Perturbative Unification and Higgs Boson Mass Bounds
| dc.creator | Babu, K. S. | |
| dc.creator | Gogoladze, Ilia | |
| dc.creator | Kolda, Christopher | |
| dc.date | 2004-10-06 | |
| dc.date | 2004-11-04 | |
| dc.date.accessioned | 2026-07-07T03:53:37Z | |
| dc.date.available | 2026-07-07T03:53:37Z | |
| dc.description | Supersymmetric extensions of the Standard Model generally give a theoretical upper limit on the lightest Higgs boson mass which may be uncomfortably close to the current experimental lower bound of $m_h$ > 114 GeV. Here we show ways in which this upper limit on $m_h$ can be relaxed substantially in the perturbative regime, while maintaining the successful unification of gauge couplings as observed in the minimal scenario. A class of models is presented, which includes new vector-like matter with the quantum numbers of the 5, 5-bar and singlet representations of SU(5) and having Yukawa couplings (κ) to the usual Higgs doublet $H_u$. This new matter transforms non-trivially under a "lateral" SU(N) gauge symmetry, which enables the new Yukawa couplings κto be sizable, even larger than the top-quark Yukawa coupling, and still be perturbative at all momenta up to the unification scale of 10^{16} GeV. We find that, consistent with low energy constraints, $m_h$ can be raised to values as large as 200 - 300 GeV. | |
| dc.description | 15 pages LaTeX, 4 EPS figures. References added | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0410085 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0410085 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/43906 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Perturbative Unification and Higgs Boson Mass Bounds | |
| dc.type | text |