论文标题
双重重baryon $ξ_{bc} $的独家衰减
Exclusive Decays of the Doubly Heavy Baryon $Ξ_{bc}$
论文作者
论文摘要
$ξ_{bc}^+$的独家衰减，带有光中的生产，$ξ_{bc}^+\toξ_{cc}^{++} \ Mathcal {r} $。在分解模型的框架中，所考虑的反应的矩阵元素被写成$ξ_{bc} \toξ_{cc} w $和$ w \ to \ mathcal {r} $ transition amplitudes的产物。结果，对这些衰减的理论和实验研究使我们能够测试重夸克的物理学。 提出的是这些反应的分支部分，以及光系统不变质量和其他运动变量的分布。我们的计算表明，所考虑的反应的概率足够高，因此提出的结果可以帮助观察但看不见的$ξ_{bc} $ baryon。
Exclusive decays of the $Ξ_{bc}^+$ with light mesons production, $Ξ_{bc}^+\toΞ_{cc}^{++}\mathcal{R}$ are analyzed. In the framework of the factorization model the matrix elements of the considered reactions are written as a product of $Ξ_{bc}\toΞ_{cc}W$ and $W\to\mathcal{R}$ transition amplitudes. As a result theoretical and experimental investigation of these decays allow us to test the physics of heavy and light quarks' sectors. Presented are the branching fractions of these reactions, as well as the distributions over the invariant mass of the light system and some other kinematical variables. Our calculations show that the probabilities of the considered reactions are high enough, so presented results could help with observation of yet unseen $Ξ_{bc}$ baryon.
