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arXiv 1205.6151hep-lathep-phhep-th
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格点量子色动力学中的手征对称性与最优畴壁费米子的剩余质量

Chiral Symmetry and the Residual Mass in Lattice QCD with the Optimal Domain-Wall Fermion

Yu-Chih Chen, Ting-Wai Chiu

摘要:

我们导出了具有畴壁费米子的格点量子色动力学的轴向沃德恒等式,并由此得到了剩余质量的公式(45)-(46),该公式可用于测量由于第五维有限扩张Ns引起的手征对称性破缺。此外,我们还得到了最优畴壁费米子下格点量子色动力学中剩余质量的一个上界。

英文摘要:

We derive the axial Ward identity for lattice QCD with domain-wall fermions, and from which we obtain a formula for the residual mass (45)-(46), that can be used to measure the chiral symmetry breaking due to the finite extension Ns in the fifth dimension. Furthermore, we obtain an upper bound for the residual mass in lattice QCD with the optimal domain-wall fermion.

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