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

SYSNO ASEP	0345165
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Photon-hadron jet correlations in p+p and Au+Au collisions at s(NN)=200 GeV
Author(s)	Adare, A. (US) Afanasiev, S. (RU) Aidala, C. (US) Růžička, Pavel (FZU-D) Tomášek, Lukáš (FZU-D)_{RID, ORCID} Vrba, Václav (FZU-D)_{RID, ORCID}
Source Title	Physical Review. C - ISSN 0556-2813 Roč. 80, č. 2 (2009), 024908/1-024908/4
Number of pages	4 s.
Language	eng - English
Country	US - United States
Keywords	PHENIX ; photon ; jet correlations
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LA08015 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100502 - FZU-D (2005-2011)
UT WOS	000269640400054
DOI	10.1103/PhysRevC.80.024908
Annotation	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.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2011

Number of the records: 1