We have measured the high-energy gamma-ray spectra from the fusion reactions 130 MeV O-16 + Mo-98 and 240 MeV Ti-48 + Ni-64, populating the Sn-114 and Sn-112 compound nuclei at the excitation energy of 110 MeV. The comparison of the spectra shows a similar to 36% enhancement of the gamma-ray yield in the Giant Dipole Resonance region (E gamma greater than or equal to 8 MeV) when the O-16-induced reaction is considered. This enhancement is interpreted as due to entrance channel effects related to the N/Z asymmetry between the target and the projectile.

Giant dipole emission in N/Z asymmetric heavy-ion reactions / Cinausero, M.; Gelli, N.; Viesti, G.; Lucarelli, Franco; Bazzacco, D.; Bortignon, P. F.; Brondi, A.; Fabris, D.; Farnea, E.; Fiore, E. M.; Fiore, L.; Fioretto, E.; Fornal, B.; La Rana, G.; Lunardon, M.; Napoli, D. R.; Nebbia, G.; Paticchio, V.; Prete, G.; Rossi Alvarez, C.; C. A., Ur; Vardaci, E.. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. A, NUCLEI, PARTICLES AND FIELDS. - ISSN 1124-1861. - STAMPA. - 111:(1998), pp. 613-619.

Giant dipole emission in N/Z asymmetric heavy-ion reactions

LUCARELLI, FRANCO;
1998

Abstract

We have measured the high-energy gamma-ray spectra from the fusion reactions 130 MeV O-16 + Mo-98 and 240 MeV Ti-48 + Ni-64, populating the Sn-114 and Sn-112 compound nuclei at the excitation energy of 110 MeV. The comparison of the spectra shows a similar to 36% enhancement of the gamma-ray yield in the Giant Dipole Resonance region (E gamma greater than or equal to 8 MeV) when the O-16-induced reaction is considered. This enhancement is interpreted as due to entrance channel effects related to the N/Z asymmetry between the target and the projectile.
1998
111
613
619
Cinausero, M.; Gelli, N.; Viesti, G.; Lucarelli, Franco; Bazzacco, D.; Bortignon, P. F.; Brondi, A.; Fabris, D.; Farnea, E.; Fiore, E. M.; Fiore, L.; Fioretto, E.; Fornal, B.; La Rana, G.; Lunardon, M.; Napoli, D. R.; Nebbia, G.; Paticchio, V.; Prete, G.; Rossi Alvarez, C.; C. A., Ur; Vardaci, E.
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/778221
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