联合小规模的纤毛虫
Uniting low-scale leptogeneses
摘要：
在这项工作中，我们表明，以前被认为是不同的机制，涉及两个右手马约拉纳中微子的质量远低于大统一理论尺度- leptogenesis通过中微子振荡和共振leptogenesis重子不对称性的产生-实际上是统一的。我们发现，所观察到的重子不对称性可以产生的右手中微子质量高于$M_N \gtrsim 100$ MeV的所有实验允许的值。轻子生成在很宽的参数范围内都是有效的，包括两个右手中微子之间的质量分裂，如$ΔM_N/M_N \sim 0.1$，以及重中微子和轻中微子之间的混合角足够大，可以用于计划中的强度实验或未来的对撞机。
英文摘要：
In this work we demonstrate that what was previously considered as different mechanisms of baryon asymmetry generation involving two right-handed Majorana neutrinos with masses far below the GUT scale -- leptogenesis via neutrino oscillations and resonant leptogenesis -- are actually united. We show that the observed baryon asymmetry can be generated for all experimentally allowed values of the right-handed neutrino masses above $M_N \gtrsim 100$ MeV. Leptogenesis is effective in a broad range of the parameters, including mass splitting between two right-handed neutrinos as big as $ΔM_N/M_N \sim 0.1$, as well as mixing angles between the heavy and light neutrinos large enough to be accessible to planned intensity experiments or future colliders.
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