Probing Majorana phases and the neutrino mass spectrum in the Higgs triplet model at the CERN LHC

被引：122

作者：

Akeroyd, A. G. ^{[1
,2
]}

Aoki, Mayumi ^{[3
]}

Sugiyama, Hiroaki ^{[4
]}

机构：

[1] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[2] Natl Ctr Theoret Sci, Tainan, Taiwan

[3] Univ Tokyo, ICRR, Kashiwa, Chiba 2778582, Japan

[4] SISSA, I-34014 Trieste, Italy

来源：

PHYSICAL REVIEW D | 2008年 / 77卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.77.075010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Doubly charged Higgs bosons (H-+/-+/-) are a distinctive signature of the Higgs triplet model of neutrino mass generation. If H-+/-+/- is relatively light (m(H)(++)< 400 GeV), it will be produced copiously at the LHC, which could enable precise measurements of the branching ratios of the decay channels H-+/-+/--> l(i)(+/-)l(j)(+/-). Such branching ratios are determined solely by the neutrino mass matrix which allows the model to be tested at the LHC. We quantify the dependence of the leptonic branching ratios on the absolute neutrino mass and Majorana phases, and present the permitted values for the channels e(+/-)e(+/-), e(+/-)mu(+/-), and mu(+/-)mu(+/-). It is shown that precise measurements of these three branching ratios are sufficient to extract information on the neutrino mass spectrum and probe the presence of CP violation from Majorana phases.

引用

页数：12

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