Gravitational leptogenesis
Gravitational leptogenesis
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引力轻子发生
DOI:
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发表时间:
2006
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影响因子:
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通讯作者:
S. Mohanty
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文献类型:
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作者:
Gaetano Lambiase;S. Mohanty
We introduce a dimension five CP violating coupling between the Ricci scalar and fermions. This operator splits the energy level between neutrinos and antineutrinos and can generate a lepton asymmetry in the radiation era if heavy Majorana neutrinos decouple at the GUT scale. This operator can also generate a lepton asymmetry during warm inflation if the light neutrinos have a Majorana mass which is observable in double beta decay experiments.