Neutrino lines from DM decay induced by high-scale seesaw interactions

Journal of High Energy Physics

Rupert Coy¹  Thomas Hambye¹ 

[1] Service de Physique Théorique, Université Libre de Bruxelles, Boulevard du Triomphe, CP225, 1050, Brussels, Belgium;

关键词: Beyond Standard Model;    Cosmology of Theories beyond the SM;    Gauge Symmetry;    Neutrino Physics;   

DOI  :  10.1007/JHEP05(2021)101

来源: Springer

【 摘 要 】

If the stability of the dark matter (DM) particle is due to an accidental symmetry, nothing prevents UV physics from destabilising it by inducing DM decays suppressed by powers of the UV scale. The seesaw physics, presumably at the origin of neutrino mass, could induce such a decay. We show that if the seesaw scale lies around the usual Weinberg operator scale, the induced DM decay could generically lead to neutrino lines whose intensity is of the order of the present sensitivity of neutrino telescopes. We illustrate this possibility with models in which the DM is made of the gauge boson(s) of an abelian or non-abelian gauge symmetry.

【 授权许可】

CC BY