arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0909.1606hep-phnucl-th
收藏

手征U(3)xU(3)对称性破缺的主公式方法

Master formula approach to broken chiral U(3)xU(3) symmetry

Hiroyuki Kamano

摘要:

将Yamagishi和Zahed提出的手征对称性破缺的主公式方法推广到U_R(3)xU_L(3)群,其中适当地包含了U_A(1)反常和味对称破缺的影响:m_u \not = m_d \not = m_s.导出了胶子拓扑磁化率和π ^0,η,η ' -> gamma^(*)gamma^(*)衰变的新恒等式,它不依赖于任何非物理极限,而精确地体现了QCD中手征对称性破缺的结果.

英文摘要:

The master formula approach to chiral symmetry breaking proposed by Yamagishi and Zahed is extended to the U_R(3)xU_L(3) group, in which effects of the U_A(1) anomaly and the flavor symmetry breaking m_u \not= m_d \not= m_s are properly contained. New identities for the gluon topological susceptibility and pi^0, eta, eta' -> gamma^(*) gamma^(*) decays are derived, which exactly embody the consequence from broken chiral symmetry in QCD without relying on any unphysical limit.

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。

↑