TOTAL AND PARTIAL PION ABSORPTION CROSS-SECTIONS ON HE-4 IN THE DELTA-RESONANCE REGION

Authors
MATEOS AO ANDROIC D BACKENSTOSS G BOSNAR D BREUER H DOBBELING H DOOLING T FURIC M GRAM PAM GREGORY NK HOFFART A INGRAM Q KLEIN A KOCH K KOHLER J KOTLINSKI B KROEDEL M KYLE G LEHMANN A MICHAELIAN K PETKOVIC T PLANINIC M REDWINE RP ROWNTREE D SENNHAUSER U SIMICEVIC N TREZECIAK R ULLRICH H WANG M WANG MH WEYER HJ WILDI M WILSON KE
Citation
Ao. Mateos et al., TOTAL AND PARTIAL PION ABSORPTION CROSS-SECTIONS ON HE-4 IN THE DELTA-RESONANCE REGION, Physical review. C. Nuclear physics, 58(2), 1998, pp. 942-952
Citations number
51
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
58
Issue
2
Year of publication
1998
Pages
942 - 952
Database
ISI
SICI code
0556-2813(1998)58:2<942:TAPPAC>2.0.ZU;2-Q
Abstract
This paper presents a large solid angle measurement of the positive pi on absorption cross section on He-4 and its decomposition into partial channels. The total absorption cross sections at incident pion kineti c energies of T-pi+=70, 118, 162, and 239 MeV are 35+/-5, 52+/-4, 51+/ -5, and 27+/-2 mb, respectively. These values are lower than those rep orted in some previous experiments. At all pion energies a large fract ion of the absorption cross section is due to multinucleon channels.