论文标题
激动的双重重型巴里昂生产通过$ w^+$ boson腐烂
Excited doubly heavy baryon production via $W^+$ boson decays
论文作者
论文摘要
在本文中，理论上在整个阶段通过$ W^+ \ to $ W^+ \ t to $ w^+ \ to到ξ_{cc}+ bar {c}+ bar {c}+ bar {c}+ bar {cc}+ bar { \ bar {b}+\ bar {s} $，在非递归QCD（NRQCD）的框架内。还给出了微分宽度$dγ/ds_ {12} $，$dγ/ds_ {23} $，$dγ/dcosθ_{12} $，以及$dγ/dγ/dcosθ_{13} $。除了对重子的普通S波贡献外，我们还专门计算了P Wave的贡献作为比较，即中级diquark的高激发状态，包括$ [^1p_1] $和$ [^3p_j] $（$ j = 0,1,2 $），这两种颜色是Antiplet State $ ant-triplet State $ \\ overline cobletlline cob and seact $ \ mathbf {6} $。它表明，P波的贡献大约比S波低一个阶。根据结果，我们可以期望在LHC，即$ 3.69 \ times10^5 $ $ $ $ $ $ $ $ $之一，$ 4.91 \ times10^4 $ $ $ $ $ $ $ξ_{bc} $每年每年事件。
In this paper, decay widths of the doubly heavy baryons ($Ξ_{cc} ~\text{and} ~Ξ_{bc}$) production are theoritically calculated in the whole phase space through $W^+ \to Ξ_{cc}+ \bar{c}+\bar{s}$ and $W^+ \to Ξ_{bc}+ \bar{b}+\bar{s}$, within the framework of nonrelativistic QCD (NRQCD). Differential widths $dΓ/ds_{12}$, $dΓ/ds_{23}$, $dΓ/dcosθ_{12}$, and $dΓ/dcosθ_{13}$ are also given. In addition to the ordinary S wave contributions for the baryons, we specifically calculate P wave contributions as a comparison, namely the high excited states of the intermediate diquark, including $[^1P_1]$ and $[^3P_J]$ (with $J=0,1,2$) in both color anti-triplet state $\overline{\mathbf{3}}$ and color sextuplet state $\mathbf{6}$. It shows that the contribution from P wave is about one order lower than S wave. According to the results, we can expect plentiful events produced at the LHC, i.e., $3.69\times10^5$ $Ξ_{cc}$ events and $4.91\times10^4$ $Ξ_{bc}$ events per year.
