Naturalness lowers the upper bound on the lightest Higgs boson mass in supersymmetry

Journal Article · Sat Mar 01 00:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.2950· OSTI ID:467544

Anderson, G W ^[1]; Castano, D J ^[2]; Riotto, A ^[1]

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1. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 (United States)
2. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)

We quantify the extent to which naturalness is lost as experimental lower bounds on the Higgs boson mass increase, and we compute the natural upper bound on the lightest supersymmetric Higgs boson mass. We find that it would be unnatural for the mass of the lightest supersymmetric Higgs boson to saturate its maximal upper bound. In the absence of significant fine-tuning, the lightest Higgs boson mass should lie below 120 GeV, and in the most natural cases it should be lighter than 108 GeV. For modest tan{beta}, these bounds are significantly lower. Our results imply that a failure to observe a light Higgs boson in experiments previous to the CERN LHC becoming operational could provide a serious challenge to the principal motivation for weak-scale supersymmetry. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Fermi National Accelerator Laboratory
• DOE Contract Number: AC02-76CH03000; FG05-87ER40319
• OSTI ID: 467544
• Journal Information: Physical Review, D, Vol. 55, Issue 5; Other Information: PBD: Mar 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HIGGS BOSONS
MASS
STANDARD MODEL
SUPERSYMMETRY
LIMITING VALUES