EVIDENCE FOR PION ABSORPTION ON 4 NUCLEONS

Authors
RZEHORZ B BACKENSTOSS G DZEMIDZIC M FURIC M HOFFART A PETKOVIC T ULLRICH H WEYER HJ WEISER D WILDI M
Citation
B. Rzehorz et al., EVIDENCE FOR PION ABSORPTION ON 4 NUCLEONS, Europhysics letters, 34(2), 1996, pp. 103-108
Citations number
15
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
34
Issue
2
Year of publication
1996
Pages
103 - 108
Database
ISI
SICI code
0295-5075(1996)34:2<103:EFPAO4>2.0.ZU;2-T
Abstract
Experimental spectra from the coincident detection of three nucleons a fter the pion absorption in He-4 are displayed. The presence of a mech anism with four nucleons participating in the absorption process is ma de obvious. The total cross-sections for this absorption mode are: sig ma(abs)(4NA) = (1.0+/-0.2) mb at T-pi = 120 MeV and sigma(abs)(4NA) = (2.18+/-0.65) mb at T-pi = 210 MeV.