Pion-pion p-wave dominance in the pd -> He-3 pi(+)pi(-) reaction near threshold - art. no. 061002

Citation
F. Bellemann et al., Pion-pion p-wave dominance in the pd -> He-3 pi(+)pi(-) reaction near threshold - art. no. 061002, PHYS REV C, 6006(6), 1999, pp. 1002
Citations number
19
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
0556-2813 → ACNP
Volume
6006
Issue
6
Year of publication
1999
Database
ISI
SICI code
0556-2813(199912)6006:6<1002:PPDITP>2.0.ZU;2-0
Abstract
The cross section for the pd-->He-3 pi(+)pi(-) reaction has been measured i n a kinematically complete experiment at a c.m. excess energy of Q = 70 MeV . The striking energy and angular distributions are reproduced in a simple model calculation when it is assumed that the reaction is dominated by p-wa ve pi(+)pi(-) pairs. This is in complete contrast to the results of inclusi ve measurements at somewhat higher beam energies which show a strong s-wave ABC enhancement at low pi pi masses. [S0556-2813(99)51111-4].