[ital b][r arrow][ital s][gamma] and [ital Z][r arrow][ital b[bar b]] constraints on the two Higgs doublet model
Journal Article
·
· Physical Review, D (Particles Fields); (United States)
- Center for Theoretical Physics, Department of Physics, Texas A M University, College Station, Texas 77843-4242 (United States) Astroparticle Physics Group, Houston Advanced Research Center (HARC), The Woodlands, Texas 77381 (United States)
We perform a combined analysis of two stringent constraints on the two Higgs doublet model: one coming from the recently announced CLEO II bound on [ital B]([ital b][r arrow][ital s][gamma]) and the other from the recent CERN LEP data on the ratio [Gamma]([ital Z][r arrow][ital b[bar b]])/[Gamma]([ital Z][r arrow]hadrons). We include one-loop vertex corrections to [ital Z][r arrow][ital b[bar b]] in the model. We find that although the [ital b][r arrow][ital s][gamma] bound has been known to be the strongest constraint present in the charged Higgs sector of the model, the current LEP bound on [ital Z][r arrow][ital b[bar b]] can also provide additional constraints for tan[beta][approx lt]1.
- OSTI ID:
- 7112583
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:1; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
662210* -- Specific Theories & Interaction Models
662380 -- Decays of Intermediate Bosons-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BEAUTY PARTICLES
BOSONS
CORRECTIONS
DECAY
ELEMENTARY PARTICLES
FUNCTIONS
HADRONS
HIGGS MODEL
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE MODELS
PSEUDOSCALAR MESONS
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Particle Systematics-- Unified Theories & Models-- (1992-)
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662380 -- Decays of Intermediate Bosons-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BEAUTY PARTICLES
BOSONS
CORRECTIONS
DECAY
ELEMENTARY PARTICLES
FUNCTIONS
HADRONS
HIGGS MODEL
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE MODELS
PSEUDOSCALAR MESONS
Pa
Particle Systematics-- Unified Theories & Models-- (1992-)
VERTEX FUNCTIONS
Z NEUTRAL BOSONS