Higgs boson mass bounds separate models of electroweak symmetry breaking

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.5855· OSTI ID:388472

Diaz, M A ^[1]; ter Veldhuis, T A; Weiler, T J ^[2]

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1. Physics Department, University of Southampton, Southampton, SO17 1BJ (United Kingdom)
2. Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)

Vacuum stability and metastability imply lower limits on the mass of the Higgs boson in the standard model (SM). In contrast, we present an improved calculation of the lightest Higgs boson mass in supersymmetric (SUSY) models, by summing to all orders in perturbation theory the leading and next-to-leading logarithms with a renormalization group equation technique, and by including finite two-loop QCD corrections. We believe our result to be the most accurate available in the literature. The mass calculation leads to an upper bound on the Higgs boson mass when the SUSY-breaking scale is sensibly restricted to {approx_lt}1 TeV. In particular, our improvements to the SUSY Higgs boson mass calculation lower the minimal SUSY standard model (MSSM) upper limit by about 10 GeV. We study the possibility that these SM and MSSM bounds do not overlap, in which case a single Higgs boson mass measurement will distinguish between the two models. (Abstract Truncated)

• OSTI ID: 388472
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 54; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HIGGS BOSONS
MASS
PERTURBATION THEORY
RENORMALIZATION
STABILITY
STANDARD MODEL
SUPERSYMMETRY
SYMMETRY BREAKING