Document Type

Article

Publication Date

2014

DOI

10.1103/PhysRevC.90.064904

Publication Title

Physical Review C

Volume

90

Issue

6

Pages

064904- (1-15)

Abstract

We report on the first measurement of the azimuthal anisotropy v2 of dielectrons (e+e- pairs) at mid-rapidity from √ˢᶰᶰ = 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 v2measurements are found to be consistent with expectations from π0, η, ω, and Φ decay contributions. In the mass region 1.1 < Mee < 2.9 GeV/c2, the measured dielectron v2is consistent, within experimental uncertainties, with that from the c¯c contributions.

Comments

"Yes, the author or the author's employer may use all or part of the APS published article, including the APS-prepared version (e.g., the PDF from the online journal) without revision or modification, on the author's or employer's website as long as a fee is not charged. If a fee is charged, then APS permission must be sought. In all cases, the appropriate bibliographic citation and notice of the APS copyright must be included."

© American Physical Society

Original Publication Citation

Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., . . . Zyzak, M. (2014). Dielectron azimuthal anisotropy at mid-rapidity in Au plus Au collisions at √ˢᶰᶰ = 200 GeV. Physical Review C, 90(6), 15. doi:10.1103/PhysRevC.90.064904

Download

Included in

Nuclear Commons

Share

COinS