论文标题
翻转$ u（1）$扩展标准型号和Majorana暗物质
Flipped $U(1)$ extended Standard Model and Majorana dark matter
论文作者
论文摘要
我们基于对称性$ su（3）_c \ times su（2）_l \ times u（times u（1）_ {y'} \ times u（times u（times u（times u（times u（times u（times u（times）u（times u（times u（times u（times）u（1），times u（1））u（1），我们提出了标准模型（SM）的一般性独立于标准模型（SM）的一般性扩展。在这种情况下，收费操作员是根据两个$ u（1）$量规符号的费用确定的。光中微子质量是通过I型Seesaw机构生成的，仅两个重型右手中微子通过$ u（1）_ {y'} \ times u（1）_x $对称性破坏。我们研究了模型参数的各种实验限制，并研究了右手中微子暗物质（DM）候选者的现象学，分配了$ Z_2 $ -ODD奇偶校验。我们发现，最重要的约束是观察到的DM遗物丰度，当前的LHC限制和SM中性仪表玻色子质量的歧义。
We propose a general flavor-independent extension of the Standard Model (SM) with the minimal particle content, based on the symmetry $SU(3)_C\times SU(2)_L\times U(1)_{Y'}\times U(1)_X\times Z_2$. In this scenario, the charge operator is identified in terms of the charges of two $U(1)$ gauge symmetries. The light neutrino masses are generated via Type-I seesaw mechanism only with two heavy right-handed neutrinos acquiring their Majorana masses through the $U(1)_{Y'}\times U(1)_X$ symmetry breaking. We study various experimental constraints on the parameters of the model and investigate the phenomenology of the right-handed neutrino dark matter (DM) candidate assigned a $Z_2$-odd parity. We find that the most important constraints are the observed DM relic abundance, the current LHC limits, and the ambiguity of the SM neutral gauge boson mass.
