论文标题
$ su（3）$ temmetry for弱的HADRONIC衰变$ {\ bf b} _ {bc} $ baryons
$SU(3)$ Flavor Symmetry for Weak Hadronic Decays of ${\bf B}_{bc}$ Baryons
论文作者
论文摘要
重重C Quark或重型B Quark以及两个C Quark的重子。这些状态是在QCD中预期的，因此为该理论提供了测试。应该有双重美容的重子，也应该有一个有趣的可能性，即带有b-quark的baryons $ {\ bf b} _ {bc} $。这些状态尚未发现。 $ {\ bf b} _ {bc} $的主要衰减模式预计是从对其质谱的理论理解中是薄弱的过程。这些衰减模式可以提供有关这些重型baryons $ {\ bf b} _ {bc} $的关键信息。我们使用$ su（3）$风味对称性分析了$ {\ bf b} _ {bc} $的两个身体弱衰变。 $ c $和$ b $衰减中的任何一个都将诱使$ {\ bf b} _ {bc} $衰减。我们发现，允许衰变$ {\ bf b} _ {bc} \ to {\ bf b} _b + m $由于$ c \ to s u \ bar d $，对于探索至关重要。 LHC可能具有发现这种衰变的敏感性。其他$ {\ bf b} _ {bc} $衰减是由于$ b \ to c q'\ bar q $是子领先。分支比率之间的几个关系可用于测试$ su（3）$风味对称性。
Baryons with a heavy c-quark or a heavy b-quark and also two c-quarks have been discovered. These states are expected in QCD and therefore provide a test for the theory. There should be double beauty baryons, and also an intriguing possibility that baryons ${\bf B}_{bc}$ with a c-quark, a b-quark. These states are yet to be discovered. The main decay modes of ${\bf B}_{bc}$ are expected to be weak processes from theoretical understanding of their mass spectrum. These decay modes can provide crucial information about these heavy baryons ${\bf B}_{bc}$. We analyze two body hadronic weak decays for ${\bf B}_{bc}$ using $SU(3)$ flavor symmetry. Any one of the $c$ and $b$ decays will induce ${\bf B}_{bc}$ to decay. We find that the Cabibbo allowed decays ${\bf B}_{bc} \to {\bf B}_b + M$ due to $c \to s u \bar d$ can be crucial for exploration. The LHC may have the sensitivity to discover such decays. Other ${\bf B}_{bc}$ decays due to $b \to c q' \bar q$ are sub-leading. Several relations among branching ratios are obtained which can be used to test $SU(3)$ flavor symmetry.
