Realistic Dirac leptogenesis

被引:107
作者
Murayama, H [1 ]
Pierce, A
机构
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[2] Lawrence Berkeley Natl Lab, Theoret Phys Grp, Berkeley, CA 94720 USA
关键词
D O I
10.1103/PhysRevLett.89.271601
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a model of leptogenesis that preserves lepton number. The model maintains the important feature of more traditional leptogenesis scenarios: The decaying particles that provide the CP violation necessary for baryogenesis also provide the explanation for the smallness of the neutrino Yukawa couplings. This model clearly demonstrates that, contrary to conventional wisdom, neutrinos need not be Majorana in nature in order to help explain the baryon asymmetry of the universe.
引用
收藏
页码:271601 / 271601
页数:4
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