par Angulo Perez, Carmen 
;Azzouz, Malika ;Descouvemont, Pierre ;Tabacaru, Gabriel;Baye, Daniel Jean ;Cogneau, Michel;Couder, Manoël;Davinson, Thomas;Di Pietro, Alessia;Figuera, Pierpaolo Paolo;Gaelens, Michel;Leleux, Pol;Loiselet, Marc;Ninane, A.;de Oliveira Santos, François;Pizzone, Rosario Gianluca;Ryckewaert, Guido;de Séréville, Nicolas;Vanderbist, Francis
Référence Nuclear physics. A, 716, 24, page (211-229)
Publication Publié, 2003-03
;Azzouz, Malika ;Descouvemont, Pierre ;Tabacaru, Gabriel;Baye, Daniel Jean ;Cogneau, Michel;Couder, Manoël;Davinson, Thomas;Di Pietro, Alessia;Figuera, Pierpaolo Paolo;Gaelens, Michel;Leleux, Pol;Loiselet, Marc;Ninane, A.;de Oliveira Santos, François;Pizzone, Rosario Gianluca;Ryckewaert, Guido;de Séréville, Nicolas;Vanderbist, Francis Référence Nuclear physics. A, 716, 24, page (211-229)
Publication Publié, 2003-03
Article révisé par les pairs
| Résumé : | The 7Be + p elastic cross section has been measured at the Centre de Recherches du Cyclotron RIB facility at Louvain-la-Neuve in the c.m. energy region from 0.3 to 0.75 MeV by bombarding a proton-rich target with a radioactive 7Be beam. The recoil protons have been detected in the angular range θc.m. = 120.2°-131.1° and θc.m. = 156.6°-170.2° using the LEDA system. From a R-matrix analysis of the cross section data, we obtain the energy and the width of the 1+ resonance (Ex = 0.77 MeV). The ℓ = 0 scattering lengths a01 = 25±9 fm (channel spin I = 1) and a02 =-7 ± 3 fm (channel spin I = 2) have been deduced. They are compared to values expected from charge-symmetry properties. Implications on the low energy S-factor of the 7Be(p,γ)8B reaction are discussed. © 2003 Elsevier Science B.V. All rights reserved. |
