论文标题
违反和保存左右对称模型的梅森衰减的干扰效应
Interference effect in lepton number violating and conserving meson decays for a left-right symmetric model
论文作者
论文摘要
我们研究干涉对违反〜（lnv）和Lepton数量保存〜（LNC）三体梅森衰落的影响$ m_1^{+} \ to l_i^{+} l_j {+} l_j^{\ pm}π^pm}π^{\ mp} $，在tev smorter spemmers primner spemsemmm左右或退化右手〜（rh）中微子。 LRSM包含三个RH Neutrinos和一个RH仪表玻色子。 RH Neutrinos的质量在$ M_N \ SIM $（MEV -几个GEV）范围内可以在Semi -Leptonic LNV和LNC Meson衰减中给出共振的增强。在这种情况下，只有一个Rh Neutrino在这些衰减中造成了贡献，则预测的新物理分支比例分支的LNV和LNC Meson衰减$ M_1^{+} \ to l_i^{+} {+} l_j^{+} l_j^{+}+} {+}+}π^{ - }π^{ - } $ and $ m_1^{+m_1^{+m_1^{+} {+l_} l_j^{ - }π^{+} $相等。我们发现，至少有两个RH Neutrinos促进了这一过程，LNV和LNC衰减率可能会有所不同。根据中微子混合角度和$ cp $违反阶段的不同，可以增强或抑制由重中微子介导的LNV和LNC衰减通道的分支比率，并且这两个速率的比率与统一的比率有所不同。
We study the effect of interference on the lepton number violating~(LNV) and lepton number conserving~(LNC) three-body meson decays $M_1^{+}\to l_i^{+} l_j^{\pm}π^{\mp}$, that arise in a TeV scale Left Right Symmetric model~(LRSM) with degenerate or nearly degenerate right handed~(RH) neutrinos. LRSM contains three RH neutrinos and a RH gauge boson. The RH neutrinos with masses in the range of $M_N \sim$ (MeV - few GeV) can give resonant enhancement in the semi-leptonic LNV and LNC meson decays. In the case, where only one RH neutrino contributes to these decays, the predicted new physics branching ratio of semi-leptonic LNV and LNC meson decays $M_1^{+}\to l_i^{+} l_j^{+}π^{-}$ and $M_1^{+}\to l_i^{+} l_j^{-}π^{+}$ are equal. We find that with at least two RH neutrinos contributing to the process, the LNV and LNC decay rates can differ. Depending on the neutrino mixing angles and $CP$ violating phases, the branching ratios of LNV and LNC decay channels mediated by the heavy neutrinos can be either enhanced or suppressed, and the ratio of these two rates can differ from unity.
