Pion absorption on polarized {sup 7}Li

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Bulletin of the American Physical Society

OSTI ID:374776

Greco, T A; Dooling, T A; Klein, A ^[1]

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1. and others

Angular distributions, cross sections and analyzing powers for the reaction {sup 7}Li({pi}{sup +},pp){sup 5}He at an incident energy of T{sub {pi}} = 165 MeV have been measured at PSI, Switzerland. The emitted protons were detected with the SUSI spectrometer at 38{degrees} in coincidence with an array of five scintillator telescopes centered around the quasi-free angle for absorption on a nucleon pair. Despite some success in describing differential cross sections, DWIA calculations using a quasi-deuteron model tend to underpredict absolute pion absorption cross sections. By studying vector and tensor analyzing powers, which are predicted to be sensitive to details of the DWIA calculations, the authors hope to gain a better understanding of the reaction mechanism. Results including angular and energy distributions as well as analyzing powers will be presented and compared with DWIA predictions.

• OSTI ID: 374776
• Report Number(s): CONF-9304297--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 40; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR DISTRIBUTION
CROSS SECTIONS
HELIUM 5
LITHIUM 7 TARGET
PION PLUS REACTIONS
POLARIZED TARGETS
PROTONS