The reactions 30Si + 170Er and 29Si + 170Er have been studied by the particle-γ coincidence method. The first chance α-particle spectrum from the decay of the 200Pb compound nucleus at 80 MeV excitation energy has been obtained by using a subtraction technique. The emission barrier distribution has been extracted from the first chance spectrum, using the second derivative analysis, commonly employed in sub-barrier fusion studies. The comparison with earlier systematics demonstrates that the α-particle emission barriers of the excited systems are lower than those observed in the inverse (capture) reactions on ground state nuclei.  2001 Elsevier Science B.V. All rights reserved.

Exploring the emission barriers in hot nuclei / G., V., V., R., D., F., M., L., G., N., M., C., E., F., G., P., Brondi, A., LA RANA, G., Moro, R.E.M., Vardaci, E., M., A., M. M., A., G., B., D., B., J. N., S., J. F., C., K., H., J. B., N., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 521:(2001), pp. 165-170. [10.1016/S0370-2693(01)01221-7]

Exploring the emission barriers in hot nuclei

BRONDI, AUGUSTO;LA RANA, GIOVANNI;MORO, RENATA EMILIA MARIA;VARDACI, EMANUELE;
2001

Abstract

The reactions 30Si + 170Er and 29Si + 170Er have been studied by the particle-γ coincidence method. The first chance α-particle spectrum from the decay of the 200Pb compound nucleus at 80 MeV excitation energy has been obtained by using a subtraction technique. The emission barrier distribution has been extracted from the first chance spectrum, using the second derivative analysis, commonly employed in sub-barrier fusion studies. The comparison with earlier systematics demonstrates that the α-particle emission barriers of the excited systems are lower than those observed in the inverse (capture) reactions on ground state nuclei.  2001 Elsevier Science B.V. All rights reserved.
2001
Exploring the emission barriers in hot nuclei / G., V., V., R., D., F., M., L., G., N., M., C., E., F., G., P., Brondi, A., LA RANA, G., Moro, R.E.M., Vardaci, E., M., A., M. M., A., G., B., D., B., J. N., S., J. F., C., K., H., J. B., N., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 521:(2001), pp. 165-170. [10.1016/S0370-2693(01)01221-7]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/342430
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