A crossing and duality consistent model of [Lambda], [Sigma][sup 0] and [Lambda](1405) hyperon formation in kaon electromagnetic production and capture reactions
Thesis/Dissertation
·
OSTI ID:7169299
A comprehensive theoretical model is developed for the electromagnetic production of the low lying [Lambda], [Sigma][sup 0] and [Lambda](1405) hyperons via kaon photoproduction, ([gamma],K[sup +]), electroproduction, (e,e[prime]K[sup +]), and the crossing related radiative (K[sup [minus]],[gamma]), and pair producing, (K[sup [minus]], e[sup +]e[sup [minus]]), capture reactions for center of mass energies below 2.3 GeV. Utilizing a field-theoretical, quantum hadrodynamic (QHD) interaction Lagrangian, a relativistically covariant formulation of the transition amplitude is derived. The covariant Feynman rules are applied to evaluate the tree-level Born and resonance diagrams with J[sup [pi]] = 0[sup [minus]], 1/2[sup +-] and 1[sup +-]. Crossing symmetry of the S-matrix is exploited to constrain the phenomenological strong and electromagnetic coupling constants of the model by requiring a consistent, simultaneous description of the available data in both ([gamma], K[sup +]) and (K[sup [minus]], [gamma]) reaction channels. Hadronic substructure is accommodated through the use of realistic, extended vector meson dominance (EVMD) form factors. Subsequent analysis and numerical calculations have led to major new results.
- Research Organization:
- North Carolina State Univ., Raleigh, NC (United States)
- OSTI ID:
- 7169299
- Country of Publication:
- United States
- Language:
- English
Similar Records
Crossing and duality consistent study of. Lambda. ,. Sigma. sup 0 , and. Lambda. (1405) production by kaon photoproduction and radiative capture
Kinematically accessible vector meson resonance enhancements in [ital p]([ital K][sup [minus]],[ital e][sup +][ital e[minus]])[Lambda],[Sigma][sup 0],[Lambda](1405)
Hyperon electroproduction in a crossing and duality constrained model
Journal Article
·
Thu Jan 31 23:00:00 EST 1991
· Physical Review, C (Nuclear Physics); (USA)
·
OSTI ID:5620141
Kinematically accessible vector meson resonance enhancements in [ital p]([ital K][sup [minus]],[ital e][sup +][ital e[minus]])[Lambda],[Sigma][sup 0],[Lambda](1405)
Journal Article
·
Wed Sep 01 00:00:00 EDT 1993
· Physical Review, C (Nuclear Physics); (United States)
·
OSTI ID:6199614
Hyperon electroproduction in a crossing and duality constrained model
Journal Article
·
Sat Oct 31 23:00:00 EST 1992
· Physical Review, C (Nuclear Physics); (United States)
·
OSTI ID:7199222
Related Subjects
663460* -- Meson- & Hyperon-induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BASIC INTERACTIONS
BOSONS
CAPTURE
CROSSING SYMMETRY
DUALITY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HYPERONS
INTERACTIONS
KAONS
LAMBDA BARYONS
LAMBDA-1405 BARYONS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PSEUDOSCALAR MESONS
SIGMA BARYONS
SIGMA NEUTRAL PARTICLES
SIGMA PARTICLES
STRANGE MESONS
STRANGE PARTICLES
SYMMETRY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BASIC INTERACTIONS
BOSONS
CAPTURE
CROSSING SYMMETRY
DUALITY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HYPERONS
INTERACTIONS
KAONS
LAMBDA BARYONS
LAMBDA-1405 BARYONS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PSEUDOSCALAR MESONS
SIGMA BARYONS
SIGMA NEUTRAL PARTICLES
SIGMA PARTICLES
STRANGE MESONS
STRANGE PARTICLES
SYMMETRY