Experimental study of the collision 11Be + 64Zn around the Coulomb barrier

Di Pietro, A. and Scuderi, V. and Moro, A. M. and Acosta, L. and Amorini, F. and Borge, M. J. G. and Figuera, P. and Fisichella, M. and Fraile, L. M. and Gomez-Camacho, J. and Jeppesen, H. and Lattuada, M. and Martel, I. and Milin, Matko and Musumarra, A. and Papa, M. and Pellegriti, M. G. and Perez-Bernal, F. and Raabe, R. and Randisi, G. and Rizzo, F. and Scalia, G. and Tengblad, O. and Torresi, D. and Vidal, A. Maira and Voulot, D. and Wenander, F. and Zadro, Mile (2012) Experimental study of the collision 11Be + 64Zn around the Coulomb barrier. Physical Review C, 85 (5). pp. 54607-11. ISSN 0556-2813

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Abstract

In this paper details of the experimental procedure and data analysis of the collision of 11Be+64Zn around the Coulomb barrier are described and discussed in the framework of different theoretical approaches. In a previous work [ A. Di Pietro et al. Phys. Rev. Lett. 105 022701 (2010)], the elastic scattering angular distribution of the collisions 9, 10Be+64Zn as well as the angular distribution for the quasielastic scattering and transfer/breakup cross sections for the 11Be+64Zn reaction were briefly reported. The suppression of the quasielastic angular distribution in the Coulomb-nuclear interference angular region observed in the collision of the 11Be halo nucleus with respect to the other two beryllium isotopes was interpreted as being caused by a long-range absorption owing to the long decay length of the 11Be wave function. In this paper, new continuum-discretized coupled-channel calculations of the 11Be+64Zn reaction are reported in the attempt to interpret the effect of coupling with the breakup channels on the measured cross sections. The calculations show that the observed suppression of the Coulomb-nuclear interference peak is caused by a combined effect of Coulomb and nuclear couplings to the breakup channels.

Item Type: Article
Keywords: 11Be, quasielastic scattering, halo effect, CDCC calculations
Date: May 2012
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2012) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 098-1191005-2890
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 11 Jul 2014 07:45
Last Modified: 23 Feb 2016 16:08
URI: http://digre.pmf.unizg.hr/id/eprint/2162

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