Speaker
Mr
Yi Guo
(USTC)
Description
We report the STAR newest measurement of dielectron production in
Au+Au and p+p collisions at $\sqrt{s_{NN}}$ = 200GeV. The data sets
used in the analysis include large samples collected in 2010 and 2011
for Au+Au and 2012 for p+p which both yield about a factor of 3 more
statistics compared to previously reported STAR results.
We present the centrality and $p_{T}$ dependence of dielectron production
from low-mass ($M_{ee}$<1.1 $GeV/c^{2}$)
and intermediate-mass (1.1<$M_{ee}$<3 $GeV/c^{2}$)
regions. The results were measured in the STAR acceptance at midrapidity
with full azimuth coverage. The measurements are compared with various
models to gain insight of underlying physics. Furthermore, we report
the preliminary results of dielectron azimuthal correlation in the
intermediate-mass region in Au+Au and p+p collisions at $\sqrt{s_{NN}}$
= 200GeV and compare the data with model calculations.
| On behalf of collaboration: | STAR |
|---|
Author
Mr
Yi Guo
(USTC)
