TY  - JOUR
AU  - Beniwal, A.
AU  - Herrero-Garcia, J.
AU  - Leerdam, N.
AU  - White, M.
AU  - Williams, A. G.
PY  - 2021
DA  - 2021//
TI  - The ScotoSinglet Model: a scalar singlet extension of the Scotogenic Model
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 136
EP  - 34pp
VL  - 06
IS  - 6
PB  - Springer
KW  - Beyond Standard Model
KW  - Higgs Physics
KW  - Neutrino Physics
AB  - The Scotogenic Model is one of the most minimal models to account for both neutrino masses and dark matter (DM). In this model, neutrino masses are generated at the one-loop level, and in principle, both the lightest fermion singlet and the lightest neutral component of the scalar doublet can be viable DM candidates. However, the correct DM relic abundance can only be obtained in somewhat small regions of the parameter space, as there are strong constraints stemming from lepton flavour violation, neutrino masses, electroweak precision tests and direct detection. For the case of scalar DM, a sufficiently large lepton-number-violating coupling is required, whereas for fermionic DM, coannihilations are typically necessary. In this work, we study how the new scalar singlet modifies the phenomenology of the Scotogenic Model, particularly in the case of scalar DM. We find that the new singlet modifies both the phenomenology of neutrino masses and scalar DM, and opens up a large portion of the parameter space of the original model.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2010.05937
UR  - https://doi.org/10.1007/JHEP06(2021)136
DO  - 10.1007/JHEP06(2021)136
LA  - English
N1  - WOS:000668611300001
ID  - Beniwal_etal2021
ER  -