Leptogenesis by curvature coupling of heavy neutrinos
Leptogenesis by curvature coupling of heavy neutrinos
复制标题
重中微子曲率耦合的轻子发生
DOI：
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复制
发表时间：
2011
期刊：
影响因子：
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通讯作者：
S. Mohanty
中科院分区：
文献类型：
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作者：
G. Lambiase;S. Mohanty
我们引入了里奇曲率与重右手中微子之间的CP违反耦合。这就把左向重中微子和右向重中微子的马约拉纳质量分开了。当重中微子衰变时，它们的衰变速率不同于左手性和右手性轻中微子。时变的非零里奇曲率可以引起净轻子不对称。辐射时代非零曲率的来源是原始场的量子涨落。
We introduce a CP violating coupling between the Ricci curvature and the heavy right handed neutrinos. This splits the Majorana masses of the left and the right handed heavy neutrinos. When the heavy neutrinos decay, their decay rates are different into left and right chirality light neutrinos. A time varying non-zero Ricci curvature can give rise to a net lepton asymmetry. The source of a non-zero curvature in a radiation era is the quantum fluctations of primordial fields.