论文标题

探测右撇子中微子偶极子操作员

Probing right-handed neutrinos dipole operators

论文作者

Barducci, Daniele, Bertuzzo, Enrico, Taoso, Marco, Toni, Claudio

论文摘要

我们考虑了标准模型的最小距离扩展,其中有两个右撇子单线费米子$ n_ {1,2} $,质量在GEV量表上,并由无菌状态之间的有效偶极子操作员增强。我们首先回顾了从固定目标和对撞机实验以及天体物理和宇宙学观察结果的有效相互作用的当前界限。然后,我们强调了测试decay $ n_2 \ to偶极子引起的n_1γ$的前景,该偶极构成的未来设施的目标是针对长期寿命的颗粒,例如阿努比斯,codex-b,facet,Facet,Faser 2,Mapp和Ship。

We consider the minimal see-saw extension of the Standard Model with two right-handed singlet fermions $N_{1,2}$ with mass at the GeV scale, augmented by an effective dipole operator between the sterile states. We firstly review current bounds on this effective interaction from fixed-target and collider experiments as well as from astrophysical and cosmological observations. We then highlight the prospects for testing the decay $N_2 \to N_1 γ$ induced by the dipole at future facilities targeting long lived particles such as ANUBIS, CODEX-b, FACET, FASER 2, MAPP and SHiP.

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