Coupled channels analysis of positive pion inelastic scattering from /sup 28/Si at 50 MeV

Journal Article · Mon May 01 04:00:00 EDT 1989 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.39.1935· OSTI ID:6029730

Whisnant, C S; Adams, G S; Escalante, J A; Mishra, C S; Al-Solami, M; Preedom, B M; Ritchie, B G; Wright, D H

The 2/sub 1//sup +/, 4/sub 1//sup +/, and 0/sub 2//sup +/ states in /sup 28/Si have been observed with ..pi../sup +/ scattering at 50 MeV. These data, along with existing data for /sup 28/Si are compared to coupled channel calculations. This analysis produces a larger ..beta../sub 2/ than previously found in low energy distorted wave calculations and is consistent with results from resonance energy studies. The interference of the one- and two-step contributions make the calculated 4/sup +/ cross section quite sensitive to the sign of ..beta../sub 4/. The sensitivity to the ..pi..A optical model is discussed.

• Research Organization: Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208
• OSTI ID: 6029730
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Journal Issue: 5 Vol. 39:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651420 -- Nuclear Properties & Reactions
A=20-38
Experimental
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL THEORY
CROSS SECTIONS
DISTORTED WAVE THEORY
DISTRIBUTION
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
HADRON REACTIONS
IMPULSE APPROXIMATION
INELASTIC SCATTERING
ISOTOPES
LIGHT NUCLEI
MATRIX ELEMENTS
MESON REACTIONS
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEI
OPTICAL MODELS
PARITY
PARTICLE PROPERTIES
PION PLUS REACTIONS
PION REACTIONS
SCATTERING
SILICON 28
SILICON 28 TARGET
SILICON ISOTOPES
SPIN
STABLE ISOTOPES
TARGETS