论文标题
希格斯玻色子腐烂了一对重型矢量Quarkonia
Higgs boson decays into a pair of heavy vector quarkonia
论文作者
论文摘要
在标准模型中，已经研究了罕见的希格斯腐烂成一对重型矢量夸克尼亚，$ h \ to vv $（$ v = j/ψ$，$υ$等）。与过去的文献不同，这些衰减被认为仅由纵向极化的最终状态主导，我们还包括过渡，这些过渡通过$ h \toγ^*γ^*γ^*γ^*$/$ h \ toVγ^*$，然后由$γ^*\ to V $。通过这些方式，最终的矢量Quarkonia主要横向极化。但是，我们的计算表明，这些过渡可能会导致对衰减率的重大贡献，尤其是对于夏尔米姆最终状态。这些过程的总分支比率预计为$ 10^{ - 10} $，远低于当前实验上限。希望对未来的高精度实验设施中这些非常罕见的衰减的实验研究可能很有趣，既可以测试标准模型又寻找新的物理情况。
Rare Higgs decays into a pair of heavy vector quarkonia, $h\to VV$ ($V=J/Ψ$, $Υ$ etc.), have been investigated in the standard model. Different from the past literature in which these decays are thought to be only dominated by the longitudinally polarized final states, we also include the transitions, which proceed through $h\to γ^*γ^*$/$h\to Vγ^*$, followed by $γ^*\to V$. The final vector quarkonia via these ways are dominantly transversely polarized. Our calculation however shows that these transitions could lead to significant contributions to the decay rate, especially for the charmonium final states. The total branching ratios of these processes are predicted to be around $10^{-10}$, far below the current experimental upper bounds. Hopefully, experimental studies of these very rare decays in future high-precision experimental facilities might be interesting both to test the standard model and to look for new physics scenarios.
