Deviations from tribimaximal neutrino mixing in the type-II seesaw model and leptogenesis
Luo S(罗舒); Xing ZZ(邢志忠); Chan, AH; Fritzsch, H; Luo, S; Xing, ZZ
刊名PHYSICAL REVIEW D
2007
卷号76期号:7页码:73009
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.76.073009
通讯作者[Luo, Shu] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Chan, Aik Hui] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore ; [Fritzsch, Harald] Univ Munich, Sekt Phys, D-80333 Munich, Germany
文章类型Article
英文摘要Current experimental data allow the zero value for one neutrino mass, either m(1)=0 or m(3)=0. This observation implies that a realistic neutrino mass texture can be established by starting from the limit (a) m(1)=m(2)=0 and m(3)not equal 0 or (b) m(1)=m(2)not equal 0 and m(3)=0. In both cases, we may introduce a particular perturbation which ensures the resultant neutrino mixing matrix to be the tribimaximal mixing pattern or its viable variations with all entries being formed from small integers and their square roots. We find that it is natural to incorporate this kind of neutrino mass matrix in the minimal type-II seesaw model with only one heavy right-handed Majorana neutrino N in addition to the SU(2)(L) Higgs triplet Delta(L). We show that it is possible to account for the cosmological baryon number asymmetry in the m(3)=0 case via thermal leptogenesis, in which the one-loop vertex correction to N decays is mediated by Delta(L) and the CP-violating asymmetry of N decays is attributed to the electron flavor.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000250621200026
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240758
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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Luo S,Xing ZZ,Chan, AH,et al. Deviations from tribimaximal neutrino mixing in the type-II seesaw model and leptogenesis[J]. PHYSICAL REVIEW D,2007,76(7):73009.
APA 罗舒,邢志忠,Chan, AH,Fritzsch, H,Luo, S,&Xing, ZZ.(2007).Deviations from tribimaximal neutrino mixing in the type-II seesaw model and leptogenesis.PHYSICAL REVIEW D,76(7),73009.
MLA 罗舒,et al."Deviations from tribimaximal neutrino mixing in the type-II seesaw model and leptogenesis".PHYSICAL REVIEW D 76.7(2007):73009.
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