Reaction [ital pp][r arrow][ital n][Delta][sup ++]: Observables and model predictions

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.652· OSTI ID:7160904

Sammarruca, F ^[1]

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1. Department of Physics, University of Idaho, Moscow, Idaho 83843 (United States)

A recent analysis of exclusive pion production in proton-proton scattering allows for the direct comparison of theory with [ital pp][r arrow][ital n][Delta][sup ++] observables. We have extracted [ital NN][r arrow][ital N][Delta] transition amplitudes from the Bonn meson-exchange model and calculated differential cross section and asymmetry for this reaction. In particular, we establish correlations between the asymmetry and the phases of the major inelastic transition amplitudes. We find evidence that the phases of the transition amplitude [sup 3][ital F][sub 3]([ital NN])[r arrow][sup 5][ital P][sub 3]([ital N][Delta]) are responsible for the large discrepancy between theory and experiment in the asymmetry around 800 MeV incident laboratory kinetic energy. We also suggest how the theory can be improved.

• OSTI ID: 7160904
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

662340 -- Hadron Interactions-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663510 -- Nuclear Mass Ranges-- A=1-5-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
ASYMMETRY
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BARYONS
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
CORRELATIONS
CROSS SECTIONS
DELTA BARYONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
HYDROGEN 1 TARGET
INELASTIC SCATTERING
INTERACTIONS
MEV RANGE
MEV RANGE 100-1000
N BARYONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
NUCLEONS
PARTICLE INTERACTIONS
POTENTIALS
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
SCATTERING
TARGETS
TRANSITION AMPLITUDES