论文标题
在充电Lepton违规实验中的低尺度诱导生成测试
Tests of Low-Scale Leptogenesis in Charged Lepton Flavour Violation Experiments
论文作者
论文摘要
我们考虑了基于I SeeSAW场景的低规度瘦素发生的低能测试，该方案具有三个右手的Singlet Neutminos $ν_{l R r} $。在这种情况下，准级化的质量生成可能会成功地分解质量重，大量重量中微子$ n_ {1,2,3} $，$ m_ {1,2,3} \ cong m $，$ | m_j -i | m_i | \ m_i | \ ll m $，$ i \ neq i \ neq j = 1,2,3 $ sim sim sim sim $ sim $ sim $ sim $ sim sim $ semes neprino masses $ heake $ hebime $ heys $ hebimes $ he o f 10^5）$ gev和$ n_j $充电的当前和中性当前弱交互耦合，大至$ \ mathcal {o}（10^{ - 2}）$。我们从低能实验的现有数据中得出了对相应的瘦素发生参数空间的约束，包括对$μ\ rightarroweγ$衰减的实验的限制以及$μ-e $ $ $ $ $ $ $ $ $的转换。 We show also that the planned and upcoming experiments on charged lepton flavour violation with $μ^\pm$, MEG II on the $μ\rightarrow eγ$ decay, Mu3e on $μ\rightarrow eee$ decay, Mu2e and COMET on $μ- e$ conversion in aluminium and PRISM/PRIME on $μ- e$ conversion in titanium, can probe significant region of the生存的静脉生成参数空间，因此具有发现的潜力。 $τ\至EEE（μμμ）$和$τ\至E（μ）γ$衰减（例如Belle II）的实验也可以探测一部分瘦素发生参数空间，尽管相对较小。
We consider low-energy tests of low-scale leptogenesis based on the type I seesaw scenario with three right-handed singlet neutrinos $ν_{l R}$. In this scenario, successful leptogenesis is possible for quasi-degenerate in mass heavy Majorana neutrinos $N_{1,2,3}$, $M_{1,2,3}\cong M$, $|M_j - M_i|\ll M$, $i\neq j = 1,2,3$, heavy Majorana neutrino masses $M \sim (0.05 - 5\times 10^5)$ GeV, and $N_j$ charged current and neutral current weak interaction couplings as large as $\mathcal{O}(10^{-2})$. We derive the constraints on the corresponding leptogenesis parameter space from the existing data from low-energy experiments, including the limits from the experiments on $μ\rightarrow e γ$ decay and on the rate of $μ- e$ conversion in gold. We show also that the planned and upcoming experiments on charged lepton flavour violation with $μ^\pm$, MEG II on the $μ\rightarrow eγ$ decay, Mu3e on $μ\rightarrow eee$ decay, Mu2e and COMET on $μ- e$ conversion in aluminium and PRISM/PRIME on $μ- e$ conversion in titanium, can probe significant region of the viable leptogenesis parameter space, and thus have a potential for a discovery. Experiments on $τ\to eee(μμμ)$ and $τ\to e(μ)γ$ decays (e.g., BELLE II) also can probe a part of the leptogenesis parameter space, although a relatively small one.
