Elliptic flow of non-photonic electrons in Au+Au collisions at $\sqrt{s_{\rm NN}} =$ 200, 62.4 and 39 GeV

Abstract : We present the measurements of elliptic flow ($v_2$) of non-photonic electrons (NPE) by the STAR experiment using 2- and 4-particle correlations, $v_2${2} and $v_2${4}, and the event plane method in Au+Au collisions at $\sqrt{s_{NN}} = 200$ GeV, and $v_2${2} at 62.4 and 39 GeV. $v_2${2} and $v_2${4} are non-zero at low and intermediate transverse momentum ($p_T$) at 200 GeV, and $v_2${2} is consistent with zero at low $p_T$ at other energies. For Au+Au collisions at $p_T<1$ GeV/c, there is a statistically significant difference between $v_2${2} at 200 GeV and $v_2${2} at the two lower beam energies.
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Journal articles
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http://hal.in2p3.fr/in2p3-00996808
Contributor : Sylvie Flores <>
Submitted on : Tuesday, May 27, 2014 - 8:03:33 AM
Last modification on : Thursday, August 27, 2020 - 3:22:55 AM

Citation

L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, et al.. Elliptic flow of non-photonic electrons in Au+Au collisions at $\sqrt{s_{\rm NN}} =$ 200, 62.4 and 39 GeV. Physical Review C, American Physical Society, 2017, 95 (3), pp.034907. ⟨10.1103/PhysRevC.95.034907⟩. ⟨in2p3-00996808⟩

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