In-medium meson properties and screening correlators

30th Winter Workshop on Nuclear Dynamics

Bazavov, A.^1 ; Karsch, F.^1,2 ; Maezawa, Y.^2 ; Mukherjee, Swagato^1 ; Petreczky, P.^1

Physics Department, Brookhaven National Laboratory, Upton

NY

11973, United States^1

Fakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, Germany^2

关键词: Charm quarks;    Correlation function;    Meson properties;    Staggered quarks;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/535/1/012031/pdf
DOI  :  10.1088/1742-6596/535/1/012031

来源: IOP

【 摘 要 】

We study spatial meson correlation functions consisting of strange quarks, strange and charm quarks and charm quarks in (2 + 1)-flavor QCD using the highly improved staggered quark action. We find that the in-medium modification of the meson correlators decreases with increasing charm quark content and decreasing size. In particular, we find strong in-medium modification of φ and Ds meson correlators around the chiral transition temperature Tc, while J/ψ and ηc correlators show strong in-medium modification only at temperatures of 1.4Tc.