Crossing and duality consistent study of. Lambda. ,. Sigma. sup 0 , and. Lambda. (1405) production by kaon photoproduction and radiative capture

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.452· OSTI ID:5620141

Williams, R A; Ji, C; Cotanch, S R ^[1]

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1. North Carolina State University, Raleigh, North Carolina 27695 (US)

We report a comprehensive analysis of the crossing related reactions {ital p}({gamma},{ital K}{sup +}){ital Y} and {ital p}({ital K}{sup {minus}},{gamma}){ital Y} for {ital Y}={Lambda}, {Sigma}{sup 0}, and {Lambda}(1405). Our model, which incorporates both crossing and duality, reproduces all existing {Lambda} and {Sigma}{sup 0} cross-section, polarization, and capture branching-ratio data while providing useful constraints for the {Lambda}(1405) magnetic transition moments. While the {ital p}({gamma},{ital K}{sup +}){Lambda}(1405) cross section is predicted to be measurable at CEBAF ({sigma}{similar to}1 {mu}b), parity conservation leads to a model-independent suppression of the {ital p}({gamma},{ital K}{sup +}){rvec {Lambda}}(1405) polarization and {ital p}({ital K}{sup {minus}},{gamma}){Lambda}(1405) cross section ({sigma}{similar to}1 nb).

• DOE Contract Number: FG05-88ER40461
• OSTI ID: 5620141
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 43:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYONS
BASIC INTERACTIONS
BRANCHING RATIO
CAPTURE
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
CROSSING SYMMETRY
DISTRIBUTION
DUALITY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HADRON REACTIONS
HADRONS
HYPERONS
INTERACTIONS
KAON REACTIONS
LAMBDA BARYONS
LAMBDA-1405 BARYONS
MESON REACTIONS
NUCLEAR REACTIONS
PARTICLE PRODUCTION
PHOTOPRODUCTION
SIGMA BARYONS
STRANGE PARTICLES
SYMMETRY