np final-state interaction in the reaction H-2((p)over-right-arrow,pp)n atE(p)over-right-arrow=19 MeV - art. no. 064004

Citation
M. Przyborowski et al., np final-state interaction in the reaction H-2((p)over-right-arrow,pp)n atE(p)over-right-arrow=19 MeV - art. no. 064004, PHYS REV C, 6006(6), 1999, pp. 4004
Citations number
29
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<4004:NFIITR>2.0.ZU;2-A
Abstract
We investigated the H-2((p) over right arrow, pp)n breakup reaction by meas uring an angular distribution of the cross section and analyzing power in t he np final-state interaction (FSI) at E-(p) over right arrow = 19 MeV as a function of the np production angle. Kinematically complete measurements a t 12 angular settings of detectors have been done. The observables around t he exact FSI point were compared with predictions of four modern NN potenti als, calculated for H-2(n, np)n, i.e., without inclusion of the Coulomb int eraction. The resulting good overall agreement between the data and theory indicates the smallness of three-nucleon force (3NF) effects as well as the insignificance of the Coulomb force for this particular configuration and energy. This conclusion is supported by results of three-nucleon (3N) Fadde ev calculations performed with 2 pi-exchange Tucson-Melbourne 3NF with cuto ff parameter adjusted individually for each NN interaction to fit the exper imental triton binding. [S0556-2813(99)05612-5].