Leptogenesis with TeV Scale WR

被引：3

作者：

Gu, Pei-Hong ^{[1
]}

Mohapatra, Rabindra N. ^{[2
,3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Phys & Astron, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[2] Univ Maryland, Maryland Ctr Fundamental Phys, College Pk, MD 20742 USA

[3] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW D | 2018年 / 97卷 / 07期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

BARYON-NUMBER NONCONSERVATION; LEFT-RIGHT SYMMETRY; STRONG CP PROBLEM; NEUTRINO MASS; MAJORANA NEUTRINOS; NON-CONSERVATION; LEPTON NUMBER; GAUGE-MODELS; STRONG P; VIOLATION;

D O I：

10.1103/PhysRevD.97.075014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Successful leptogenesis within the conventional TeV-scale left-right implementation of type-I seesaw has been shown to require that the mass of the right-handed W-R(+/-) boson should have a lower bound much above the reach of the Large Hadron Collider. This bound arises from the necessity to suppress the washout of lepton asymmetry due to W-R(+/-)-mediated Delta L not equal 0 processes. We show that in an alternative quark seesaw realization of left-right symmetry, the above bound can be avoided. Lepton asymmetry in this model is generated not via the usual right-handed neutrino decay but rather via the decay of new heavy scalars producing an asymmetry in the B - L carrying Higgs triplets responsible for type-II seesaw, whose decay leads to the lepton asymmetry.

引用

页数：8

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