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Interaction of He-8 with Pb-208 at near-barrier energies: He-4 and He-6 production

AuthorsMarquínez-Durán, G.; Martel, I.; Sánchez-Benítez, A. M.; Acosta, L.; Aguado, J. L.; Berjillos, R.; Pinto, A. R.; García, T.; Dueñas, J. A.; Rusek, K.; Keeley, N.; Kemper, K. W.; Álvarez, M. A. G. ; García Borge, María José ; Chbihi, A.; Cruz, C. ; Cubero, M. ; Fernández-García, J. P.; Fernández-Martínez, B. ; Flores, J. L.; Gómez-Camacho, J.; Labrador, J. A. ; Marqués, F. M.; Moro, A. M.; Mazzocco, M.; Pakou, A.; Parkar, V. V.; Patronis, N.; Pesudo, V. ; Pierroutsakou, D.; Raabe, R.; Silvestri, R.; Soic, N.; Standylo, L.; Strojek, I.; Tengblad, Olof ; Wolski, R.; Abou-Haidar, Z.
Issue Date28-Sep-2018
PublisherAmerican Physical Society
CitationPhysical Review C 98: 034615 (2018)
AbstractAngular distributions for the inclusive He-4 and He-6 production cross sections in the He-8 + Pb-208 system at incident energies of 16 and 22 MeV measured at the SPIRAL facility of the GANIL laboratory are presented. Using a combination of kinematical arguments and distorted wave Born approximation (DWBA) calculations, neutron transfer reactions were inferred to be the dominant contributors to both inclusive cross sections. Model-dependent values for the ratios of two- to one-neutron stripping, sigma(2n)/sigma(1n), were derived and compared with previous results for He-8 and He-6 projectiles incident on other heavy targets. Three- and four-neutron stripping were inferred to be the main processes leading to He-4 production, although the exact mechanism remains to be elucidated.
Description7 pags., 5 figs., 3 tabs.
Publisher version (URL)https://doi.org/10.1103/PhysRevC.98.034615
Identifiersdoi: 10.1103/PhysRevC.98.034615
issn: 2469-9985
Appears in Collections:(CNA) Artículos
(CFMAC-IEM) Artículos
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