Nuclear-structure aspects of nonanalog pion double charge exchange

Journal Article · Sat Nov 01 04:00:00 EST 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.34.1895· OSTI ID:7243904

Gilman, R; Fortune, H T; Johnson, M B; Siciliano, E R; Toki, H; Wirzba, A; Brown, B A

The sensitivity of pion double charge exchange to nuclear structure in the shell model is examined. We consider the nonanalog ground-state to ground-state (T = 0 to T = 2) transitions on a variety of nuclear targets. The reaction model, which assumes that double charge exchange is driven by a ..pi..+rho-meson--mediated, ..delta../sub 33/-nucleon interaction, reproduces the energy dependence and shape of the empirical cross section for all the (..pi../sup +/,..pi../sup -/) transitions examined. The magnitude of the cross section is particularly sensitive to collectivity in the nuclear wave functions. All parameters of the model, with the exception of the range of the meson-..delta../sub 33/ form factor, are fixed by theoretical arguments. The form factor is then determined by normalizing to the /sup 16/O(..pi../sup +/,..pi../sup -/) /sup 16/ Ne cross section. Predictions are made for a variety of other low-lying 0/sup +/ transitions.

• Research Organization: University of Pennsylvania, Philadelphia, Pennsylvania 19104
• OSTI ID: 7243904
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 34:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
653003 -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BOSONS
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
COMPOSITE MODELS
COUPLING CONSTANTS
CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXCITATION FUNCTIONS
FORM FACTORS
FUNCTIONS
HADRON REACTIONS
HADRONS
ISOTOPES
LIE GROUPS
LIGHT NUCLEI
MATHEMATICAL MODELS
MESON REACTIONS
MESONS
MEV RANGE
MEV RANGE 100-1000
NEON 16
NEON ISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
NUCLEI
OXYGEN 16 TARGET
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PION PLUS REACTIONS
PION REACTIONS
PIONS
PIONS MINUS
PSEUDOSCALAR MESONS
QUARK MODEL
SHELL MODELS
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
TARGETS
WAVE FUNCTIONS