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Measurement of the prompt J/psi and psi(2S) polarizations in pp collisions at root s=7 TeV

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10188958" target="_blank" >RIV/00216208:11320/13:10188958 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.physletb.2013.10.055" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2013.10.055</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.physletb.2013.10.055" target="_blank" >10.1016/j.physletb.2013.10.055</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurement of the prompt J/psi and psi(2S) polarizations in pp collisions at root s=7 TeV

  • Original language description

    The polarizations of prompt J/psi and psi(2S) mesons are measured in proton-proton collisions at root s = 7 TeV, using a dimuon data sample collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.9 fb(-1). The prompt J/psi and psi(2S) polarization parameters lambda, lambda, and lambda, as well as the frame-invariant quantity (lambda) over bar. are measured from the dimuon decay angular distributions in three different polarization frames. The J/psi results are obtainedin the transverse momentum range 14 < P-T < 70 GeV, in the rapidity intervals |y| < 0.6 and 0.6 < |y| < 1.2. The corresponding psi(2S) results cover 14 < PT < 50 GeV and include a third rapidity bin, 1.2 < |y| < 1.5. No evidence of large polarizations is seen in these kinematic regions, which extend much beyond those previously explored. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BF - Elementary particle theory and high energy physics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LG13031" target="_blank" >LG13031: Collaboration of the Czech Republic with CERN</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2013

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

  • ISSN

    0370-2693

  • e-ISSN

  • Volume of the periodical

    727

  • Issue of the periodical within the volume

    4-5

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    21

  • Pages from-to

    381-402

  • UT code for WoS article

    000328722500006

  • EID of the result in the Scopus database