Pion inelastic scattering from sup 20 Ne

Technical Report · Fri Dec 01 04:00:00 EST 1989

DOI:https://doi.org/10.2172/5010702· OSTI ID:5010702

Burlein, M ^[1]

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1. Pennsylvania Univ., Philadelphia, PA (USA). Dept. of Physics

Angular distributions for {sup 20}Ne({pi}{sup {plus minus}}, {pi}{sup {plus minus}}{prime}) were measured on the Energetic Pion Channel and Spectrometer (EPICS) at the Clinton P. Anderson Meson Physics Facility (LAMPF). Data were taken with both {pi}{sup {plus}} and {pi}{sup {minus}} over an angular range of 12{degree} to 90{degree} for T{sub {pi}}=180 MeV and with {pi}{sup +} from 15{degree} to 90{degree} for T{sub {pi}}=120 MeV. The data were analyzed using both the distorted-wave impulse approximation (DWIA) and the coupled-channels impulse approximation (CCIA) with collective transition densities. In addition, microscopic transition densities were used in the DWIA analysis for states in the lowest rotational bands. The transitions to the 6.73-MeV 0{sup +} and several 1{sup {minus}} states, including the states at 5.79 MeV and 8.71 MeV, were studied using several models for the transition density. Strong evidence for the importance of two-step routes in pion inelastic scattering was seen in several angular distributions, including the 5.79-MeV 1{sup {minus}}, the first three 4{sup +} states, and the 8.78-MeV 6{sup +}. 100 refs., 81 figs., 33 tabs.

• Research Organization: Los Alamos National Lab., NM (USA)
• Sponsoring Organization: DOE/ER; NSF; RAWF
• OSTI ID: 5010702
• Report Number(s): LA-11697-T; ON: DE90003613
• 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
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
COLLECTIVE MODEL
COUPLED CHANNEL BORN APPROXIMATION
DISTRIBUTION
HADRON REACTIONS
IMPULSE APPROXIMATION
INELASTIC SCATTERING
MATHEMATICAL MODELS
MESON REACTIONS
NEON 20 TARGET
NUCLEAR MODELS
NUCLEAR REACTIONS
PION REACTIONS
SCATTERING
SHELL MODELS
TARGETS