# CERN Preprints

2017-09-21
22:21
 Observation of top quark production in proton-nucleus collisions The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of $\sqrt{\smash[b]{s_{\mathrm{NN}}}} =$ 8.16 TeV. [...] CERN-EP-2017-239 ; CMS-HIN-17-002-003. - 2017. Additional information for the analysis - CMS AuthorList - Fulltext

2017-09-21
21:44
 Evidence for the Higgs boson decay to a bottom quark-antiquark pair A search for the standard model (SM) Higgs boson (H) decaying to $\mathrm{b\bar{b}}$ when produced in association with an electroweak vector boson is reported for the following processes: $\mathrm{Z}(\nu\nu)\mathrm{H}$, $\mathrm{W}(\mu\nu)\mathrm{H}$, $\mathrm{W}(\mathrm{e}\nu)\mathrm{H}$, $\mathrm{Z}(\mu\mu)\mathrm{H}$, and $\mathrm{Z}(\mathrm{e}\mathrm{e})\mathrm{H}$. [...] CERN-EP-2017-233 ; CMS-HIG-16-044-003. - 2017. Additional information for the analysis - CMS AuthorList - Fulltext

2017-09-21
15:37
 Measurement of the $t\bar{t}$ spin correlations and top quark polarization in dileptonic channel / Khatiwada, Ajeeta (Purdue U.) /CMS Collaboration The degree of top polarization and strength of $t\bar{t}$ correlation are dependent on production dynamics, decay mechanism, and choice of the observables. At the LHC, measurement of the top polarization and spin correlations in $t\bar{t}$ production is possible through various observables related to the angular distribution of decay leptons. [...] CMS-CR-2017-268.- Geneva : CERN, 2017 - 9 p. Fulltext: PDF; In : DPF Meeting 2017, Batavia, Il, United States Of America, 31 Jul - 4 Aug 2017

2017-09-21
15:32
 Search for supersymmetry with compressed mass spectra or decays via Higgs bosons at CMS / Heidegger, Constantin (Zurich, ETH) /CMS Collaboration In this talk, a review of searches for supersymmetric particles with very compressed mass spectra and searches for supersymmetric particles that decay via Higgs bosons is presented. All searches have used $35.9\,\mathrm{fb}^{-1}$ of $13\,\mathrm{TeV}$ data collected by the CMS detector at the CERN LHC in 2016.. CMS-CR-2017-236.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF; In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017

2017-09-21
15:32
 Search for EWK production of SUSY in final states with multiple leptons at the CMS experiment at the CERN LHC / Heidegger, Constantin (Zurich, ETH) /CMS Collaboration This poster reports on the search for the production of charginos and neutralinos in events with either two leptons of the same charge or three or more leptons using the full 2016 proton-proton collision dataset of $35.9\,\mathrm{fb}^{-1}$ at $\sqrt{s}=13\,\mathrm{TeV}$ collected by the CMS detector. Exclusion limits at $95\,\%$ confidence level range between $450-1100\,\mathrm{GeV}$ depending on the SUSY scenario.. CMS-CR-2017-237.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF; In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017

2017-09-21
15:32
 Performance of the modules for layer 1 of the CMS phase 1 pixel detector upgrade / Meinhard, Maren Tabea (Zurich, ETH) ; Backhaus, Malte (Zurich, ETH) ; Berger, Pirmin (Zurich, ETH) ; Starodumov, Andrey (Boskovic Inst., Zagreb) The instantaneous luminosity of the Large Hadron Collider will increase to up to 2x10$^{34}$\;cm$^{-2}$s$^{-1}$ by 2023. In order to cope with such luminosities, the pixel detector of the CMS experiment has been replaced in January 2017. [...] CMS-CR-2017-241.- Geneva : CERN, 2017 - 9 p. Fulltext: PDF; In : 19th International Workshop on Radiation Imaging Detectors, Krakow, Poland, 2 - 6 Jul 2017

2017-09-21
15:32
 The construction of the phase 1 upgrade of the CMS pixel detector / Weber, Hannsjorg Artur (Fermilab) /CMS Collaboration The innermost layers of the original CMS tracker were built out of pixel detectors arranged in three barrel layers and two forward disks in each endcap. The original CMS detector was designed for the nominal instantaneous LHC luminosity of $1\times10^{34}\,\text{cm}^{-2}\text{s}^{-1}$. [...] CMS-CR-2017-247.- Geneva : CERN, 2017 - 10 p. Fulltext: PDF; In : The 11th International conference in Position Sensitive Detectors, Milton Keynes, United Kingdom, 3 - 8 Sep 2017

2017-09-21
14:21
 Search for collectivity with azimuthal J/$\psi$-hadron correlations in high multiplicity p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 and 8.16 TeV / ALICE Collaboration We present a measurement of azimuthal correlations between inclusive J/$\psi$ and charged hadrons in p-Pb collisions recorded with the ALICE detector at the CERN LHC. [...] arXiv:1709.06807 ; CERN-EP-2017-245. - 21 p. Preprint

2017-09-21
14:21
 Searches for New Heavy Resonances in Final States with Leptons and Photons in ATLAS and CMS / Pandolfi, Francesco ; ATLAS, for the Searches for resonances in final states with leptons and photons have always been a powerful tool for discovery in high energy physics. [...] arXiv:1709.06119. - Preprint

2017-09-21
14:21
 The S-matrix Bootstrap III: Higher Dimensional Amplitudes / Paulos, Miguel F. (CERN) ; Penedones, Joao (Ecole Polytechnique, Lausanne) ; Toledo, Jonathan (Ecole Polytechnique, Lausanne) ; van Rees, Balt C. (Durham U., CPT) ; Vieira, Pedro (Perimeter Inst. Theor. Phys. ; ICTP-SAIFR, Sao Paulo) We consider constraints on the S-matrix of any gapped, Lorentz invariant quantum field theory in 3+1 dimensions due to crossing symmetry, analyticity and unitarity. [...] arXiv:1708.06765 ; CERN-TH-2017-162. - 43 p. Preprint