论文标题
替代左右模型中的暗物质
Dark Matter in the Alternative Left Right Model
论文作者
论文摘要
替代左右模型是通常的左右对称模型的有吸引力的变化，因为它避免了改变风味的中性电流，因此允许模型中的其他Higgs玻色子具有光。我们在这里表明该模型通过引入$ r $ parity与超对称性相似的$ r $ parity自然预测了几个暗物质候选者，其中一些新的粒子很奇怪，而所有SM粒子甚至是奇数。暗物质候选者可以是费米子或骨气。我们对所有可能性进行了全面的调查。我们分析和限制了满足遗物密度，直接检测和间接检测边界的参数空间，并研究了观察LHC处的费莫尼克和玻色子暗物质信号的可能性。玻色子和费米子候选者都提供了有前途的信号，LHC中的第一个以300 fb $^{ - 1} $，第二个以较高的发光度为3000 fb $^{ - 1} $。来自玻色子候选人的信号表明存在异国情调的$ d^\ Prime $ Quarks，而费米米奇候选人则暗示存在带电的Higgs玻色子，所有这些都有TEV地区的群众。
The Alternative Left-Right Model is an attractive variation of the usual Left-Right Symmetric Model because it avoids flavour-changing neutral currents, thus allowing the additional Higgs bosons in the model to be light. We show here that the model predicts several dark matter candidates naturally, through introduction of an $R$-parity similar to the one in supersymmetry, under which some of the new particles are odd, while all the SM particles are even. Dark matter candidates can be fermionic or bosonic. We present a comprehensive investigation of all possibilities. We analyze and restrict the parameter space where relic density, direct and indirect detection bounds are satisfied, and investigate the possibility of observing fermionic and bosonic dark matter signals at the LHC. Both the bosonic and fermionic candidates provide promising signals, the first in LHC at 300 fb$^{-1}$, the second at higher luminosity, 3000 fb$^{-1}$. Signals from bosonic candidates are indicative of the presence of exotic $d^\prime$ quarks, while fermionic candidates imply the existence of charged Higgs bosons, all with masses in the TeV region.
