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Polarization of the. delta. isobar in the reaction. gamma. p. --> pi. /sup -/. delta. /sup + +/

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6300800
; ;
A model taking into account the contributions of the nucleon resonances N*(1470, N*(1519), N*(1652), and N*(1672) and the one-pion gauge-invariant mechanism with absorption of low partial waves is used to study the angular dependence of the polarization characteristics of ..delta.. isobars produced in the reaction ..gamma..p..--> pi../sup -/..delta../sup + +/. The calculation is carried out in the ..delta..-isobar rest frame for E/sub ..gamma../ = 1 GeV. The following cases are studied: 1) the initial particles in ..gamma..p collisions are polarized, 2) the photons are polarized and the protons are unpolarized.
Research Organization:
Khar'kov Physicotechnical Institute, Academy of Sciences of the Ukrainian SSR
OSTI ID:
6300800
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 39:1; ISSN SJNCA
Country of Publication:
United States
Language:
English

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Related Subjects

645200* -- High Energy Physics-- Particle Interactions & Properties-Theoretical
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON RESONANCES
BARYONS
BASIC INTERACTIONS
BEAMS
DELTA-1236 RESONANCES
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GAUGE INVARIANCE
GEV RANGE
GEV RANGE 01-10
HADRONS
HYDROGEN 1 TARGET
INTERACTIONS
INVARIANCE PRINCIPLES
N RESONANCES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PHOTON-PROTON INTERACTIONS
PHOTOPRODUCTION
POLARIZED BEAMS
POLARIZED PRODUCTS
POLARIZED TARGETS
RESONANCE PARTICLES
TARGETS