RESONANCE MODEL FOR PHOTOPRODUCTION OF K MESONS ON NUCLEONS

Journal Article · Mon Oct 01 04:00:00 EDT 1962 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.128.468· OSTI ID:4766511

Hatsukade, S; Schnitzer, H J

An approximate one-dimensional dispersion relation of the Cini-Fubini type is assumed for the invariant amplitudes of the photoproduction of K mesons on nucleons on the supposition that among the various intermediate states in the three related channels only the single-particle states and the resonant states rnake appreciable contributions. The resonant states that are taken into account are the following: the three-pion-nucleon resonances, the pion-kaon resonance, and the three pion-hyperon resonances. The expressions for the spectral functions are derived by applying the unitarity conditions to each of the three related channels. By the conservation of angular momentum and parity only certain multipole amplitudes determined by the spin and parity of the resonances contribute to the spectral functions, and for the se nonvanishing multipole amplitudes the Breit-Wigner formula is assumed. (auth)

• Research Organization: Univ. of Rochester, N.Y.
• NSA Number: NSA-16-031043
• OSTI ID: 4766511
• Report Number(s): NYO-10133; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 128; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR MOMENTUM
BREIT-WIGNER FORMULA
CINI-FUBINI APPROXIMATION
CONSERVATION LAWS
DISPERSION THEORY
HYPERONS
KAONS
MATHEMATICS
MOMENTUM
NEUTRONS
NUCLEONS
PARITY
PHOTOPRODUCTION
PHYSICS
PIONS
QUANTUM MECHANICS
RESONANCE
SCATTERING
SPECTRAL FUNCTIONS
SPIN