Hiding neutrinoless double beta decay in the minimal seesaw model with the TM1 orμ-τreflection symmetry  

作　　者：Zhen-Hua Zhao Yan-Bin Sun Ying-Ke Lei 

机构地区：[1]Department of Physics,Liaoning Normal University,Dalian 116029,China [2]Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Communications in Theoretical Physics》2022年第11期98-105,共8页理论物理通讯（英文版）

基　　金：supported in part by the National Natural Science Foundation of China under Grant Nos.11605081,12142507 and 12147214;the Natural Science Foundation of the Liaoning Scientific Committee under grant NO.2022-MS-314。

摘　　要：In Asaka et al(2021 Phys.Rev.D 103,015014),Asaka,Ishida and Tanaka put forward an interesting possibility that the neutrinoless double beta decay can be hidden in the minimal seesaw model with the two right-handed neutrinos having a hierarchical mass structure:the lighter one is lighter enough than the typical Fermi-momentum scale of nuclei while the heavier one is sufficiently heavy to decouple from the neutrinoless double beta decay.Then,in the basis where the mass matrices of the charged leptons and right-handed neutrinos are diagonal,for some particular texture of the Dirac neutrino mass matrix M_(D),the neutrinoless double beta decay can be hidden.In this paper,on top of this specified model,we study the interesting scenario that M_(D)further obeys the TM1 symmetry orμ-τreflection symmetry which are well motivated by the experimental results for the neutrino mixing parameters.

关 键 词：neutrino mass neutrinoless double beta decay minimal seesaw model 

分 类 号：O572.321[理学—粒子物理与原子核物理]