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arXiv 0806.4371hep-lathep-phnucl-th
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Breit标架中的味扭曲边界条件

Flavor Twisted Boundary Conditions in the Breit Frame

Fu-Jiun Jiang, Brian C. Tiburzi

摘要:

我们使用的手征微扰理论的推广占味扭曲边界条件的Breit框架的影响。两种轻味的相关框架是SU(6| 4)部分猝灭理论,其中额外价夸克的区别仅在于它们的边界条件。集中在π电磁形状因子,有限体积修正计算在下一个领先的手征展开,估计是小电流晶格。

英文摘要:

We use a generalization of chiral perturbation theory to account for the effects of flavor twisted boundary conditions in the Breit frame. The relevant framework for two light flavors is an SU(6|4) partially quenched theory, where the extra valence quarks differ only by their boundary conditions. Focusing on the pion electromagnetic form factor, finite volume corrections are calculated at next-to-leading order in the chiral expansion and are estimated to be small on current lattices.

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