Charmonium properties in hot quenched lattice QCD
Charmonium properties in hot quenched lattice QCD
复制标题
DOI:
10.1103/physrevd.86.014509
复制
发表时间:
2012-04
影响因子:
5
通讯作者:
H. Ding;A. Francis;O. Kaczmarek;F. Karsch;H. Satz;W. Soeldner
中科院分区:
文献类型:
--
作者:
H. Ding;A. Francis;O. Kaczmarek;F. Karsch;H. Satz;W. Soeldner
We study the properties of charmonium states at finite temperature inquenched QCD on large and fine isotropic lattices. We perform a detailedanalysis of charmonium correlation and spectral functions both below and above$T_c$. Our analysis suggests that both S wave states ($J/\psi$ and $\eta_c$)and P wave states ($\chi_{c0}$ and $\chi_{c1}$) disappear already at about $1.5T_c$. The charm diffusion coefficient is estimated through the Kubo formula andfound to be compatible with zero below $T_c$ and approximately $1/\pi T$ at$1.5 T_c\lesssim T\lesssim 3 T_c$.