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arXiv 0711.2131hep-lathep-exhep-ph
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格点上的Dirac b夸克

Dirac b quark on the lattice

TWQCD Collaboration, Ting-Wai Chiu, Tung-Han Hsieh, Chao-Hsi Huang, Kenji Ogawa

摘要:

我们首次在具有精确手征对称性的格点量子色动力学中将b、c和s夸克作为狄拉克费米子处理。在1/a ~ 7.68 GeV的32^360格点上,计算了点到点夸克传播子,测量了夸克含量为b_bbar,c_bbar,s_bbar和c_cbar的介子的时间关联函数.最低躺介子的质量谱,赝标衰变常数,和b和c夸克质量的确定。

英文摘要:

We perform the first study of treating b, c, and s quarks as Dirac fermions in lattice QCD with exact chiral symmetry. On a 32^3 60 lattice with 1/a ~ 7.68 GeV, we compute point-to-point quark propagators, and measure the time-correlation functions for mesons with quark contents b_bbar, c_bbar, s_bbar, and c_cbar. The lowest-lying meson mass spectra, the pseudoscalar decay constants, and the b and c quark masses are determined.

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。

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