Lepton flavor violation in the scotogenic model
Lepton flavor violation in the scotogenic model
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DOI：
10.1007/jhep01(2014)160
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发表时间：
2013-12
影响因子：
5.4
通讯作者：
Takashi Toma;A. Vicente
中科院分区：
文献类型：
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作者：
Takashi Toma;A. Vicente
我们研究了 Ma 提出的 scoogenic 模型中的轻子味破坏，其中中微子在 1 环能级获得非零质量。尽管在这个方向上存在一些工作，但它们主要集中在辐射衰变 ℓ α→ ℓ β γ 上。受涉及其他低能过程的有前途的新项目的推动，我们推导了原子核中 ℓ α→ 3 ℓ β 和 μ− e 转换的完整解析表达式，并数值研究了它们对现象学的影响。我们将证明这些过程实际上可以具有比 ℓ α→ ℓ β γ 更大的速率，从而提供更严格的约束和更好的实验视角。
We investigate lepton flavor violation in the scotogenic model proposed by Ma in which neutrinos acquire non-zero masses at the 1-loop level. Although some works exist in this direction, they have mainly focused on the radiative decay ℓ α→ ℓ β γ. Motivated by the promising new projects involving other low-energy processes, we derive complete analytical expressions for ℓ α→ 3 ℓ β and μ− e conversion in nuclei, and numerically study their impact on the phenomenology. We will show that these processes can actually have rates larger than the one for ℓ α→ ℓ β γ, thus providing more stringent constraints and better experimental perspectives.