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题名: Phenomenology in the minimal cascade seesaw mechanism for neutrino masses
作者: Ding, R ;  Han, ZL ;  Liao, Y ;  Liu, HJ ;  Liu, JY
刊名: PHYSICAL REVIEW D
出版日期: 2014
卷号: 89, 期号:11, 页码:115024
关键词: MAJORANA NEUTRINOS ;  LEPTON NUMBER ;  ROOT-S=7 TEV ;  SEARCH ;  MODELS ;  SCALE ;  NONCONSERVATION ;  COLLISIONS ;  VIOLATION ;  MIXINGS
学科分类: Physics
DOI: 10.1103/PhysRevD.89.115024
通讯作者: Ding, R (reprint author), Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China.
部门归属: [Ding, Ran ;  Han, Zhi-Long ;  Liao, Yi ;  Liu, Hong-Jun] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China ;  [Liu, Ji-Yuan] Tianjin Univ Technol, Coll Sci, Tianjin 300384, Peoples R China ;  [Liao, Yi] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
英文摘要: We make a comprehensive analysis of the phenomenology in the minimal version of the cascade seesaw mechanism for tiny neutrino masses. The seesaw mechanism induces, at tree level, a neutrino mass operator at dimension nine by introducing a quadruple scalar Sigma of hypercharge unity and a quintuple fermion S of hypercharge zero. We work in a framework that handles the complicated Yukawa couplings without losing generality. All mixing matrices are essentially expressed in terms of the vacuum expectation value of the quadruple scalar upsilon(Phi), a free complex parameter t, and known neutrino parameters. We show that the lowenergy lepton- flavor- violating transitions of the charged leptons set strong constraints on the free parameters. The constraints have a significant impact on collider physics and are incorporated in our signal analysis at the LHC. We investigate the signatures of new particles by surveying potentially important channels. We find that the 4j2l +/- signal is the most important for the detection of scalars, and the 2l +/- 2l +/- 2j, 3l +/- l +/- 2j, and 3l +/- 2l +/-_ ET signals are quite promising for the fermions.
资助者: [NSFC-11025525]; [NSFC-11205113]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000338632900003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15731
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Ding, R,Han, ZL,Liao, Y,et al. Phenomenology in the minimal cascade seesaw mechanism for neutrino masses[J]. PHYSICAL REVIEW D,2014,89(11):115024.
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