Measurements of asymmetries of pion single charge exchange on polarized He-3 at 200 MeV - art. no. 024001

Citation
Q. Zhao et al., Measurements of asymmetries of pion single charge exchange on polarized He-3 at 200 MeV - art. no. 024001, PHYS REV C, 6002(2), 1999, pp. 4001
Citations number
30
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
0556-2813 → ACNP
Volume
6002
Issue
2
Year of publication
1999
Database
ISI
SICI code
0556-2813(199908)6002:2<4001:MOAOPS>2.0.ZU;2-#
Abstract
Asymmetries for the (pi(-), pi(0)) reaction on polarized He-3 were measured using a 200-MeV pion beam at LAMPF. The pi(0)'s were detected with the neu tral meson spectrometer in coincidence with the recoiling tritons. A recoil triton detector, consisting of scintillation-counter telescopes and a wire chamber, was used to measure the time-of-flight, energy loss, and directio n of the tritons. The polarized gaseous He-3 target, developed at TRIUMF, w as modified to run with two diode lasers; the polarization reached 65%. The asymmetries between theta(lab)=60 degrees and 105 degrees were found to be strongly angle dependent. The results are compared with theoretical calcul ations. [S0556-2813(99)02208-6].