论文标题
希格斯玻色子腐烂到charmonia通过$ c $ quark碎片化
Higgs boson decay to charmonia via $c$-quark fragmentation
论文作者
论文摘要
我们通过非占主导地位的QCD的框架中的魅力夸克碎片机制将希格斯玻色子的衰减分支分支为$ j/ψ$和$η_c$。衰减速率受魅力Quark Yukawa耦合的控制，与衰减$ h \至J/ψ+γ$不同，该衰减由$γ^*$ - $ J/ψ$混合主导。我们发现，衰减分支分数可以约为$ 2 \ times 10^{ - 5} $，for $ h \ to c {\ bar c}+j/ψ$，$ 6 \ times 10^{ - 5} $ for $ h \ for $ h \ for c {\ bar c}+η_c$。我们评论在高光度LHC上搜索Higgs Boson到$ J/ψ$过渡的观点，以测试魅力Quark Yukawa的耦合。
We calculate the decay branching fractions of the Higgs boson to $J/ψ$ and $η_c$ via the charm-quark fragmentation mechanism for the color-singlet and color-octet states in the framework of non-relativistic QCD. The decay rates are governed by the charm-quark Yukawa coupling, unlike the decay $H\to J/ψ+ γ$, which is dominated by the $γ^*$-$J/ψ$ mixing. We find that the decay branching fractions can be about $2 \times 10^{-5}$ for $H\to c{\bar c}+J/ψ$, and $6 \times 10^{-5}$ for $H\to c{\bar c}+η_c$. We comment on the perspective of searching for the Higgs boson to $J/ψ$ transition at the High-Luminosity LHC for testing the charm-quark Yukawa coupling.
