Elliptic Flow for {phi} Mesons and (Anti)deuterons in Au+Au Collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Fri Aug 03 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.052301· OSTI ID:20957920

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; D'Enterria, 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 (United States) and Nevis Laboratories, Irvington, New York 10533 (United States)

Differential elliptic flow (v{sub 2}) for {phi} mesons and (anti)deuterons (d)d is measured for Au+Au collisions at {radical}(s{sub NN})=200 GeV. The v{sub 2} for {phi} mesons follows the trend of lighter {pi}{sup {+-}} and K{sup {+-}} mesons, suggesting that ordinary hadrons interacting with standard hadronic cross sections are not the primary driver for elliptic flow development. The v{sub 2} values for (d)d suggest that elliptic flow is additive for composite particles. This further validation of the universal scaling of v{sub 2} per constituent quark for baryons and mesons suggests that partonic collectivity dominates the transverse expansion dynamics.

• OSTI ID: 20957920
• Journal Information: Physical Review Letters, Vol. 99, Issue 5; Other Information: DOI: 10.1103/PhysRevLett.99.052301; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

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GOLD 197 REACTIONS
GOLD 197 TARGET
KAONS MINUS
KAONS PLUS
PHI MESONS
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