arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2209.06263hep-ph
收藏

辐射跷跷板模型中低能CP破坏、共振稀薄发生和无中微子双β衰变的联系

Connecting low-energy CP violation, resonant leptogenesis and neutrinoless double beta decay in a radiative seesaw model

Bikash Thapa, Ng. K. Francis

摘要:

本文研究了辐射跷跷板模型中的共振薄生现象。我们考虑的情况下,两个准简并的右手中微子实现共振leptogenesis,和CP破坏必要实现leptogenesis发生通过CP相位存在于中微子混合矩阵。一个数值分析是从目前的全球数据为三个中微子混合角和两个质量平方差的最佳拟合值。我们已经证明了重子不对称性的预测值如何依赖于狄拉克和马约拉纳CP相位。通过对质量参数的特殊选择,该模型更倾向于基于重子不对称性预测值的正常中微子质量等级。利用约束CP相,我们计算了与无中微子双β衰变有关的中微子有效质量。

英文摘要:

We present a study of resonant leptogenesis in a radiative seesaw model. We consider the case where two quasi-degenerate right-handed neutrinos realize resonant leptogenesis, and the CP violation necessary to achieve leptogenesis occurs through the CP phases present in the neutrino mixing matrix. A numerical analysis is performed by taking the best-fit values from the current global data for three neutrino mixing angles and two mass-squared differences. We have shown how the predicted value of baryon asymmetry depends on the Dirac and Majorana CP phases. With the particular choice for the mass parameters, this model prefers a normal hierarchy of neutrino masses based on the value of baryon asymmetry predicted. Using the constrained CP phases, we evaluate the effective neutrino mass, which is relevant to the neutrinoless double beta decay.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑