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Lepton number violation in D meson decay
Dong HR(董海荣); Dong, HR; Feng, F; Li, HB; 李海波(实)
2015
发表期刊CHINESE PHYSICS C
卷号39期号:1页码:13101
通讯作者董海荣 ; 李海波(实)
摘要The lepton number violation (LNV) process can be induced by introducing a fourth generation heavy Majorana neutrino, which is coupled to the charged leptons of the Standard Model (SM). There have been many previous studies on the leptonic number violating decay processes with this mechanism. We follow the trend to study the process: D -> Kll pi with the same-sign dilepton final states. We restrict ourselves to certain neutrino mass regions, in which the heavy neutrino could be on-shell and the dominant contribution to the branching fraction comes from the resonance enhanced effect. Applying the narrow width approximation (NWA), we found that the upper limit for the branching fractions for D-0 -> K(-)l(+)l(+)pi(-) are generally at the order of 10(-12) to 10(-9), if we take the most stringent upper limit bound currently available in the literature for the mixing matrix elements. We also provide the constraints, which is competitive compared to the LNV B decays, on the mixing matrix element vertical bar V-eN vertical bar(2) based on the upper limit of D-0 -> K(-)e(+)e(-)pi(-) estimated from the Monte-Carlo (MC) study at BESIII. Although the constraints are worse than the ones from (0 nu beta beta) decay in the literature, the future experiment at the charm factory may yield more stringent constraints.
文章类型Article
关键词Majorana neutrino D meson decay lepton number violating mixing matrix element
学科领域Physics
DOI10.1088/1674-1137/39/1/013101
收录类别SCI ; CA
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000347762100002
引用统计
被引频次:6[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/311005/228187
专题实验物理中心
推荐引用方式
GB/T 7714
Dong HR,Dong, HR,Feng, F,et al. Lepton number violation in D meson decay[J]. CHINESE PHYSICS C,2015,39(1):13101.
APA 董海荣,Dong, HR,Feng, F,Li, HB,&李海波.(2015).Lepton number violation in D meson decay.CHINESE PHYSICS C,39(1),13101.
MLA 董海荣,et al."Lepton number violation in D meson decay".CHINESE PHYSICS C 39.1(2015):13101.
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