Two-photon decays of from lattice QCD

doi:http://dx.doi.org/10.1140/epjc/s10052-016-4212-8

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	Two-photon decays of from lattice QCD
	Chen, T ; Chen, Y ; Gong, M ; Lei, YH ; Li, N 2; Liu, C3,4 ; Liu, YB ; Liu, ZF ; Ma, JP; Qiu, WF
刊名	EUROPEAN PHYSICAL JOURNAL C
	2016
卷号	76 期号:7 页码:358
关键词	TRANSITION FORM-FACTOR TWISTED MASS FERMIONS GAMMA-GAMMA-ASTERISK RADIATIVE TRANSITIONS LIGHT QUARKS BELLE
DOI	http://dx.doi.org/10.1140/epjc/s10052-016-4212-8
英文摘要	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.
学科主题	Physics
语种	英语
资助机构	National Science Foundation of China (NSFC) [11505132, 11335001, 11275169, 11405178, 11575197] ; DFG ; NSFC [11261130311] ; National Basic Research Program of China (973 Program) [2015CB856700] ; CAS [2013013, 2011013] ; Scientific Research Program - Shaanxi Provincial Education Department [15JK1348] ; Natural Science Basic Research Plan in Shaanxi Province of China [2016JQ1009]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23384]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Xian Technol Univ, Sch Sci, Xian 710032, Peoples R China 4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 5.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China 6.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 7.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 8.Zhejiang Univ, Dept Phys, Hangzhou 311027, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Chen, T,Chen, Y,Gong, M,et al. Two-photon decays of from lattice QCD[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(7):358.
APA	Chen, T.,Chen, Y.,Gong, M.,Lei, YH.,Li, N.,...&Zhang, JB.(2016).Two-photon decays of from lattice QCD.EUROPEAN PHYSICAL JOURNAL C,76(7),358.
MLA	Chen, T,et al."Two-photon decays of from lattice QCD".EUROPEAN PHYSICAL JOURNAL C 76.7(2016):358.