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Measurement of W.sup.±./sup. boson production in Pb+Pb collisions at √s.sub.NN./sub.=5.02TeV with the ATLAS detector

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    0520939 - FZÚ 2020 RIV DE eng J - Článek v odborném periodiku
    Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2919 autorů
    Measurement of W± boson production in Pb+Pb collisions at √sNN=5.02TeV with the ATLAS detector.
    European Physical Journal C. Roč. 79, č. 11 (2019), s. 1-32, č. článku 935. ISSN 1434-6044. E-ISSN 1434-6052
    Výzkumná infrastruktura: CERN-CZ - 90058
    Institucionální podpora: RVO:68378271
    Klíčová slova: ATLAS * CERN LHC Coll * peripheral * impact parameter * acceptance * kinematics * 5020 GeV-cms/nucleon
    Obor OECD: Particles and field physics
    Impakt faktor: 4.389, rok: 2019
    Způsob publikování: Open access

    A measurement of W± boson production in Pb+Pb collisions at √sNN=5.02 TeV is reported using data recorded by the ATLAS experiment at the LHC in 2015, corresponding to a total integrated luminosity of 0.49nb−1. The W± bosons are reconstructed in the electron or muon leptonic decay channels. Production yields of leptonically decaying W± bosons, normalised by the total number of minimum-bias events and the nuclear thickness function, are measured within a fiducial region defined by the detector acceptance and the main kinematic requirements. These normalised yields are measured separately for W+ and W− bosons, and are presented as a function of the absolute value of pseudorapidity of the charged lepton and of the collision centrality. The lepton charge asymmetry is also measured as a function of the absolute value of lepton pseudorapidity. In addition, nuclear modification factors are calculated using the W± boson production cross-sections measured in pp collisions.

    Trvalý link: http://hdl.handle.net/11104/0305613

     
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