Interaction of He-8 with Pb-208 at near-barrier energies: He-4 and He-6 production (CROSBI ID 255987)
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Marquínez-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. ; Borge, M. J. G. ; 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. ; Soić, Neven ; Standyło, Ł. ; Strojek, I. ; Tengblad, O. ; Wolski, R. ; Abou-Haidar, Z.
engleski
Interaction of He-8 with Pb-208 at near-barrier energies: He-4 and He-6 production
Angular 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.
eavy-ion reactions ; elastic-scattering ; Coulomb barrier
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