QCD corrections to Higgs boson self-energies and fermionic decay widths

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.51.218· OSTI ID:6717565

Djouadi, A ^[1]; Gambino, P ^[2]

---

1. Groupe de Physique des Particules, Universite de Montreal, Case 6128 Suc. A, Montreal PQ, H3C 3J7 (Canada)
2. Department of Physics, New York University, 4 Washington Place, New York, New York 10003 (United States)

We present the QCD corrections to Higgs boson self-energies for an arbitrary momentum transfer and for different internal quark masses to treat the case of [ital CP]-even, [ital CP]-odd, and charged Higgs bosons which appear in extensions of the standard model scalar sector. Using Ward identities, we then relate these results obtained by directly evaluating the relevant two-loop Feynman diagrams to the known expressions for the electroweak vector boson vacuum polarization functions. Finally, we derive the exact analytical expressions for the QCD corrections to the decays of these Higgs particles into quark pairs in the general case, and reproduce in a completely independent way known results in some special cases.

• OSTI ID: 6717565
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 51:1; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662210 -- Specific Theories & Interaction Models
662230 -- Quantum Chromodynamics-- (1992-)
662440* -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CORRECTIONS
CP INVARIANCE
DECAY
DIAGRAMS
DIMENSIONS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
FEYNMAN DIAGRAM
FIELD THEORIES
HIGGS BOSONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
MASS
MATHEMATICAL MODELS
MOMENTUM TRANSFER
PARTICLE DECAY
PARTICLE MODELS
POLARIZATION
POSTULATED PARTICLES
Pa
Particle Systematics-- Unified Theories & Models-- (1992-)
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SELF-ENERGY
STANDARD MODEL
UNIFIED GAUGE MODELS
VACUUM STATES
WARD IDENTITY
WIDTH