Bounds on the Higgs mass in the Standard Model and the Minimal Supersymmetric Standard Model
| dc.creator | Quirós, M. | |
| dc.date | 1995-09-26 | |
| dc.date.accessioned | 2026-07-07T03:58:15Z | |
| dc.date.available | 2026-07-07T03:58:15Z | |
| dc.description | Depending on the Higgs-boson and top-quark masses, $M_H$ and $M_t$, the effective potential of the {\bf Standard Model} can develop a non-standard minimum for values of the field much larger than the weak scale. In those cases the standard minimum becomes metastable and the possibility of decay to the non-standard one arises. Comparison of the decay rate to the non-standard minimum at finite (and zero) temperature with the corresponding expansion rate of the Universe allows to identify the region, in the ($M_H$, $M_t$) plane, where the Higgs field is sitting at the standard electroweak minimum. In the {\bf Minimal Supersymmetric Standard Model}, approximate analytical expressions for the Higgs mass spectrum and couplings are worked out, providing an excellent approximation to the numerical results which include all next-to-leading-log corrections. An appropriate treatment of squark decoupling allows to consider large values of the stop and/or sbottom mixing parameters and thus fix a reliable upper bound on the mass of the lightest CP-even Higgs boson mass. The discovery of the Higgs boson at LEP~2 might put an upper bound (below the Planck scale) on the scale of new physics $Λ$ and eventually disentangle between the Standard Model and the Minimal Supersymmetric Standard Model. | |
| dc.description | 13 pages, latex + sprocl + psfig.sty, 6 uuencoded figures. Based on talk given at the International Workshop on Elementary Particle Physics: Present and Future, Valencia, June 5 to 9, 1995 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9509395 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9509395 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/45733 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Bounds on the Higgs mass in the Standard Model and the Minimal Supersymmetric Standard Model | |
| dc.type | text |