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Polarization structure of reactions at theta/sub c/. m. =. pi. /2

Journal Article · · Phys. Rev. D; (United States)
;
The polarization structure of a reaction of particles with arbitrary spins is described at 90/sup 0/ for the case when one or several pairs of identical particles form the reaction. The simplification of the structure is described in the optimal formalism, and particularly in the helicity and transversity frames, and the reduction in the number of independent amplitudes is tabulated for arbitrary spins and for a large assortment of combinations of symmetries. The constraints due to only one pair of identical particles are particularly stressed since these have hardly been utilized in the past. The results are illustrated in elastic proton-proton scattering, and data for this reaction at 800 MeV are analyzed at 90/sup 0/ both phenomenologically and with a specific aim of testing suggestions for the existence of dibaryon resonances. It is shown that at 800 MeV and 90/sup 0/ the proton-proton scattering data are compatible with a resonance of the type that has been suggested, though the data do not demand such a resonance.
Research Organization:
Department of Physics, Tufts University, Medford, Massachusetts 02155
OSTI ID:
6790883
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 26:11; ISSN PRVDA
Country of Publication:
United States
Language:
English

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Related Subjects

645207* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. Greater than 1-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYON RESONANCES
BARYON-BARYON INTERACTIONS
BARYONS
DIBARYON RESONANCES
DISTRIBUTION
ELASTIC SCATTERING
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HELICITY
INTERACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
POLARIZATION
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
RESONANCE PARTICLES
SCATTERING
SPIN