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Inelastic pion scattering from /sup 12/C

Journal Article · · Phys. Rev. C; (United States)
; ; ; ; ; ; ; ; ; ;

Differential cross sections for inelastic pion scattering from /sup 12/C at incident energies of 100 to 291 MeV and momentum transfers less than or equal to300 MeV/c have been measured and are compared to results obtained from other probes, particularly electrons and protons. Angular distributions and excitation functions are presented for many of the bound states, including the 4.44-MeV (2/sup +/,0), 7.66-MeV (0/sup +/,0), 9.64-MeV (3/sup -/,0), 12.71-MeV/15.11-Mev (1/sup +/;0,1) doublet, 16.11-MeV (2/sup +/,1), 19-MeV (4/sup -/;0,1) doublet, and 2/sup -/ states at 18.25 and 19.4 MeV. Distorted-wave impulse-approximation calculations using both macroscopic and microscopic descriptions of the nuclear wave functions are compared to the data. The observation of an anomalous excitation function for the 15.11-MeV level and the observation of dramatic ..pi../sup +//..pi../sup -/ asymmetries near 18 and 19 MeV excitation due to isospin mixing between 2/sup -/ states and between members of the 4/sup -/ doublet are of particular interest.

Research Organization:
The University of Texas at Austin, Austin, Texas 78712 and New Mexico State University, Las Cruces, New Mexico 88003
OSTI ID:
6492633
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 36:1; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651320* -- Nuclear Properties & Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BINDING ENERGY
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
COLLECTIVE MODEL
CROSS SECTIONS
DATA
DISTRIBUTION
ENERGY
ENERGY RANGE
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
FUNCTIONS
HADRON REACTIONS
IMPULSE APPROXIMATION
INELASTIC SCATTERING
INFORMATION
ISOSPIN
LINEAR MOMENTUM TRANSFER
MATHEMATICAL MODELS
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
MOMENTUM TRANSFER
NUCLEAR MODELS
NUCLEAR REACTIONS
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
SCATTERING
SPIN FLIP
TARGETS