Systematics of pion double charge exchange

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5793610

Gilman, R A

Differential cross sections have been measured for pion-induced double-charge-exchange (DCX) reactions leading to double-isobaric-analog states (DIAS) and low-lying nonanalog states in the residual nuclei. A description of the experimental details and data analysis is presented. The experimentally observed systematics of reactions leading to DIAS, to nonanalog ground states, and to low-lying 2/sup +/ states are described. Lowest-order optical-model calculations of DIAS DCX are compared to the data. Efforts to understand the anomalies by invoking additional reaction-mechanism amplitudes and a higher order optical potential are described. Calculations of nonanalog DCX reactions leading to J/sup ..pi../ = 0/sup +/ states were performed within a distorted-wave impulse-approximation framework. The sensitivities of these calculations to input parameters are discussed.

• Research Organization: Pennsylvania Univ., Philadelphia (USA)
• OSTI ID: 5793610
• Country of Publication: United States
• Language: English

Related Subjects

651725* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
DISTORTED WAVE THEORY
ENERGY LEVELS
HADRON REACTIONS
IMPULSE APPROXIMATION
ISOBARIC ANALOGS
MESON REACTIONS
NUCLEAR REACTIONS
OPTICAL MODELS
PION REACTIONS