arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0812.1177hep-lat
收藏

Wilson费米子对QCD状态方程的截止效应

Cutoff effects of Wilson fermions on the QCD equation of state to O(g^2)

Owe Philipsen, Lars Zeidlewicz

摘要:

我们计算了Wilson费米子在标准、扭曲质量和Clover改进的晶格微扰理论中O(g^2)对热力学压强的贡献,包括有限质量效应.我们比较了连续的方法,这些离散化的大规模的理想和相互作用的气体。在所有情况下,对于N_PDMATHABMM 8,Wilson型费米子的截止效应与交错费米子的截止效应相当,但渐近标度需要$N_τ>10$ .

英文摘要:

We compute the O(g^2) contribution to the thermodynamic pressure for Wilson fermions in the standard, the twisted mass, and clover improved formulation in lattice perturbation theory, including finite mass effects. We compare the continuum approaches of these discretizations for the massive ideal and interacting gas. In all cases, for N_t \geq 8 cutoff effects of Wilson type fermions are comparable to those of staggered fermions, but asymptotic scaling requires $N_τ>10$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑