Speaker
Description
Understanding QCD phase structure is one of ultimate goals of high-energy heavy-ion colliding experiments.
At BNL-RHIC, the Beam Energy Scan (BES-I) program was carried out from 2010 to 2017.
Data sets of Au+Au collisions were collected for various collision energies
from $\sqrt{s_{\rm NN}}=200$ GeV down to $7.7$ GeV by the STAR experiment.
Recently, the STAR collaboration reported a nonmonotonic beam energy dependence of the fourth-order fluctuations
of net-proton multiplicity distributions, which could hint a signal from the QCD critical end point
at $\sqrt{s_{\rm NN}}\approx7.7$ GeV.
In this talk, we will present results on fluctuations of net-particle distributions from the BES-I program.
Recent progress on the fifth- and sixth-order fluctuations will be reported,
and will be compared to theoretical calculations.
Future prospects for new data from BES-II and fixed-target programs will be also discussed.
Details
Toshihiro Nonaka
| Is this abstract from experiment? | Yes |
|---|---|
| Name of experiment and experimental site | STAR collaboration |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | Yes |
