| Title |
Decays of heavy scalars in the Grimus-Neufeld model |
| Authors |
Vitkus, Aurimas ; Draukšas, Simonas ; Gajdosik, Thomas |
| DOI |
10.3390/universe12070206 |
| Full Text |
|
| Is Part of |
Universe.. Basel : MDPI. 2026, vol. 12, iss. 7, art. no. 206, p. [1-18].. ISSN 2218-1997 |
| Keywords [eng] |
cosmology ; two Higgs doublets ; dark matter ; neutrinos |
| Abstract [eng] |
We consider an extension of the Standard Model by an additional Higgs doublet and a Majorana neutrino, which we call the Grimus–Neufeld Model (GNM). For certain parameter choices the GNM can be compared to the Inert Doublet Model (IDM), which has a scalar dark matter candidate. This motivates that the scalars of the GNM could possibly contribute to dark matter. To check this, we present the tree level two-body decays of the heavy scalars of the GNM and compute the lifetime of the pseudoscalar in the IDM limit. |
| Published |
Basel : MDPI |
| Type |
Journal article |
| Language |
English |
| Publication date |
2026 |
| CC license |
|
