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arXiv 2104.12237hep-lathep-phhep-th
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手征规范理论中大质量费米子的激发态

Excited states of massive fermions in a chiral gauge theory

Jeff Greensite

摘要:

本文用数值方法表明,在左右手费米子分量带相反U(1)荷的手征U(1)规范Higgs理论中,围绕静态费米子的规范场和Higgs场的谱既包含一个基态,又包含至少一个稳定的激发态。为了绕过与格手征规范理论中的动力学费米子有关的困难,我们只考虑猝灭近似下的静态费米子源,在固定的格间距和耦合下,并沿着很久以前由斯密特和斯威夫特提出的线具有格作用。

英文摘要:

It is shown numerically, in a chiral U(1) gauge Higgs theory in which the left and right-handed fermion components have opposite U(1) charges, that the spectrum of gauge and Higgs fields surrounding a static fermion contains both a ground state and at least one stable excited state. To bypass the difficulties associated with dynamical fermions in a lattice chiral gauge theory we consider only static fermion sources in a quenched approximation, at fixed lattice spacing and couplings, and with a lattice action along the lines suggested long ago by Smit and Swift.

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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