Freeze-out conditions from strangeness observables at RHIC
Freeze-out conditions from strangeness observables at RHIC
复制标题
RHIC 奇异观测值的冻结条件
DOI:
10.1140/epjc/s10052-019-6661-3
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
M. Nahrgang
中科院分区:
文献类型:
--
作者:
M. Bluhm;M. Nahrgang
We determine chemical freeze-out conditions from strangeness observables measured at RHIC beam energies. Based on a combined analysis of lowest-order net-kaon fluctuations and strange anti-baryon over baryon yield ratios we obtain visibly enhanced freeze-out conditions at high beam energies compared to previous studies which analyzed net-proton and net-charge fluctuations. Our findings are in qualitative agreement with the recent study (Bellwied et al. in arXiv:1805.00088 [hep-ph], 2018) which utilizes the net-kaon fluctuation data in combination with information from lattice QCD. Our complementary approach shows that also strange hadron yield ratios are described by such enhanced freeze-out conditions.
DOI:
10.1088/1742-6596/432/1/012012
发表时间:
2011-12
期刊:
Journal of Physics: Conference Series
影响因子:
--
作者:
S. Borsányi;Z. Fodor;S. Katz;S. Krieg;C. Ratti;K. Szabó
通讯作者:
S. Borsányi;Z. Fodor;S. Katz;S. Krieg;C. Ratti;K. Szabó
影响因子:
5
作者:
Alba, Paolo;Bellwied, Rene;Ratti, Claudia
通讯作者:
Ratti, Claudia