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Two-photon decays of from lattice QCD
CLQCD Collaboration
2016
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号76期号:7
文章类型Article
摘要We present an exploratory lattice study for the two-photon decay of using twisted mass lattice QCD gauge configurations generated by the European Twisted Mass Collaboration. Two different lattice spacings of fm and fm are used in the study, both of which are of physical size of 2 fm. The decay widths are found to be 1.025(5) KeV for the coarser lattice and 1.062(5) KeV for the finer lattice, respectively, where the errors are purely statistical. A naive extrapolation toward the continuum limit yields KeV, which is smaller than the previous quenched result and most of the current experimental results. Possible reasons are discussed.
DOI10.1140/epjc/s10052-016-4212-8
关键词[WOS]TRANSITION FORM-FACTOR ; TWISTED MASS FERMIONS ; GAMMA-GAMMA-ASTERISK ; RADIATIVE TRANSITIONS ; LIGHT QUARKS ; BELLE
语种英语
WOS记录号WOS:000379017200001
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260608
专题理论物理室
作者单位中国科学院高能物理研究所
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CLQCD Collaboration. Two-photon decays of from lattice QCD[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(7).
APA CLQCD Collaboration.(2016).Two-photon decays of from lattice QCD.EUROPEAN PHYSICAL JOURNAL C,76(7).
MLA CLQCD Collaboration."Two-photon decays of from lattice QCD".EUROPEAN PHYSICAL JOURNAL C 76.7(2016).
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