Coupled-channel analysis of K{lambda} production in the nucleon resonance region

Journal Article · Fri Jul 01 00:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.015210· OSTI ID:20698862

Shklyar, V; Lenske, H; Mosel, U ^[1]

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1. Institut fuer Theoretische Physik, Universitaet Giessen, D-35392 Giessen (Germany)

A unitary coupled-channel effective Lagrangian model is applied to the combined analysis of the ({pi},{gamma})N{yields}K{lambda} reactions in the energy region up to 2 GeV. To constrain the resonance couplings to the K{lambda} final state the recent photoproduction data obtained by the SAPHIR, Spring-8, and CLAS groups are included in the calculations. The main resonance contributions to the process stem from the S{sub 11}(1650),P{sub 13}(1720), and P{sub 13}(1900) states. The second peak at 1.9 GeV seen in the photoproduction cross-section data is described as a coherent sum of the resonance and background contributions. The prediction for the beam polarization observable is presented.

• OSTI ID: 20698862
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 72, Issue 1; Other Information: DOI: 10.1103/PhysRevC.72.015210; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COUPLED CHANNEL THEORY
CROSS SECTIONS
GEV RANGE
KAONS
LAGRANGIAN FUNCTION
LAMBDA BARYONS
MULTIPARTICLE SPECTROMETERS
NUCLEONS
PARTICLE IDENTIFICATION
PHOTON-NUCLEON INTERACTIONS
PHOTONS
PHOTOPRODUCTION
PION-NUCLEON INTERACTIONS
PIONS
POLARIZATION