论文标题
使用SU（3）风味对称性研究辐射baryon腐烂
Studying Radiative Baryon Decays with the SU(3) Flavor Symmetry
论文作者
论文摘要
弱和电磁辐射的baryon衰变八八tet$ t_ {8} $，deuplet $ t_ {10} $，单个诱人的抗t_ {c3} $和sextet $ t_ {c6 {c6} $，单个重型抗triplet $ T_风味对称不可约的表示方法。我们分析了从单个夸克过渡$ q_1 \到q_2γ$和$ w $交换过渡的贡献，并发现在$ t_ {b3，b6，b6，b6，b6，b6} $弱辐射衰减中，振幅很容易与SU（3）风味对称性相关， t_ {8}γ$弱衰减，$ t_ {10} \ to t'_ {10}γ$弱衰减，$ t_ {10} \ to t_ {8}γ$电磁衰减。然而，在$ t_ {8} \ to t'_ {8}γ$和$ t_ {8} \ to t_ {10}γ$弱衰减中，由于$ t_ {8} $和$ W $ w $交易所贡献的Quark反相对的衰减，幅度关系有些复杂。分支比的预测$λ^{0} _b \至nγ$，$ξ^{ - } _ b \ toξ^ - γ$，$ξ^{ - } _ b \ t t至σ^-γ$，$γ$，$γ$，$γ$，$ξ^{0} $ξ^{0} _b \ toξ^0γ$，$ξ^{*} \ toξγ$，$σ^{*0} \ toσ^{0}γ$，$Δ^0 \ tonγ$和$δ^$和$δ^+\ topγ$。这项工作的结果可用于测试SU（3）在BESIII，LHCB和BELLE-II的未来实验的辐射重子衰减中的风味对称方法。
The weak and electromagnetic radiative baryon decays of octet $T_{8}$, decuplet $T_{10}$, single charmed anti-triplet $T_{c3}$ and sextet $T_{c6}$, single heavy bottomed anti-triplet $T_{b3}$ and sextet $T_{b6}$ are investigated by using SU(3) flavor symmetry irreducible representation approach. We analyze the contributions from a single quark transition $q_1\to q_2γ$ and $W$ exchange transitions, and find that the amplitudes could be easily related by SU(3) flavor symmetry in the $T_{b3,b6}$ weak radiative decays, $T_{c3,c6}$ weak radiative decays, $T_{10}\to T_{8}γ$ weak decays, $T_{10}\to T'_{10}γ$ weak decays and $T_{10}\to T_{8}γ$ electromagnetic decays. Nevertheless, the amplitude relations are a little complex in the $T_{8}\to T'_{8}γ$ and $T_{8}\to T_{10}γ$ weak decays due to quark antisymmetry in $T_{8}$ and $W$ exchange contributions. Predictions for branching ratios of $Λ^{0}_b\to nγ$, $Ξ^{-}_b\to Ξ^-γ$, $Ξ^{-}_b\to Σ^-γ$, $Ξ^{0}_b\to Σ^0γ$, $Ξ^{0}_b\to Λ^0γ$, $Ξ^{0}_b\to Ξ^0γ$, $Ξ^{*}\to Ξγ$, $Σ^{*0}\to Σ^{0}γ$, $Δ^0\to nγ$ and $Δ^+\to pγ$ are given. The results in this work can be used to test SU(3) flavor symmetry approach in the radiative baryon decays by the future experiments at BESIII, LHCb and Belle-II.
