Počet záznamů: 1

Determination of the strong coupling constant from the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV

  1. 1.
    0339324 - FZU-D 2010 RIV US eng J - Článek v odborném periodiku
    Abazov, V. M. - Abbott, B. - Abolins, M. - Kupčo, Alexander - Lokajíček, Miloš
    Determination of the strong coupling constant from the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV.
    Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 80, č. 11 (2009), 111107./1-111107./6 ISSN 1550-7998
    Grant CEP: GA MŠk LC527; GA MŠk LA08047
    Výzkumný záměr: CEZ:AV0Z10100502
    Klíčová slova: ppbar collisions * et cross section
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 4.922, rok: 2009
    http://arxiv.org/abs/0911.2710

    We determine the strong coupling constant alphas and its energy dependence from the pT dependence of the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV. The strong coupling constant is determined over the transverse momentum range 50 < pT < 145 GeV. Using perturbative QCD calculations to order O(alphas^3) combined with O(alphas^4) contributions from threshold corrections, we obtain alphas(MZ) = 0.1161 +0.0041 -0.0048. This is the most precise result obtained at a hadron-hadron collider.
    Trvalý link: http://hdl.handle.net/11104/0182883