Using [ital b][r arrow][ital s][gamma] to probe top quark couplings

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.319· OSTI ID:5339724

Hewett, J L; Rizzo, T G ^[1]

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1. High Energy Physics Divison, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Possible anomalous couplings of the top quark to on-shell photons and gluons are constrained by the recent results of the CLEO Collaboration on both inclusive and exclusive radiative [ital B] decays. We find that the process [ital b][r arrow][ital s][gamma] can lead to reasonable bounds (of order a few [times]10[sup [minus]16] [ital e] cm) on both the anomalous electric and magnetic dipole moments of the top quark. Essentially no limits are obtained on the corresponding chromoelectric and chromomagnetic moments, which enter the expression for the decay rate only through operator mixing.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5339724
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:1; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662390 -- Electromagnetic Processes & Properties-- (1992-)
662440* -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BEAUTY PARTICLES
BOSONS
COUPLING
DECAY
DIPOLE MOMENTS
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
FERMIONS
GLUONS
HADRONS
MAGNETIC DIPOLE MOMENTS
MAGNETIC MOMENTS
MESONS
MIXING
PARTICLE DECAY
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARKS
RADIATIVE DECAY
STRANGE PARTICLES
TOP PARTICLES