论文标题
浓缩味的HADRONIC弱衰减的魅力和底部的重子：更新
Heavy-Flavor-Conserving Hadronic Weak Decays of Charmed and Bottom Baryons: an Update
论文作者
论文摘要
本文是对先前作品的更新，标题为````重型降级的强烈的弱弱衰变''和底部的baryons''。我们通过删除袋子的质量动作来改善袋子波的功能。现在，所有的baryon矩阵元素都在相同的框架下介绍了较大的竞选元素。先前的分支分支，$ξ_c^0 \toλ_c^+π^ - $和$ξ_b^ - \ \λ^0_bπ^ - $都与当前的实验结果一致。 （13.8 \ pm 1.4）\ times 10^{ - 3} $，$ {\ cal b}（ξ_b^0 \toλ^0_bπ^0）=（2.6 \ pm 0.3）\ times 10^{ - 3} $，3} $，$ {\ cal b}（\ cal b}（\ cal _c^0 \ pm pm pm^to pm pm^to \ to pm pm^to \ to p^to \ to p^to \ to pm pm^\ to pm^to \ to p^to \ to pm pm） 0.2）\ times 10^{ - 3} $和$ {\ cal b}（ω_c^0 \ toξ_c^0π^0）=（1.1 \ pm 0.1）\ times 10^{ - 3} $。
This paper serves as an update of the previous work entitled ``Heavy-Flavor-Conserving Hadronic Weak Decays of Charmed and Bottom Baryons". We make an improvement on the bag wave functions by removing the center-of-mass motion of the bag. All the baryon matrix elements are now calculated under the same framework without introducing new parameters. The matrix elements of 4-quark operators are found to be nearly twice larger than the previous ones. The calculated branching fractions of $ Ξ_c ^0 \to Λ_c ^+π^-$ and $Ξ_b^- \to Λ^0_b π^-$ are both in agreement with current experimental results. For the yet-to-be-measured heavy-flavor-conserving decays, we find ${\cal B}( Ξ_c ^+ \to Λ_c ^+π^0) = (13.8 \pm 1.4)\times 10^{-3}$, ${\cal B}( Ξ_b^0 \to Λ^0_b π^0) = (2.6 \pm 0.3)\times 10^{-3}$, ${\cal B}( Ω_c ^0 \to Ξ_c^+π^-) = (2.0 \pm 0.2)\times 10^{-3}$ and ${\cal B}( Ω_c ^0 \to Ξ_c^0π^0)= (1.1 \pm 0.1)\times 10^{-3}$. They are all accessible to LHCb, Belle and Belle II and can be tested in the near future.
