Počet záznamů: 1

Photon-hadron jet correlations in p+p and Au+Au collisions at s(NN)=200 GeV

  1. 1.
    0345165 - FZU-D 2011 RIV US eng J - Článek v odborném periodiku
    Adare, A. - Afanasiev, S. - Aidala, C. - Růžička, Pavel - Tomášek, Lukáš - Vrba, Václav
    Photon-hadron jet correlations in p+p and Au+Au collisions at s(NN)=200 GeV.
    Physical Review. C. Roč. 80, č. 2 (2009), 024908/1-024908/4 ISSN 0556-2813
    Grant CEP: GA MŠk LA08015
    Výzkumný záměr: CEZ:AV0Z10100502
    Klíčová slova: PHENIX * photon * jet correlations
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 3.477, rok: 2009
    http://arxiv.org/pdf/0903.3399 http://arxiv.org/pdf/0903.3399

    We report the observation at the Relativistic Heavy Ion Collider (RHIC) of suppression of back-to-back correlations in the direct photon+jet channel in Au+Au relative to p+p collisions. Two-particle correlations of direct photon triggers with associated hadrons are obtained by statistical subtraction of the decay photon-hadron background. The initial momentum of the away-side parton is tightly constrained, because the parton-photon pair exactly balance in momentum at leading order in perturbative quantum chromodynamics (pQCD), making such correlations a powerful probe of the in-medium parton energy loss.
    Trvalý link: http://hdl.handle.net/11104/0186494