Scale-dependence of transverse momentum correlations in Pb Au collisions at 158 A GeV / c
We present results on transverse momentum correlations of charged particle pairs produced in Pb Au collisions at 158 A GeV / c at the Super Proton Synchrotron. The transverse momentum correlations have been studied as a function of collision centrality, angular separation of the particle pairs, tran...
Saved in:
Published in: | Nuclear physics. A Vol. 811; no. 1; pp. 179 - 196 |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Elsevier B.V
01-10-2008
|
Subjects: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | We present results on transverse momentum correlations of charged particle pairs produced in Pb
Au collisions at
158
A
GeV
/
c
at the Super Proton Synchrotron. The transverse momentum correlations have been studied as a function of collision centrality, angular separation of the particle pairs, transverse momentum and charge sign. We demonstrate that the results are in agreement with previous findings in scale-independent analyses at the same beam energy. Employing the two-particle momentum correlator
〈
Δ
p
t
,
i
,
Δ
p
t
,
j
〉
and the cumulative
p
t
variable
x
(
p
t
)
, we identify, using the scale-dependent approach presented in this paper, different sources contributing to the measured correlations, such as quantum and Coulomb correlations, elliptic flow and mini-jet fragmentation. |
---|---|
ISSN: | 0375-9474 |
DOI: | 10.1016/j.nuclphysa.2008.07.014 |