Charm Quarks and the QCD Equation of State

Charm Quarks and the QCD Equation of State
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粲夸克和 QCD 状态方程

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发表时间:
2007
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通讯作者:
M. Cheng
M. Cheng
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作者:
M. Cheng

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我们在零化学势下,在动态生成的2+1风味背景下,利用部分淬灭的p4粲夸克,研究了粲夸克对QCD状态方程的影响。我们给出了粲夸克对高温区域($T_c < T < 4 T_c$)能量密度和压力的贡献的初步结果,并将其与自由场计算进行了比较。粲夸克的质量是通过测量粲谱来确定的。
We present a study of the effect of charm quarks on the QCD equation of state using partially-quenched p4 charm quarks on a dynamically generated 2+1 flavor background, at zero chemical potential. We show preliminary results for the charm quark contribution to the energy density and pressure in the high temperature region ($T_c < T < 4 T_c$) and compare it to the free-field calculation. The charm quark mass is determined by measuring the charmonium spectrum.