Light Minimal Supersymmetric Standard Model Higgs Boson Scenario and its Test at Hadron Colliders

Journal Article · Fri Feb 15 04:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.061801· OSTI ID:21024750

Belyaev, Alexander; Nomura, Daisuke; Tobe, Kazuhiro; Yuan, C -P ^[1]; Qinghong, Cao ^[2]

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1. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
2. Department of Physics, University of California at Riverside, Riverside, California 92521 (United States)

We show that, in the minimal supersymmetric standard model, the possibility for the lightest CP-even Higgs boson to be lighter than Z boson (as low as about 60 GeV) is, contrary to the usual belief, not yet excluded by the CERN LEP2 Higgs search nor any direct searches for supersymmetric particles at high energy colliders. The characteristic of the light Higgs boson scenario (LHS) is that the ZZh coupling and the decay branching ratio Br(h/A{yields}bb) are simultaneously suppressed as a result of generic supersymmetric loop corrections. Consequently, the W{sup {+-}}H{sup {+-}}h coupling has to be large due to the sum rule of Higgs couplings to weak gauge bosons. We discuss the potential of the Fermilab Tevatron and B factories to test the LHS, and show that the associated neutral and charged Higgs boson production process, pp{yields}H{sup {+-}}h(A), can completely probe the LHS at the CERN Large Hadron Collider.

• OSTI ID: 21024750
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CERN
CERN LHC
FERMILAB TEVATRON
GEV RANGE 10-100
HADRONS
HIGGS BOSONS
HIGGS MODEL
MESON FACTORIES
PARTICLE DECAY
SPARTICLES
STANDARD MODEL
SUM RULES
SUPERSYMMETRY
Z NEUTRAL BOSONS