Theoretical angular distributions from coherent subthreshold pion production

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.R423· OSTI ID:7165255

Deutchman, P A ^[1]; Maung, K M ^[2]

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1. Physics Department, University of Idaho, Moscow, Idaho 83843 (USA)
2. Physics Department, Hampton University, Hampton, Virginia 23668 (USA)

We have calculated theoretical angular distributions for exclusive {pi}{sup 0} production in C+C collisions at 84 MeV/nucleon using a quantum-coherent, microscopic, many-body formalism. We use a model spin, transition-spin, {Delta}-isobar-formation interaction that is expanded in angular momentum multipoles and we now have the results from a complete code that includes these multipoles to all orders which couple to shell-model information. Also, we calculate pion contributions coming from both the target and projectile and find that these contributions are important in determining the shape of the theoretical angular distributions. We compare the theoretical calculations to {pi}{sup 0} data and find that our results are similar to the shape of the data at higher pion energies and bear some similarity in trend to the pion bremsstrahlung model. We also find that the shape of the theoretical angular distribution is sensitive to shell-model information.

• OSTI ID: 7165255
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BOSONS
CARBON 12 REACTIONS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
EXCLUSIVE INTERACTIONS
GEV RANGE
GEV RANGE 01-10
HADRONS
HEAVY ION REACTIONS
INTERACTIONS
ISOBAR MODEL
MATHEMATICAL MODELS
MESONS
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
SHELL MODELS
TARGETS