论文标题
BLMSSM中的标量中微子暗物质
Scalar neutrino dark matter in BLMSSM
论文作者
论文摘要
BLMSSM是最小超对称标准模型（MSSM）的扩展。它的本地量规组为$ su（3）_C \ times su（2）_l \ times u（1）_y \ times u（1）_b \ times u（1）u（1）_l $。假设最轻的标量中微子是暗物质候选者，我们研究了sneutrino散射核子的遗物密度和独立的旋转横截面。我们详细计算数值结果并找到合适的参数空间。数值讨论可以限制参数空间，并为暗物质研究提供参考。
BLMSSM is the extension of the minimal supersymmetric standard model(MSSM). Its local gauge group is $SU(3)_C \times SU(2)_L \times U(1)_Y \times U(1)_B \times U(1)_L$. Supposing the lightest scalar neutrino is dark matter candidate, we study the relic density and the spin independent cross section of sneutrino scattering off nucleon. We calculate the numerical results in detail and find suitable parameter space. The numerical discussion can confine the parameter space and provide a reference for dark matter research.
