LARGE-SOLID-ANGLE STUDY OF PION ABSORPTION ON HE-3

Citation
T. Alteholz et al., LARGE-SOLID-ANGLE STUDY OF PION ABSORPTION ON HE-3, Physical review letters, 73(10), 1994, pp. 1336-1339
Citations number
28
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
73
Issue
10
Year of publication
1994
Pages
1336 - 1339
Database
ISI
SICI code
0031-9007(1994)73:10<1336:LSOPAO>2.0.ZU;2-C
Abstract
Measurements have been made of pi(+) absorption on He-3 at T-pi+ = 118 , 162, and 239 MeV using the Large Acceptance Detector System. The nea rly 4 pi solid angle coverage of this detector minimizes uncertainties associated with extrapolations over unmeasured regions of phase space . The total absorption cross section is reported. In addition, the tot al cross section is divided into components in which only two or all t hree nucleons play a significant role in the process. These are the fi rst direct measurements of the total and three nucleon absorption cros s sections.