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arXiv 1509.04082hep-lathep-ph
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有限体积和部分猝灭类QCD有效场论

Finite Volume and Partially Quenched QCD-like Effective Field Theories

Johan Bijnens, Thomas Rössler

摘要:

在有效场论下,计算了三种类QCD手征对称性破缺模式$SU(N_F)\times SU(N_F)\to SU(N_F)_V$、$SU(N_F)\to SO(N_F)$和$SU(2N_F)\to Sp(2 N_F)$的介子质量、衰变常数和夸克-反夸克真空期望值.我们扩展了以前的两个循环的工作,包括部分淬火和有限体积的影响。计算已使用夸克流技术。我们重现了已知的无限体积的结果在未淬火的情况下。分析结果见补充材料。最后给出了一些数值结果的例子。所有情况下的数值程序都包含在CHIRON软件包的0.54版本中。这项工作的目的是在晶格外推到零质量的QCD和强相互作用的希格斯扇区晶格计算的使用。

英文摘要:

We present a calculation of the meson masses, decay constants and quark-antiquark vacuum expectation value for the three generic QCD-like chiral symmetry breaking patterns $SU(N_F)\times SU(N_F)\to SU(N_F)_V$, $SU(N_F)\to SO(N_F)$ and $SU(2N_F)\to Sp(2 N_F)$ in the effective field theory for these cases. We extend the previous two-loop work to include effects of partial quenching and finite volume. The calculation has been performed using the quark flow technique. We reproduce the known infinite volume results in the unquenched case. The analytical results can be found in the supplementary material. Some examples of numerical results are given. The numerical programs for all cases are included in version 0.54 of the CHIRON package. The purpose of this work is the use in lattice extrapolations to zero mass for QCD-like and strongly interacting Higgs sector lattice calculations.

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