| Title |
Higgs masses and couplings in a general 2HDM with unitarity bounds / |
| Authors |
Jurčiukonis, Darius ; Lavoura, Luis |
| DOI |
10.22323/1.340.0334 |
| Full Text |
|
| Is Part of |
PoS: Proceedings of science: The 39th International Conference on High Energy Physics (ICHEP2018).. Trieste : Scuola Internazionale Superiore di Studi Avanzati (SISA). 2018, vol. 340, art. no. 334, p. 1-4.. eISSN 1824-8039 |
| Keywords [eng] |
Higgs ; cubic coupling ; quartic coupling ; 2HDM |
| Abstract [eng] |
We investigate the general two Higgs doublet model imposing both the unitarity conditions and the bounded-from-below conditions. Both types of conditions restrict the ranges of the parameters of the scalar potential. We study the model in the Higgs basis, i.e. in the basis for the scalar doublets where only one doublet has vacuum expectation value. We use the experimental bounds on the oblique parameter T, to produce scalar particles with masses and cubic and quartic couplings of the Higgs in agreement with the phenomenology. The numerical calculations show that the cubic coupling may be up to 1.6 times larger than in the Standard Model, but it may also be zero or even negative. The quartic coupling is always positive and may be up to four times larger than in the Standard Model. |
| Published |
Trieste : Scuola Internazionale Superiore di Studi Avanzati (SISA) |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2018 |
| CC license |
|
