论文标题

对违反味道的复杂的Lepton腐烂和干扰作用的外来粒子质量的限制

Constraints on exotic particle masses from flavor violating charged lepton decays and the role of interference

论文作者

Barela, Mario W., Montaño-Domínguez, J.

论文摘要

与标准模型紫外线完整,可重新分解的模型一起,通常假设一个或几个外来的颗粒。 $ c \!P $ - 中性和双重电荷标量是常见的,众所周知的示例,可以促成七种三体充电的Lepton味道违反腐烂。这组过程中每个分支比率的实验界限为新物理学提供了良好的测试,这些测试可以引起相关参数空间的强大约束。对于第三种粒子而言,这是特别正确的,与前两个粒子不同,它是可重新分析模型的罕见特征:双电荷载体bilepton。我们展示了这些纯粹的松性界限如何确实可以诱导相应的颗粒质量的相关排除区域,比文献中为替代风味的案例所考虑的要强,并研究干扰效应如何以非平凡的方式影响这些区域。

Together with any Beyond the Standard Model ultraviolet complete, renormalizable model, one or several exotic particles are usually hypothesized. $C\!P$-even neutral and doubly-charged scalars are common, well known examples which can contribute to the seven 3-body Charged Lepton Flavor Violating decays. The experimental bounds on each Branching Ratio within this set of processes provide a good test for new physics that can induce powerful constraints on relevant parameter spaces. This is specially true for a third species of particle which, unlike the previous two, is a rare feature of renormalizable models: a doubly charged vector bilepton. We show how these purely leptonic bounds can indeed induce relevant exclusion regions for the corresponding particles masses, stronger than what have been considered in the literature for the alternative flavor conserving case, and examine how interference effects can influence these regions in a non-trivial way.

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