论文标题
Grimus-Neufeld模型中的盒子增强了充电的Lepton风味
Box enhanced Charged Lepton Flavor Violation in the Grimus-Neufeld model
论文作者
论文摘要
在Grimus-Neufeld模型（GNM）中，来自扩展的Higgs部门的中微子质量产生导致违反带电的Lepton风味（CLFV）过程的边界。在这里，我们通过将参数空间扩展到Pontecorvo-Maki-Nakagawa-Sakata矩阵和更重的Higgs玻色子群众的范围。显示三体CLFV衰减在大型质量区域有显着贡献，因为盒子相对增强了光子图。这与之前研究的较小的质量区域相反，在该区域中，两体衰减严格限制了参数空间。显示Majorana阶段在一个数量级内改变限制。假定微小的Seesaw量表，这使得GNM的CLFV衰变与Scotogenic模型和Scoto-Seesaw模型相似。
In the Grimus-Neufeld model (GNM) the neutrino mass generation from an extended Higgs sector leads to bounds from Charged Lepton Flavour Violating (cLFV) processes. Here we update bounds from the previous study by extending the parameter space to nonvanishing Majorana phase of the Pontecorvo-Maki-Nakagawa-Sakata matrix and to heavier charged Higgs boson masses. Three-body cLFV decays are shown to contribute significantly in large mass regions, as the boxes are enhanced relatively to photonic diagrams. This is in contrast to the smaller mass region studied before, in which the two-body decays tightly restrict the parameter space. The Majorana phase is shown to change limits within one order of magnitude. The tiny seesaw scale is assumed, which makes the cLFV decays of the GNM to be similar to the scotogenic model and the scoto-seesaw models.
