Evidence of strong effects of the 11Be halo structure on reaction processes at energies around the Coulomb barrier

A Di Pietro; F Amorini; P Figuera; M Fisichella; M Lattuada; A Musumarra; M Papa; M G Pellegriti; G Randisi; F Rizzo; D Santonocito; G Scalia; V Scuderi; E Strano; D Torresi; L Acosta; I Martel; F Perez-Bernal; M J G Borge; A Maira Vidal; O Tengblad; L M Fraile; H Jeppesen; D Voulot; F Wenander; J Gomez-Camacho; M Milin; R Raabe; M Zadro

doi:10.1088/1742-6596/312/8/082020

Journal of Physics: Conference Series

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Evidence of strong effects of the ¹¹Be halo structure on reaction processes at energies around the Coulomb barrier

A Di Pietro¹, F Amorini^1,2, P Figuera¹, M Fisichella^1,2, M Lattuada^1,2, A Musumarra^1,8, M Papa¹, M G Pellegriti^1,2, G Randisi^1,2,11, F Rizzo^1,2, D Santonocito¹, G Scalia^1,2, V Scuderi^1,2, E Strano^1,2, D Torresi^1,2, L Acosta³, I Martel³, F Perez-Bernal³, M J G Borge⁴, A Maira Vidal⁴, O Tengblad⁴, L M Fraile^5,12, H Jeppesen^5,13, D Voulot⁵, F Wenander⁵, J Gomez-Camacho⁶, M Milin⁷, R Raabe⁹ and M Zadro¹⁰

Published under licence by IOP Publishing Ltd
Journal of Physics: Conference Series, Volume 312, Nuclear Reactions Citation A Di Pietro et al 2011 J. Phys.: Conf. Ser. 312 082020 DOI 10.1088/1742-6596/312/8/082020

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¹ INFN-Laboratori Nazionali del Sud and Sezione di Catania, Italy

² Dipartimento di Fisica ed Astronomia Universitá di Catania, Catania, Italy

³ Departamento de Fisica Aplicada Universidad de Huelva, Huelva, Spain

⁴ Instituto de Estructura de la Materia CSIC, Madrid, Spain

⁵ ISOLDE, CERN, CH-1211 Geneva 23, Switzerland

⁶ Departamento de Fisica Atomica Molecular Nuclear Universidad de Sevilla, and Centro Nacional de Aceleradores, Sevilla, Spain

⁷ Department of Physics Faculty of Science University of Zagreb, Zagreb, Croatia

⁸ Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria Universitá di Catania, Catania, Italy

⁹ Instituut voor Kern-en Stralingsfysica K.U.Leuven, Belgium

¹⁰ Division of Experimental Physics Ruder Bošković Institute, Zagreb, Croatia

¹¹ present address: LPC-ENSICAEN, IN2P3-CNRS and Université de Caen, France

¹² present address: Departamento de Fysica Atomica, Molecular y Nuclear, Universidad Complutense,Madrid, Spain

¹³ present address: Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, USA

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Abstract

The collision induced by the three Beryllium isotopes, ^9,10,11Be, on ⁶⁴Zn target were investigated at Ec.m. ≈ 1.4 the Coulomb barrier. Elastic scattering angular distributions were measured for the ^9,10Be collisions whereas, in the ¹¹Be case the quasielastic scattering angular distribution was obtained. A strong damping of the quasielastic cross-section was observed in the ¹¹Be case, especially in the angular range around the Coulomb-nuclear interference peak. In this latter case a large total-reaction cross-section is found, more than a factor of two larger than the ones extracted in the reactions induced by the non-halo Beryllium isotopes. A large contribution to the total-reaction cross-section in the ¹¹Be case could be attributed to transfer and/or break-up events.

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Evidence of strong effects of the 11Be halo structure on reaction processes at energies around the Coulomb barrier

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Abstract

Evidence of strong effects of the ¹¹Be halo structure on reaction processes at energies around the Coulomb barrier