# CERN Preprints

Ultimi arrivi:
2018-06-25
09:57
 Measurement of b hadron lifetimes in pp collisions at CMS / Mejia Guisao, Jhovanny Andres (CINVESTAV, IPN) ; De La Cruz-Burelo, Eduard (CINVESTAV, IPN) /CMS Collaboration Precise measurements of the lifetimes of the $B^0$, $B_s^0$, $\Lambda_b^0$, and $B_c^+$ hadrons using the decay channels $B^0 \to J/\psi K^{*}(892)^0$, $B^0 \to J/\psi K_s^{0}$, $B_s^0 \to J/\psi \pi^+ \pi^-$, $B_s^0 \to J/\psi \phi(1020)$, $\Lambda_b^0 \to J/\psi \Lambda^0$, and $B_c^+ \to J/\psi \pi^+$ were performed. The data sample, corresponding to an integrated luminosity of 19.7 fb$^{-1}$, was collected by the CMS detector at the LHC in proton-proton collisions at $\sqrt{s}=8$ $\textrm{TeV}$. [...] CMS-CR-2018-068.- Geneva : CERN, 2018 - 9 p. Fulltext: PDF; In : The 17th International Conference on B-Physics at Frontier Machines, Isola D'elba, Italy, 6 - 11 May 2018

2018-06-25
09:55
 Heavy ion measurements at ATLAS and CMS / Chapon, Emilien (CERN) /ATLAS and CMS Collaborations We present an overview of recent results from the ATLAS and CMS collaborations on heavy ion physics. Using data from proton-proton, proton-lead and lead-lead collisions at the LHC, these results help to shed light on the properties of nuclear matter.. CMS-CR-2018-053.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF; In : 53rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 17 - 24 Mar 2018

2018-06-25
09:54
 Searches with top quarks / Hogan, Julie Managan (Brown U.) /ATLAS and CMS Collaborations Heavy new physics particles including vector-like quarks, excited quarks, and heavy vector bosons can decay to top quarks alongside other standard model particles. Searches at the CERN LHC in final states with top quarks set strong constraints on the existence of such particles, and measurements of top quark associated production and branching fractions constrain models with flavor-changing neutral currents. [...] CMS-CR-2018-043.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF; In : 53rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 17 - 24 Mar 2018

2018-06-24
09:59
 Search for the decay stau --> tau + gravitino in the framework of the Minimal Gauge Mediated SUSY Breaking models / Cavallo, F R (Bologna U. ; INFN, Bologna) ; Navarria, F L (Bologna U. ; INFN, Bologna) A search for these decays was carried out in the context of Gauge Mediated SUSY Breaking models, using the data collected by DELPHI in 1995 and 1996 at the center of mass energies of 133, 161 and 172 GeV. [...] DELPHI 97-165. - 1997. DELPHI server - Full text

2018-06-24
09:59
 DELPHI results on neutral Higgs bosons in MSSM benchmark scenarios / Ruhlmann-Kleider, V (DAPNIA, Saclay) DAPNIA-05-234 ; DAPNIA-05-270 ; DELPHI-2003-045-CONF-665. - 2005. - 26 p. DAPN

2018-06-24
09:59
 Measurement of the |V(cs)| using W-decays at LEP-2 / Battaglia, M (Helsinki Inst. of Phys.) ; Erzen, B (Stefan Inst., Ljubljana) ; Golob, B (Stefan Inst., Ljubljana) ; Liko, D (CERN) ; Podobnik, T (CERN ; Oxford U. ; Ljubljana U.) ; Stanic, S (Stefan Inst., Ljubljana) ; Tomaradze, A (Antwerp U.) DELPHI-CONF-97-114 ; HEP-97-535. - 1997. - 15 p.

2018-06-24
09:59
 DELPHI: A DETECTOR WITH LEPTON, PHOTON AND HADRON IDENTIFICATION: LETTER OF INTENT FOR AN EXPERIMENTAL PROGRAM AT LEP / Crozon, M ; Urban, M ; Richard, F ; Baubillier, M ; Smadja, G ; Degre, A ; Engler, J ; Drees, J ; Myatt, G ; Venus, W et al. DELPHI-82-1. - 1982. - 21 p.

2018-06-23
06:01
 Facility plans for the LHEC / Holzer, B J (CERN) The LHeC aims at the generation of hadron-lepton collisions with center of mass energies in the TeV scale. [...] Berlin, Germany : Science Wise Publ., 2009. - 5 p. Fulltext

2018-06-22
17:10
 Observation of centrality-dependent acoplanarity for muon pairs produced via two-photon scattering in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ATLAS detector This Letter presents a measurement of $\gamma \gamma \rightarrow \mu^{+} \mu^{-}$ production in Pb+Pb collisions recorded by the ATLAS detector at the Large Hadron Collider at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with an integrated luminosity of 0.49 nb$^{-1}$. [...] CERN-EP-2018-100. - 2018. Fulltext - Previous draft version

2018-06-22
06:47
 Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel / Mahbubani, Rakhi ; Zurita, Jose We examine the sensitivity at a future 100 TeV proton-proton collider to compressed dark sectors whose decay products are invisible due to below-threshold energies and/or small couplings to the Standard Model. [...] arXiv:1806.08310 ; CERN-TH/2018-133 ; TTP18-021. - 22 p. Full text