Particle-Species Dependent Modification of Jet-Induced Correlations in Au+Au Collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Fri Aug 22 04:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.101.082301· OSTI ID:21134150

Afanasiev, S; Isupov, A; Litvinenko, A; Malakhov, A; Peresedov, V; Rukoyatkin, P; Zolin, L ^[1]; Aidala, C; Batsouli, S; Bjorndal, M T; Chi, C Y; Chiu, M; Cole, B A; DEnterria, D; Frantz, J E; Jia, J; Jin, J; Winter, D; Zajc, W A; Zhang, C ^[2]

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1. Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region (Russian Federation)
2. Columbia University, New York, New York 10027, USA, and Nevis Laboratories, Irvington, New York 10533 (United States)

Measurements in Au+Au collisions at {radical}(s{sub NN})=200 GeV of jet correlations for a trigger hadron at intermediate transverse momentum (p{sub T,trig}) with associated mesons or baryons at lower p{sub T,assoc} indicate strong modification of the away-side jet. The ratio of jet-associated baryons to mesons increases with centrality and p{sub T,assoc}. For the most central collisions, the ratio is similar to that for inclusive measurements. This trend is incompatible with in-vacuum fragmentation but could be due to jetlike contributions from correlated soft partons, which recombine upon hadronization.

• OSTI ID: 21134150
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

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