QCD corrections to the charged-Higgs-boson decay of a heavy top quark

Journal Article · Tue Dec 01 04:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.5196· OSTI ID:6990832

Liu, J ^[1]; Yao, Y ^[2]

---

1. Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States)
2. Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)

It is shown that up to an overall scale the lowest-order QCD corrections to [ital t][r arrow][ital H][sup +][ital b] and to [ital t][r arrow][ital W][sup +][ital b] are the same in the heavy-top-quark limit. Asymptotically, they are given by [minus](4[alpha][sub [ital s]]/3[pi]) [[pi][sup 2]/3[minus]5/4], resulting in a reduction in the decay rate by about 9%, rather than 6% reported previously in the literature. This is verified explicitly by an analytic calculation. The application of the equivalence theorem to this process is also discussed.

• DOE Contract Number: AC02-76ER03071; AC02-76ER01112
• OSTI ID: 6990832
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:11; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662230* -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAUTY PARTICLES
BOSONS
CP INVARIANCE
DECAY
ELEMENTARY PARTICLES
EQUIVALENCE PRINCIPLE
FERMIONS
FIELD THEORIES
FORM FACTORS
FUNCTIONS
GLUONS
GREEN FUNCTION
HIGGS BOSONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
LAGRANGIAN FUNCTION
MATRIX ELEMENTS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
TOP PARTICLES
W PLUS BOSONS
WARD IDENTITY