Distinguishing Dirac/Majorana sterile neutrinos at the LHC
Dib, CO; Kim, CS; Wang KC(王科臣); Zhang J(张珏); Wang, KC; Zhang, J
刊名PHYSICAL REVIEW D
2016
卷号94期号:1
DOI10.1103/PhysRevD.94.013005
通讯作者王科臣 ; 张珏
文章类型Article
英文摘要We study the purely leptonic decays of W-+/- -> e(+/-)e(+/-)mu(-/+)nu and mu +/-mu +/- e -/+nu produced at the LHC, induced by sterile neutrinos with mass m(N) below M-W in the intermediate state. Since the final state neutrino escapes detection, one cannot tell whether this process violates lepton number, which would indicate a Majorana character for the intermediate sterile neutrino. Our study shows that when the sterile neutrino mixings with electrons and muons are different enough, one can still discriminate between the Dirac and Majorana character of this intermediate neutrino by simply counting and comparing the above decay rates. After performing collider simulations and statistical analysis, we find that at the 14 TeV LHC with an integrated luminosity of 3000 fb(-1), for two benchmark scenarios m(N) = 20 and 50 GeV, at least a 3 sigma level of exclusion on the Dirac case can be achieved for disparities as mild as, e.g., vertical bar U-Ne vertical bar(2) < 0.7 vertical bar U-N mu vertical bar(2) or vertical bar U-N mu vertical bar(2) < 0.7 vertical bar U-Ne vertical bar(2), provided that vertical bar U-Ne vertical bar(2) and vertical bar U-N mu vertical bar(2) are both above similar to 2 x 10(-6).
关键词[WOS]LEPTON FLAVOR VIOLATION ; MAJORANA NEUTRINOS ; NUMBER ; DECAYS
语种英语
WOS记录号WOS:000379721900005
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被引频次:11[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/311005/260609
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Dib, CO,Kim, CS,Wang KC,et al. Distinguishing Dirac/Majorana sterile neutrinos at the LHC[J]. PHYSICAL REVIEW D,2016,94(1).
APA Dib, CO,Kim, CS,王科臣,张珏,Wang, KC,&Zhang, J.(2016).Distinguishing Dirac/Majorana sterile neutrinos at the LHC.PHYSICAL REVIEW D,94(1).
MLA Dib, CO,et al."Distinguishing Dirac/Majorana sterile neutrinos at the LHC".PHYSICAL REVIEW D 94.1(2016).
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