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ID 19497
file
creator
PHENIX Collaboration
Enokizono, Akitomo
Hachiya, Takashi
Kohama, Takeshi
Nakamura, Tomoaki
subject
nuclei with mass number 190 to 219
heavy ion-nucleus reactions
nuclear matter
abstract
The transverse momentum dependence of the azimuthal anisotropy parameter v2, the second harmonic of the azimuthal distribution, for electrons at midrapidity (|η|<0.35) has been measured with the PHENIX detector in Au+Au collisions at √sNN=200 GeV. The measurement was made with respect to the reaction plane defined at high rapidities (|η|=3.1-3.9). From the result we have measured the v2 of electrons from heavy flavor decay after subtraction of the v2 of electrons from other sources such as photon conversions and Dalitz decay from light neutral mesons. We observe a nonzero single electron v2 with a 90% confidence level in the intermediate-pT region. The precision of the present data set does not permit us to conclude definitively that heavy quarks exhibit thermalization with the transverse flow of the bulk matter.
journal title
Physical Review C - Nuclear Physics
volume
Volume 72
issue
Issue 2
start page
024901-1
end page
024901-10
date of issued
2005-10-10
publisher
American Physical Society
issn
0556-2813
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2005 The American Physical Society.
relation url
department
Graduate School of Science