Elastic and inelastic scattering of 50-MeV pions from /sup 28/Si and /sup 30/Si

Journal Article · Sun Feb 01 04:00:00 EST 1987 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.35.708· OSTI ID:7073206

Wienands, U; Hessey, N; Barnett, B M; Rozon, F M; Roser, H W; Altman, A; Johnson, R R; Gill, D R; Smith, G R; Wiedner, C A; others, and

Angular distributions of the differential cross section for elastic and inelastic scattering of 50-MeV ..pi../sup +/ and ..pi../sup -/ on /sup 28/Si and /sup 30/Si have been measured to a relative accuracy of 5--10X We fitted the cross section of elastic ..pi../sup +/ and ..pi../sup -/ scattering from /sup 28/Si simultaneously with an optical model using a second-order potential of the Michigan State University form. Our best-fit parameters differ from those given previously. The ratio of the neutron and proton transition-matrix elements for the first J/sup ..pi../ = 2/sup +/ state in /sup 28/Si is found from the inelastic cross section to be 1.13 +- 0.09. For /sup 30/Si, the ratio is found to be 0.93 +- 0.09, which differs significantly from the value derived from lifetime measurements on mirror nuclei.

• Research Organization: University of British Columbia, Vancouver, British Columbia, Canada V6T 2A3
• OSTI ID: 7073206
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 35:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651420* -- Nuclear Properties & Reactions
A=20-38
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
HADRON REACTIONS
INELASTIC SCATTERING
ISOTOPES
LIFETIME
LIGHT NUCLEI
MATRIX ELEMENTS
MESON REACTIONS
MEV RANGE
MEV RANGE 10-100
MIRROR NUCLEI
NUCLEAR REACTIONS
NUCLEI
OPTICAL MODELS
PARITY
PARTICLE PROPERTIES
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
SCATTERING
SILICON 28
SILICON 28 TARGET
SILICON 30
SILICON 30 TARGET
SILICON ISOTOPES
SPIN
STABLE ISOTOPES
TARGETS