Jet-Hadron Correlations in root s(NN)=200 GeV p plus p and Central Au plus Au Collisions

0428244 - ÚJF 2015 RIV US eng J - Journal Article
Adamczyk, L. - Adkins, J. K. - Agakishiev, G. - Aggarwal, M. M. - Ahammed, Z. - Alekseev, I. - Alford, J. - Anson, C. - Aparin, A. A. - Arkhipkin, D. - Bielčík, J. - Bielčíková, Jana - Chaloupka, P. - Pachr, M. - Rusňák, Jan - Rusňáková, O. - Šumbera, Michal - Tlustý, David - Trzeciak, B. A. - Vértési, Robert … Total 356 authors
Jet-Hadron Correlations in root s(NN)=200 GeV p plus p and Central Au plus Au Collisions.
Physical Review Letters. Roč. 112, č. 12 (2014), s. 122301. ISSN 0031-9007. E-ISSN 1079-7114
R&D Projects: GA ČR GA13-20841S
Institutional support: RVO:61389005
Keywords : heavy ion collisions * STAR * transverse momentum
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 7.512, year: 2014

Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au + Au and p + p collisions at root s(NN) = 200 GeV in STAR are presented. The trigger jet population in Au + Au collisions is biased toward jets that have not interacted with the medium, allowing easier matching of jet energies between Au + Au and p + p collisions while enhancing medium effects on the recoil jet. The associated hadron yield of the recoil jet is significantly suppressed at high transverse momentum (p(T)(assoc)) and enhanced at low p(T)(assoc) in 0%-20% central Au + Au collisions compared to p + p collisions, which is indicative of medium-induced parton energy loss in ultrarelativistic heavy-ion collisions.
Permanent Link: http://hdl.handle.net/11104/0233640