Elliptic Flow for {phi} Mesons and (Anti)deuterons in Au+Au Collisions at {radical}(s{sub NN})=200 GeV
Journal Article
·
· Physical Review Letters
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region (Russian Federation)
- 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, Journal Name: Physical Review Letters Journal Issue: 5 Vol. 99; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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