6He + 9Be reactions at 16.8 MeV

M. Majer; R. Raabe; M. Milin; C. Angulo; J. Cabrera; E. Casarejos; J. L. Charvet; D. Escrig; A. Gillibert; Th. Keutgen; V. Lapoux; L. Nalpas; A. Ninane; A. Obertelli; N. A. Orr; F. Skaza; J. L. Sida; S. I. Sidorchuk; D. Smirnov; R. Wolski

doi:10.1140/epja/i2010-10906-2

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2023 Impact factor 2.6

Hadrons and Nuclei

Eur. Phys. J. A (2010) 43: 153-158
https://doi.org/10.1140/epja/i2010-10906-2

Regular Article - Experimental Physics

⁶He + ⁹Be reactions at 16.8 MeV

M. Majer¹, R. Raabe², M. Milin¹^*, C. Angulo³, J. Cabrera⁴, E. Casarejos⁴, J. L. Charvet⁵, D. Escrig⁶, A. Gillibert⁵, Th. Keutgen⁴, V. Lapoux⁵, L. Nalpas⁵, A. Ninane⁴, A. Obertelli⁵, N. A. Orr⁷, F. Skaza⁵, J. L. Sida⁵, S. I. Sidorchuk⁸, D. Smirnov⁹ and R. Wolski⁸^,10

¹ Department of Physics, Faculty of Science, University of Zagreb, HR-10000, Zagreb, Croatia
² GANIL, CEA/DSM - CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076, Caen Cedex 5, France
³ Tractebel Engineering, Avenue Ariane 7, B-1200, Brussels, Belgium
⁴ Centre de Recherches du Cyclotron, Université Catholique de Louvain, B-1348, Louvain-la-Neuve, Belgium
⁵ CEA-Saclay, DSM/IRFU/SPhN, F-91191, Gif-sur-Yvette Cedex, France
⁶ Instituto de Estructura de la Materia, CSIC, E-28040, Madrid, Spain
⁷ LPC-Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050, Caen Cedex, France
⁸ Flerov Laboratory of Nuclear Reactions, JINR, RU-141980, Dubna, Russia
⁹ Instituut voor Kern-en Stralingsfysica, K.U. Leuven, B-3001, Leuven, Belgium
¹⁰ Institute of Nuclear Physics, PL-31342, Krakow, Poland

^* e-mail: matko.milin@phy.hr

Received: 27 August 2009
Revised: 17 November 2009
Accepted: 7 December 2009
Published online: 9 January 2010

Abstract

Reactions of a 16.8 MeV ⁶He beam with a ⁹Be target have been investigated using highly segmented detector setup covering a large solid angle. Data on elastic and quasi-free scattering, as well as two-neutron transfer, are reported. The results for elastic scattering are fairly well reproduced by a CDCC calculation, in agreement with the interpretation of a breakup effect already observed for the scattering of ⁶He on other light targets. Exotic quasi-free scattering of ⁶He on -cluster in ⁹Be is clearly observed. Inclusive and coincident events were used to extract information on the two-neutron transfer reaction ⁹Be(⁶He,)¹¹Be . Sequential decay of the ¹¹Be state at the excitation energy MeV through different channels is discussed.