsikha ; Gainer, James S. ; Kilic, Can ; Kim, Doojin ; Matchev, Konstantin T. ; Yang, Yuan-Pao The lack of a new physics signal thus far at the Large Hadron Collider motivates us to consider how to look for challenging final states, with large Standard Model backgrounds and subtle kinematic features, such as cascade decays with compressed spectra. [...] arXiv:1809.04517 ; UTTG-09-18 ; CERN-TH-2018-203 ; UH-511-2018-1295. - 19 p. Fulltext