论文标题
在单线双线场景中将伪dirac暗物质和辐射性中微子质量联系起来
Linking the pseudo-Dirac dark matter and radiative neutrino mass in a singlet doublet scenario
论文作者
论文摘要
我们在一个通用线程中，通过一对费米子（一个单曲线和一个双线）检查了标准模型的简单扩展，将暗物质问题与与几个令人兴奋的功能相关的中微子质量的较小性联系在一起。在存在一个小的裸露主要质量术语的情况下，单重手指带来了伪DIRAC暗物质，能够通过抑制由中性电流介导的暗物质an灭过程来避免强旋旋的直接检测。因此，双线和单线费米子之间的混合角允许的混合角范围大大增强。同一质量项在单线标量相关性中的存在也可以提高微小的质量，但非零质量辐射为轻度majorana中微子满足观察到的振荡数据。
We examine simple extension of the standard model with a pair of fermions, one singlet and a doublet, in a common thread linking the dark matter problem with the smallness of neutrino masses associated with several exciting features. In the presence of a small bare Majorana mass term, the singlet fermion brings in a pseudo-Dirac dark matter capable of evading the strong spin-independent direct detection bound by suppressing the dark matter annihilation processes mediated by the neutral current. In consequence, the allowed range of mixing angle between the doublet and the singlet fermions gets enhanced substantially. Presence of the same mass term in association of singlet scalars also elevates tiny but nonzero masses radiatively for light Majorana neutrino satisfying observed oscillation data.
