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 / M., C., N., G., G., V., F., L., D., B., P. F., B., Brondi, A., D., F., E., F., E. M., F., L., F., E., F., B., F., LA RANA, G., M., L., D. R., N., G., N., V., P., G., P., C. R., A., et al.. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. A, NUCLEI, PARTICLES AND FIELDS. - ISSN 1826-9869. - STAMPA. - 111:6-7(1998), pp. 613-619.

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

BRONDI, AUGUSTO;LA RANA, GIOVANNI;VARDACI, EMANUELE
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
Giant dipole emission in N/Z asymmetric heavy-ion reactions / M., C., N., G., G., V., F., L., D., B., P. F., B., Brondi, A., D., F., E., F., E. M., F., L., F., E., F., B., F., LA RANA, G., M., L., D. R., N., G., N., V., P., G., P., C. R., A., et al.. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. A, NUCLEI, PARTICLES AND FIELDS. - ISSN 1826-9869. - STAMPA. - 111:6-7(1998), pp. 613-619.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/465912
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