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Measurement of ?c1 and ?c2 production with s = 7 TeV pp collisions at ATLAS

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00433266" target="_blank" >RIV/68378271:_____/14:00433266 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1007/JHEP07(2014)154" target="_blank" >http://dx.doi.org/10.1007/JHEP07(2014)154</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/JHEP07(2014)154" target="_blank" >10.1007/JHEP07(2014)154</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurement of ?c1 and ?c2 production with s = 7 TeV pp collisions at ATLAS

  • Original language description

    The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb^-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c -> J/psi gamma (with J/psi -> mu+mu-) where photons are reconstructed from gamma -> e+e- conversions. The production rate of the chi_c2 state relative to the chi_c1 state is measured for prompt and non-prompt chi_c asa function of J/psi transverse momentum. The prompt chi_c cross-sections are combined with existing measurements of prompt J/psi production to derive the fraction of prompt J/psi produced in feed-down from chi_c decays. The fractions of chi_c1 and chi_c2 produced in b-hadron decays are also measured.

  • 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/LG13009" target="_blank" >LG13009: International experiment ATLAS-CERN</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2014

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of High Energy Physics

  • ISSN

    1029-8479

  • e-ISSN

  • Volume of the periodical

    2014

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    52

  • Pages from-to

    1-52

  • UT code for WoS article

    000340391300001

  • EID of the result in the Scopus database