Unitarity constraints on scalar parameters of the Standard and Two Higgs Doublets Model

2000/12/28 by Abdesslam Arhrib, Arhrib, Abdesslam · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0012353

16 pages, latex, 1 ps figures. Based on hep-ph/0006035. To be published in the proceedings of: Noncommutative Geometry, Superstrings and Particle Physics Workshop, Univ-Rabat, Morocco

arxiv created 2000/12/28 · openalex publication_date 2000/12/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Unitarity constraints on the scalar parameters both for the Standard Model and the general Two Higgs Doublet Model (THDM) are examined. In the case of the THDM with an exact discrete symmetry transformation, we show that the mass of the lightest CP-even Higgs boson (M_h) and tanβ are strongly correlated and consequently a strong lower bound can be put on M_h for large tanβ. It is also shown that the inclusion of the discrete symmetry breaking term relaxes the aforementioned correlation.

Cited by

• Two-Component Dark Matter with an SU(2) Dark Sector
• Tree-level unitarity constraints for the SM-like 2HDM
• Tree-level unitarity constraints in the 2HDM with CP-violation

Related

• Tree-level unitarity constraints for the SM-like 2HDM
• Unitarity bound in the most general two Higgs doublet model
• Littlest Higgs Model and Unitarity Constraints
• Tree-level unitarity constraints in the 2HDM with CP-violation
• Mass bounds of the lightest CP-even Higgs boson in the two-Higgs-doublet model