Electric dipole moment of the W boson and the radiation amplitude zero

Journal Article · Mon Oct 30 04:00:00 EST 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.1906· OSTI ID:5244074

Boudjema, F ^[1]; Hamzaoui, C ^[2]; Samuel, M A; Woodside, J ^[3]

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1. School of Mathematical and Physical Sciences, University of Sussex, Falmer, Brighton BN1 9QH, Sussex, (United Kingdom)
2. Department of Physics, Rockefeller University, Box 254, New York, New York 10021 (USA) Department of Physics, Concordia University, 1455 de Maisonneuve Boulevard West, Montreal, Quebec, (Canada) H3G 1M8
3. Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078 (USA)

The effect of an electric dipole moment (EDM) of the {ital W} boson is studied in the radiative decay {ital W}{sup {minus}}{r arrow}{bar u}d{gamma}. It is shown that the radiation amplitude zero which is present in this process provides a sensitive test of the possible compositeness of the {ital W}. The two possibilities, a large EDM ({lambda}{ge}1) and a significant magnetic moment ({kappa}{ne}1) can in principle be distinguished.

• OSTI ID: 5244074
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:18; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BASIC INTERACTIONS
BOSONS
CDF
COMPOSITE MODELS
CP INVARIANCE
DECAY AMPLITUDES
DIPOLE MOMENTS
DISTRIBUTION
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
FERMIONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
LIE GROUPS
MAGNETIC MOMENTS
MASSLESS PARTICLES
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
PHOTONS
POSTULATED PARTICLES
QUARKS
RADIATIVE DECAY
SPIN
SU GROUPS
SU-2 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
TRANSITION AMPLITUDES
U GROUPS
W MINUS BOSONS
W PLUS BOSONS
WEAK INTERACTIONS