论文标题
精确统一和肠道尺度上的暗物质超对称性
Precision unification and Higgsino dark matter in GUT scale supersymmetry
论文作者
论文摘要
即使抑制了与电子量表的自然性相关的问题，在具有分裂或高尺度超对称性的最小模型中，Higgs质量和Electroweak真空的稳定性也不允许任意大型超对称性量表，$ M_S $。我们表明，如果$ m_s $下方的理论包含Higgs Doublet，一对Tev Scale Higgsino，并且除了标准模型粒子外，可以将$ m_s $提升到肠量表。 Wino和Gluino在$ {\ cal O}（100）以下的存在导致量规耦合的精确统一，这与质子寿命的当前限制一致。在这个规模上，Wino将Higgsino作为伪DIRAC暗物质，反过来避免了直接检测实验的现有约束。 Bino质量尺度必须为$ \ gtrsim 10^{10} $ gev，以获取观察到的希格斯质量，以尊重当前收费的希格斯质量的限制。该框架预测，$ 1 \ lyssim \tanβ\ lyssim 2.2 $和$τ[p \ to e^+\，π^0] <7 \ times 10^{35} $年，几乎与其他参数的值无关。 Electroweak真空被发现是稳定或可稳定的。基础框架提供了一个可行的超对称大统一理论的可行的子量表理论的示例，其中超对称性和统一的量规对称性在共同的尺度上被打破。
Even if the concerns related to the naturalness of the electroweak scale are repressed, the Higgs mass and stability of the electroweak vacuum do not allow arbitrarily large supersymmetry breaking scale, $M_S$, in the minimal models with split or high-scale supersymmetry. We show that $M_S$ can be raised to the GUT scale if the theory below $M_S$ contains a Higgs doublet, a pair of TeV scale Higgsino and widely separated gauginos in addition to the Standard Model particles. The presence of wino and gluino below ${\cal O}(100)$ TeV leads to precision unification of the gauge couplings consistent with the current limits on the proton lifetime. Wino, at this scale, renders the Higgsino as pseudo-Dirac dark matter which in turn evades the existing constraints from the direct detection experiments. Bino mass scale is required to be $\gtrsim 10^{10}$ GeV to get the observed Higgs mass respecting the current limit on the charged Higgs mass. The framework predicts, $1 \lesssim \tanβ\lesssim 2.2$ and $τ[p\to e^+\, π^0] < 7 \times 10^{35}$ years, almost independent of values of the other parameters. The electroweak vacuum is found to be stable or metastable. The underlying framework provides an example of a viable sub-GUT scale theory of supersymmetric grand unified theory in which supersymmetry and unified gauge symmetry are broken at a common scale.
