Neutron-neutron intensity interferometry in E/A=45 MeV Ni-58+Al-27, Ni-nat, and Au-197 reactions - art. no. 037603

Authors
Ghetti, R Colonna, N Jakobsson, B Helgesson, J Martensson, J De Filippo, E Tagliente, G Lanzano, G Pantaleo, A Bellini, V Anzalone, A Cavallaro, S Celano, L D'Erasmo, G Di Santo, D Fiore, EM Geraci, M Giustolisi, F Kuznetsov, A Mahboub, D Merchez, F Palomba, M Paticchio, V Riera, G Sperduto, ML Sutera, C Urrata, M
Citation
R. Ghetti et al., Neutron-neutron intensity interferometry in E/A=45 MeV Ni-58+Al-27, Ni-nat, and Au-197 reactions - art. no. 037603, PHYS REV C, 6203(3), 2000, pp. 7603
Citations number
26
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C
ISSN journal
05562813 → ACNP
Volume
6203
Issue
3
Year of publication
2000
Database
ISI
SICI code
0556-2813(200009)6203:3<7603:NIIIEM>2.0.ZU;2-U
Abstract
Small angle neutron-neutron correlations have been measured for the E/A=45 MeV Ni-58+Al-27, Ni-nat, and Au-197 reactions. Two-neutron correlation func tions, both integrated and gated on the total momentum of the neutron pair, have been constructed. In order to explain these data, a fraction of fast ''dynamical" emission is needed in addition to slower evaporative emission. The overall emission time scale is shorter for the symmetric system, indic ating that the dynamical component is stronger in this case.