Rare decays Λb → Λl+l− in the 331 models
Rare decays Λb → Λl+l− in the 331 models
复制标题
331 个模型中稀有衰变 Λb → Λl+l−
DOI：
10.1209/0295-5075/106/61001
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
C. Yue
中科院分区：
文献类型：
--
作者：
Fei Li;C. Yue
考虑到对331模型的限制，我们使用全QCD计算的形状因子来考虑稀有衰变。我们发现，331模型对某些观测量的贡献，如分支比、前后向不对称性和极化，主要来自新的中性规范玻色子。在很宽的参数空间范围内，它们可以对其中一些观测量产生显著的校正效果。
Taking into account the constraints on the 331 models, we consider the rare decays using the form factors calculated in full QCD. We find that the contributions of the 331 models to some observables, such as the branching ratios, forward-backward asymmetry and polarizations, mainly come from the new neutral gauge boson . In a wide range of parameter space, they can produce significant correction effects on some of these observables.