Evolution of single-particle strength in neutron-rich 71Cu
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ISSN: 0370-2693
E-ISSN: 1873-2445
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Abstract
The strength functions of the π f5/2, π p3/2 and π f7/2 orbitals in neutron-rich 71Cu were obtained in
a 72Zn(d,3He)71Cu proton pick-up reaction in inverse kinematics using a radioactive beam of 72Zn at
38 MeV/u. A dedicated set-up was developed to overcome the experimental challenges posed by the
low cross section of the reaction and the low energy of the outgoing 3He particles. The excitationenergy
spectrum was reconstructed and spectroscopic factors were obtained after analysis of the angular
distributions with the finite-range Distorted-Wave Born Approximation (DWBA). The results show that
unlike for the π f5/2 orbital and contrary to earlier interpretation, the π f7/2 single-particle strength
distribution is not appreciably affected by the addition of neutrons beyond N = 40
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Morfouace, P., Franchoo, S., Sieja, K., Matea, I., Nalpas, L., Niikura, M., ... & Beaumel, D. (2015). Evolution of single-particle strength in neutron-rich 71Cu. Physics Letters B, 751, 306-310
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https://doi.org/10.1016/j.physletb.2015.10.064Sponsors
The authors are thankful to the Ganil accelerator staff, informatics service and to the IPN design office. We are grateful for the grant of the Romanian National Authority for Scientific Research, CNCS – UEFISCDI, project number PN-II-ID-PCE-2011-3-048, to the grant FPA2010-22131-C02-01 from the Spanish government and to the OTKA contract No. K100835
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© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)