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arXiv 0811.1257hep-lat
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动力学重叠费米子模拟的物理结果

Physics results from dynamical overlap fermion simulations

Shoji Hashimoto

摘要:

总结了JLQCD和TWQCD合作组在大尺度动力学重叠费米子模拟中得到的物理结果。数值模拟是在一个固定的全局拓扑扇区上进行的,通过修正有限体积效应,重建了θ真空中的物理结果,而拓扑磁化率的测量对修正有限体积效应至关重要.目前我们研究的物理应用包括手征凝聚体、π介子质量、衰变常数、形状因子、真空极化函数(矢量和轴矢量)和核子σ项的计算。

英文摘要:

I summarize the physics results obtained from large-scale dynamical overlap fermion simulations by the JLQCD and TWQCD collaborations. The numerical simulations are performed at a fixed global topological sector; the physics results in the theta-vacuum is reconstructed by correcting the finite volume effect, for which the measurement of the topological susceptibility is crucial. Physics applications we studied so far include a calculation of chiral condensate, pion mass, decay constant, form factors, as well as (vector and axial-vector) vacuum polarization functions and nucleon sigma term.

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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