TY  - JOUR
AU  - Escudero, M.
AU  - Rius, N.
AU  - Sanz, V.
PY  - 2017
DA  - 2017//
TI  - Sterile neutrino portal to Dark Matter I: the U(1)(B-L) case
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 045
EP  - 27pp
VL  - 02
IS  - 2
PB  - Springer
KW  - Beyond Standard Model
KW  - Neutrino Physics
AB  - In this paper we explore the possibility that the sterile neutrino and Dark Matter sectors in the Universe have a common origin. We study the consequences of this assumption in the simple case of coupling the dark sector to the Standard Model via a global U(1)(B-L), broken down spontaneously by a dark scalar. This dark scalar provides masses to the dark fermions and communicates with the Higgs via a Higgs portal coupling. We find an interesting interplay between Dark Matter annihilation to dark scalars – the CP-even that mixes with the Higgs and the CP-odd which becomes a Goldstone boson, the Majoron and heavy neutrinos, as well as collider probes via the coupling to the Higgs. Moreover, Dark Matter annihilation into sterile neutrinos and its subsequent decay to gauge bosons and quarks, charged leptons or neutrinos lead to indirect detection signatures which are close to current bounds on the gamma ray flux from the galactic center and dwarf galaxies.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1606.01258
UR  - https://doi.org/10.1007/JHEP02(2017)045
DO  - 10.1007/JHEP02(2017)045
LA  - English
N1  - WOS:000394747600008
ID  - Escudero_etal2017
ER  -