MEASUREMENT OF THE H-1(GAMMA,PI(0)) CROSS-SECTION NEAR-THRESHOLD .2. PION ANGULAR-DISTRIBUTIONS

Citation
Jc. Bergstrom et al., MEASUREMENT OF THE H-1(GAMMA,PI(0)) CROSS-SECTION NEAR-THRESHOLD .2. PION ANGULAR-DISTRIBUTIONS, Physical review. C. Nuclear physics, 55(4), 1997, pp. 2016-2023
Citations number
15
Categorie Soggetti
Physics, Nuclear
ISSN journal
05562813
Volume
55
Issue
4
Year of publication
1997
Pages
2016 - 2023
Database
ISI
SICI code
0556-2813(1997)55:4<2016:MOTHCN>2.0.ZU;2-N
Abstract
This paper represents a continuation of our earlier report on the meas urement of the reaction H-1(gamma, pi(0)) in the threshold region (144 .7-169.3 MeV). More specifically we present pion angular distributions reconstructed using information on the pi(0)-decay photon energies no t previously utilized. Analysis of these distributions reconfirms most of our previous conclusions. in particular, we confirm the rapid incr ease in the real part of the S-wave multipole, ReE04 at energies above the pi(+) threshold. New results for the P-wave amplitude P-1 are pre sented.