论文标题
手性方法中的混合现象学
Hybrid phenomenology in a chiral approach
论文作者
论文摘要
我们计算具有异国量子数字的（最轻的）混合非Et的质量和衰变，$ j^{pc} = 1^{ - +} $和其手性伙伴的非ET在扩展线性sigma模型（ELSM）的框架中，具有$ j^{pc} = 1^{+ - } $。作为输入，我们将$π_{1}^{hyb} =π_{1}（1600）$识别为低层混合。我们研究了满足手性对称性的相互作用术语。对于$π_{1}^{hyb}的问题，$最重要的衰减是$π_{1}^{hyb} \ rightArrow b_ {1}π，$ $π_{1}（1}（1600）\rightArlOWρπη，$ $ yb { $π_{1}^{hyb} \ rightArrow kk^{\ ast}（892）。$ decays days $π_{1}^{hyb} \rightArrowηπ$和$π__{1}^{1}^{hyb}^{hyb}^{hyb} \ rightarrow prime prime a prime a prime a prime at prime at prime at cher y cher y cher y cher y cher y cher：对称相互作用项明确破坏了轴向异常。对于两个混合非网络的所有其他成员（对于尚不存在实验候选者），我们报告了可能指导正在进行的和将来的实验的衰减比率。
We calculate masses and decays of the (lightest) hybrid nonet with exotic quantum numbers $J^{PC}=1^{-+}$ and the nonet of their chiral partners with $J^{PC}=1^{+-}$ in the framework of the extended Linear Sigma Model (eLSM). As an input, we identify $π_{1}^{hyb}=π_{1}(1600)$ as a low-lying hybrid. We investigated interaction terms which fulfil chiral symmetry. For what concerns $π_{1}^{hyb},$ the most important decays are $π_{1}^{hyb}\rightarrow b_{1}π,$ $π_{1}(1600)\rightarrowρπη,$ $π_{1}^{hyb}% \rightarrowρπ,$ and $π_{1}^{hyb}\rightarrow KK^{\ast}(892).$ The decays $π_{1}^{hyb}\rightarrowηπ$ and $π_{1}^{hyb}\rightarrowη^{\prime }π$ are expected to be small but non-zero: they follow from a chirally symmetric interaction term that breaks explicitly the axial anomaly. For all the other members of the two hybrid nonets (for which no experimental candidates exist yet) we report decay ratios that may guide ongoing and future experiments.
