Počet záznamů: 1

Measurement of the normalized Z/γ* μ+μ- transverse momentum distribution in collisions at √s=1.96 TeV

  1. 1.
    0365635 - FZU-D 2012 RIV NL eng J - Článek v odborném periodiku
    Abazov, V. M. - Abbott, B. - Abolins, M. - Kupčo, Alexander - Lokajíček, Miloš
    Measurement of the normalized Z/γ* μ+μ- transverse momentum distribution in collisions at √s=1.96 TeV.
    Physics Letters. B. Roč. 693, č. 5 (2010), s. 522-530 ISSN 0370-2693
    Grant CEP: GA MŠk LA08047; GA MŠk LC527
    Výzkumný záměr: CEZ:AV0Z10100502
    Klíčová slova: bosons * differential cross section * perturbative QCD * event generators * Monte Carlo models
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 5.255, rok: 2010
    http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVN-511P7J4-1&_user=625012&_coverDate=10%2F18%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin

    We present a new measurement of the Z/γ* transverse momentum distribution in the range 0–330 GeV, in proton–antiproton collisions at View the MathML source. The measurement uses 0.97 fb−1 of integrated luminosity recorded by the D0 experiment and is the first using the Z/γ* μ+μ−+X channel at this center-of-mass energy. This is also the first measurement of the Z/γ* transverse momentum distribution that presents the result at the level of particles entering the detector, minimizing dependence on theoretical models. As any momentum of the Z/γ* in the plane transverse to the incoming beams must be balanced by some recoiling system, primarily the result of QCD radiation in the initial state, this variable is an excellent probe of the underlying process. Tests of the predictions of QCD calculations and current event generators show they have varied success in describing the data.
    Trvalý link: http://hdl.handle.net/11104/0200829