论文标题

锯齿门户中的最小风味违反

Minimal flavor violation in the see-saw portal

论文作者

Barducci, Daniele, Bertuzzo, Enrico, Caputo, Andrea, Hernandez, Pilar

论文摘要

我们考虑了具有两个单元元素的标准模型的扩展,具有质量在电动范围内,通过锯齿机制诱导中微子质量,再加上更高规模的通用新物理部门,$λ$。我们将最小风味(MFV)原理应用于相应的有效场理论($ν$ smeft)在能量尺度上有效的$ e \llλ$。我们确定了在可纠正的水平上违反Lepton风味和Lepton数量的不可约的来源,并应用MFVAnsätz来得出$ν$ SMEFT运营商的Wilson系数的缩放,高于SIND尺寸。我们强调了这一假设在异国情调衰减的速率,重中微子的衰减长度以及目前和未来山脉的生产模式中最重要的现象学后果。我们还评论可能的天体物理含义。

We consider an extension of the Standard Model with two singlet leptons, with masses in the electroweak range, that induce neutrino masses via the see-saw mechanism, plus a generic new physics sector at a higher scale, $Λ$. We apply the minimal flavor violation (MFV) principle to the corresponding Effective Field Theory ($ν$SMEFT) valid at energy scales $E \ll Λ$. We identify the irreducible sources of lepton flavor and lepton number violation at the renormalizable level, and apply the MFV ansätz to derive the scaling of the Wilson coefficients of the $ν$SMEFT operators up to dimension six. We highlight the most important phenomenological consequences of this hypothesis in the rates for exotic Higgs decays, the decay length of the heavy neutrinos, and their production modes at present and future colliders. We also comment on possible astrophysical implications.

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