STUDY OF THE ELECTROMAGNETIC TRANSITIONS J/psi -> Pl(+)l(-) AND PROBE DARK PHOTON
Fu, JL; Li HB(李海波); Qin XS(秦小帅); Li, HB; Qin, XS; Yang, MZ
刊名MODERN PHYSICS LETTERS A
2012
卷号27期号:38页码:1250223
学科分类Physics
DOI10.1142/S0217732312502239
英文摘要We study the electromagnetic Dalitz decay modes of J / psi -> Pl(+)l(-) (P = pi(0), eta or eta'). In these decays, the lepton pairs are formed by internal conversion of an intermediate virtual photon with invariant mass m(l+l-). Study of the effective-mass spectrum of the l(+)l(-) will shed light on the dynamic transition form factor F-J/psi P (q(2)) (q(2) = m(l+l-)(2)), which characterizes the electromagnetic structure arising at the vertex of the transition J/ to pseudoscalars. We also discuss the direct productions of a GeV scale vector U boson in these processes J/psi PU (U -> l(+)l(-)). It is responsible for mediating a new U(1)d interaction, as recently exploited in the context of weakly interacting massive particle dark matter. In this paper, we firstly use the usual pole approximation for the form factor to estimate the decay rate of J / psi -> Pl(+)l(-) in the standard model. Then the reach of searching for the dark photon is estimated. We suggest that these Dalitz decays can be used to search for the light U boson in the BESIII experiment with a huge J/psi data set.
收录类别SCI
WOS记录号WOS:000311806200006
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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/311005/224772
专题中国科学院高能物理研究所_实验物理中心_期刊论文
中国科学院高能物理研究所_实验物理中心
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Fu, JL,Li HB,Qin XS,et al. STUDY OF THE ELECTROMAGNETIC TRANSITIONS J/psi -> Pl(+)l(-) AND PROBE DARK PHOTON[J]. MODERN PHYSICS LETTERS A,2012,27(38):1250223.
APA Fu, JL,李海波,秦小帅,Li, HB,Qin, XS,&Yang, MZ.(2012).STUDY OF THE ELECTROMAGNETIC TRANSITIONS J/psi -> Pl(+)l(-) AND PROBE DARK PHOTON.MODERN PHYSICS LETTERS A,27(38),1250223.
MLA Fu, JL,et al."STUDY OF THE ELECTROMAGNETIC TRANSITIONS J/psi -> Pl(+)l(-) AND PROBE DARK PHOTON".MODERN PHYSICS LETTERS A 27.38(2012):1250223.
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