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Title: Dielectron Azimuthal Anisotropy at mid-rapidity in Au+Au collisions at root s=200GeV

Abstract

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 1.1ee<2.9GeV/c², the measured dielectron v₂ is consistent, within experimental uncertainties, with that from the cc¯ contributions.

Authors:
 [1]
  1. AGH University of Science and Technology, Cracow (Poland). et al.
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
STAR Collaboration
OSTI Identifier:
1172087
Alternate Identifier(s):
OSTI ID: 1180148
Report Number(s):
BNL-107407-2015-JA
Journal ID: ISSN 0556-2813; PRVCAN; R&D Project: PO 004; KB0202012
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C, Nuclear Physics
Additional Journal Information:
Journal Volume: 90; Journal Issue: 064904; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Adamczyk, L. Dielectron Azimuthal Anisotropy at mid-rapidity in Au+Au collisions at root s=200GeV. United States: N. p., 2014. Web. doi:10.1103/PhysRevC.90.064904.
Adamczyk, L. Dielectron Azimuthal Anisotropy at mid-rapidity in Au+Au collisions at root s=200GeV. United States. https://doi.org/10.1103/PhysRevC.90.064904
Adamczyk, L. Thu . "Dielectron Azimuthal Anisotropy at mid-rapidity in Au+Au collisions at root s=200GeV". United States. https://doi.org/10.1103/PhysRevC.90.064904. https://www.osti.gov/servlets/purl/1172087.
@article{osti_1172087,
title = {Dielectron Azimuthal Anisotropy at mid-rapidity in Au+Au collisions at root s=200GeV},
author = {Adamczyk, L.},
abstractNote = {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 1.1ee<2.9GeV/c², the measured dielectron v₂ is consistent, within experimental uncertainties, with that from the cc¯ contributions.},
doi = {10.1103/PhysRevC.90.064904},
journal = {Physical Review C, Nuclear Physics},
number = 064904,
volume = 90,
place = {United States},
year = {Thu Dec 11 00:00:00 EST 2014},
month = {Thu Dec 11 00:00:00 EST 2014}
}

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Cited by: 12 works
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Works referencing / citing this record:

Measurements of dielectron production in Au + Au collisions at s N N = 200 GeV from the STAR experiment
journal, August 2015