Dielectron azimuthal anisotropy at mid-rapidity in Au + Au collisions at √sNN=200 GeV

Adamczyk, L. and Planinić, Mirko and Poljak, Nikola and Zyzak, M. (STAR Collaboration) (2014) Dielectron azimuthal anisotropy at mid-rapidity in Au + Au collisions at √sNN=200 GeV. Physical Review C, 90 (6). pp. 64904-15. ISSN 0556-2813

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We report on the first measurement of the azimuthal anisotropy (v2) of dielectrons (e+e− pairs) at mid-rapidity from √sNN=200 GeV Au + Au collisions with the STAR detector at the Relativistic Heavy Ion Collider (RHIC), presented as a function of transverse momentum (pT) for different invariant-mass regions. In the mass region Mee<1.1 GeV/c2 the dielectron v2 measurements are found to be consistent with expectations from π0,η,ω, and ϕ decay contributions. In the mass region 1.1<Mee<2.9GeV/c2, the measured dielectron v2 is consistent, within experimental uncertainties, with that from the cc¯ contributions.

Item Type: Article
Date: December 2014
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2014) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 20 Dec 2014 17:01
Last Modified: 20 Dec 2014 17:04
URI: http://digre.pmf.unizg.hr/id/eprint/3567

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