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arXiv 0710.0910hep-lat
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含相对论重夸克action的动态2+1味畴壁费米子晶格的粲谱

Charm spectroscopy on dynamical 2+1 flavor domain wall fermion lattices with a relativistic heavy quark action

Min Li, Huey-Wen Lin

摘要:

我们提出了一个初步的计算的粲偶素光谱使用的动力学2+1味$24^3\times 64$域壁费米子晶格配置产生的RBC和UKQCD合作。我们使用相对论性重夸克作用量,通过与实验量匹配,非微扰地确定了3个参数。用$m_s=0.04$和$m_{res}=0.003$对质量从0.005到0.03的四种轻海夸克进行手征外推。我们可以通过其他方法来预测介子质量,假设晶格间距是已知的,或者使用这些量来计算晶格间距。

英文摘要:

We present a preliminary calculation of the charmonium spectrum using the dynamical 2+1 flavor $24^3\times 64$ domain wall fermion lattice configurations generated by the RBC and UKQCD collaborations. We use the relativistic heavy quark action with 3 parameters non-perturbatively determined by matching to experimental quantities. Chiral extrapolation is done on four light sea quark masses from 0.005 to 0.03, with $m_s=0.04$ and $m_{res}=0.003$. We can either predict meson masses assuming the lattice spacing is known from other methods, or calculate the lattice spacing using those quantities.

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