Issue |
EPJ Web Conf.
Volume 276, 2023
The 20th International Conference on Strangeness in Quark Matter (SQM 2022)
|
|
---|---|---|
Article Number | 01006 | |
Number of page(s) | 4 | |
Section | Bulk Matter Phenomena, QCD Phase Diagram, and Critical Point | |
DOI | https://doi.org/10.1051/epjconf/202327601006 | |
Published online | 01 March 2023 |
https://doi.org/10.1051/epjconf/202327601006
Seventh and eighth-order cumulants of net-proton multiplicity distributions in heavy-ion collisions at RHIC-STAR
1
School of Physical Sciences, National Institute of Science Education and Research, Jatni 752050, India
2
Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
* e-mail: ashish.pandav@niser.ac.in
Published online: 1 March 2023
We report the first measurements of seventh and eighth-order cumulants of net-proton distributions in Au+Au collisions at √SNN=27,54.4, and 200 GeV. The measurements are performed at mid-rapidity |y| < 0.5 within 0.4 < pT < 2.0 GeV/c using the Time Projection Chamber and Time-of-Flight detector. Motivation for the measurements comes from lattice-QCD and QCD based model calculations that predict their negative signs for a crossover quark-hadron transition. While 0-40% centrality measurements at √SNN=54.4 and 200 GeV are consistent with zero within large uncertainties, at √SNN=27 GeV, they are negative with ≤ 1.4σ significance. The peripheral 70-80% measurements are either positive or consistent with zero for the three energies.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.