| Title |
Vacuum stability conditions for new SU(2) multiplets |
| Authors |
Milagre, Andre ; Jurčiukonis, Darius ; Lavoura, Luis |
| DOI |
10.1093/ptep/ptaf105 |
| Full Text |
|
| Is Part of |
Progress of theoretical and experimental physics.. Oxford : Oxford University Press. 2025, vol. 2025, iss. 9, art. no. 093B01, p. [1-29].. eISSN 2050-3911 |
| Keywords [eng] |
multiplet ; scalars ; Standard Model ; bounded-from-below |
| Abstract [eng] |
We consider the addition to the Standard Model of a scalar SU(2) multiplet Δn with dimension n going from 1 to 6. The multiplet Δn is assumed to have null vacuum expectation value and an arbitrary (free) hypercharge. We determine the shape of the phase space for the new terms that appear in the scalar potential; we observe in particular that, in the case of a 6-plet, the phase space is slightly concave along one of its boundaries. We determine the bounded-from-below and vacuum stability conditions on the scalar potential for each value of n. |
| Published |
Oxford : Oxford University Press |
| Type |
Journal article |
| Language |
English |
| Publication date |
2025 |
| CC license |
|
