论文标题
中子和重夸克的电动偶极矩，cp违反$ u（1）_x $ ssm
Electric dipole moments of neutron and heavy quarks c, t in CP violating $U(1)_X$SSM
论文作者
论文摘要
我们研究和分析了中子和重夸克C，T的电偶极矩（EDM），以CP侵入（CPV）超对称U（1）扩展称为$ u（1）_x $ ssm的标准模型的扩展，其本地量规组为$ u（1）_x \ times su（1）_x \ times su（3）_c \ times _c $ $ \ $ \ $ \ tieres u（1）一个循环图和温伯格操作员的贡献被考虑在最小超对称标准模型（MSSM）之外的新引入的CPV阶段（非零）。我们的数值结果表明，在$ u（1）_x $ ssm中，中子EDM可能小于其实验上限$ 1.8 \ times10^{ - 26} $ e $ e $ \ cdot $ cm，而没有小CPV阶段。重型夸克C和T的EDM的幅度可以达到$ 10^{ - 24} $ e $ \ cdot $ cm。和$ 10^{-22} $ e $ \ cdot $ cm。这有利于对CPV的研究。
We study and analyze the electric dipole moments (EDMs) of neutron and heavy quarks c, t in a CP-violating (CPV) supersymmetric U(1) extension of the standard model called $U(1)_X$SSM, whose local gauge group is $U(1)_X\times SU(3)_C\times SU(2)_L \times U(1)_Y$. The contributions from the one loop diagrams and the Weinberg operators are taken into account with the new introduced CPV phases beyond the minimum supersymmetric standard model(MSSM) being non-zero. Our numerical results show that in $U(1)_X$SSM the neutron EDM can be smaller than its experimental upper bound $1.8\times10^{-26}$ e$\cdot$cm without a small CPV phase. The magnitudes of EDMs of heavy quarks c and t can reach $10^{-24}$ e$\cdot$cm. and $10^{-22}$ e$\cdot$cm respectively. This is favorable to the study of CPV.
