Pair production of W and Z bosons and the goldstone boson equivalence theorem
W and Z boson pairs are the signals of the production of many types of new, heavy particles, e.g., heavy Higgs bosons, new Z' bosons, heavy quark and lepton pairs, and heavy gaugino pairs. I show that the W and Z bosons which result from the decay of these heavy particles are predominantly longitudinally polarized, while those produced from background processes are primarily transversely polarized. I study W and Z boson pair production from quark-antiquark annihilation and present compact formulae for the cross sections to produce vector bosons of definite polarization. I also discuss W and Z boson pair production from gluon fusion via a virtual quark loop. Use is made throughout of the equivalence theorem, which relates the properties of longitudinally polarized vector bosons to the corresponding Goldstone bosons which are absorbed via the Higgs mechanism. I also discuss some subtleties related to the equivalence theorem which have not been previously addressed. copyright 1988 Academic Press, Inc.
- Research Organization:
- Physics Department, University of Wisconsin, Madison, Wisconsin 53706
- OSTI ID:
- 6763148
- Journal Information:
- Ann. Phys. (N.Y.); (United States), Vol. 186:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
POSTULATED PARTICLES
DECAY
W MINUS BOSONS
PAIR PRODUCTION
W PLUS BOSONS
Z NEUTRAL BOSONS
FEYNMAN DIAGRAM
GLUONS
GOLDSTONE BOSONS
GRAND UNIFIED THEORY
HIGGS BOSONS
HIGGS MODEL
QUARK-ANTIQUARK INTERACTIONS
QUARKONIUM
QUARKS
THEORETICAL DATA
BOSONS
DATA
DIAGRAMS
ELEMENTARY PARTICLES
FIELD THEORIES
INFORMATION
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
MATHEMATICAL MODELS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
645201* - High Energy Physics- Particle Interactions & Properties-Theoretical- General & Scattering Theory