pn-Pair coupling in the (gamma, pn) reaction at 72 MeV

Citation
L. Isaksson et al., pn-Pair coupling in the (gamma, pn) reaction at 72 MeV, PHYS REV L, 83(16), 1999, pp. 3146-3149
Citations number
24
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
83
Issue
16
Year of publication
1999
Pages
3146 - 3149
Database
ISI
SICI code
0031-9007(19991018)83:16<3146:PCIT(P>2.0.ZU;2-Q
Abstract
The O-16(gamma, pn) reaction was measured at E-gamma similar to 72 MeV with resolution sufficient to distinguish the low-lying states of the residual N-14 nucleus. Cross sections averaged over the acceptance of the detector s ystem were determined for each of the resolved states. The relative populat ion of residual states indicates that proton-neutron pairs coupled to (J(pi ), T) = (0(+), 1) play a minor role in the photon absorption process compar ed to (1(+), 0) pairs and that both L = 0 and L = 2 pairs participate in th e reaction.