论文标题
有效的中微子质量地板上的调味CP-Asymmemortry
Flavoured CP-asymmetry at the effective neutrino mass floor
论文作者
论文摘要
中微子双β衰减和瘦素发生都需要中微子是主要的。一旦指定了中微子质量产生的机制，就可以得出这两种现象之间的关系。我们首先通过将中微子双β衰减中的有效中微子质量最小化，相对于光中微子中的最小质量，从而得出了对主要阶段的约束。鉴于这些阶段，我们在$ m_ {1} $（重中微子的最轻的质量）上得出了一个下限，这是I型seesaw机制的框架，受到限制的约束，即适当的瘦素发生所需的CP不对称性大于$ 10^{ - 8} $。我们发现$ m_ {1} \ geq 10^{10} \，（10^{9}）$ GEV对于正常（倒置）层次结构。我们将分析扩展到一个重型中微子脱离的情况（两个右中微子模型）时。在这种情况下，我们发现$ m_ {1} \ geq 10^{10} \，（10^{11}）$ gev对于正常（倒置）层次结构。
Both neutrinoless double beta decay and leptogenesis require neutrinos to be Majorana fermions. A relation between these two phenomena can be derived once the mechanism of neutrino mass generation is specified. We first derive the constraints on the Majorana phases by minimising the effective neutrino mass in neutrinoless double beta decay with respect to the smallest mass among the light neutrinos. Given these phases, we derive a lower bound on $M_{1}$ (the mass of the lightest of the heavy neutrinos) in the framework of Type-I seesaw mechanism, subject to the constraint that the CP asymmetry required for adequate leptogenesis is larger than $10^{-8}$. We find that $M_{1} \geq 10^{10}\,(10^{9})$ GeV for the case of Normal (Inverted) hierarchy. We extend our analysis to the case when one of the heavy neutrinos decouples (two right handed neutrino models). In this case we find $M_{1} \geq 10^{10}\,(10^{11})$ GeV for the case of Normal (Inverted) hierarchy.
