Observation of isoscalar multipole strengths in exotic doubly-magic Ni-56 in inelastic alpha scattering in inverse kinematics

S. Bagchi*, J. Gibelin, M. N. Harakeh, N. Kalantar-Nayestanaki, N. L. Achouri, H. Akimune, B. Bastin, K. Boretzky, H. Bouzomita, M. Caamano, L. Caceres, S. Damoy, F. Delaunay, B. Fernandez-Dominguez, M. Fujiwara, U. Garg, G. F. Grinyer, O. Kamalou, E. Khan, A. KrasznahorkayG. Lhoutellier, J. F. Libin, S. Lukyanov, K. Mazurek, M. A. Najafi, J. Pancin, Y. Penionzhkevich, L. Perrot, R. Raabe, C. Rigollet, T. Roger, S. Sambi, H. Savajols, M. Senoville, C. Stodel, L. Suen, J. C. Thomas, M. Vandebrouck, J. Van de Walle

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

11 Citaten (Scopus)
140 Downloads (Pure)


The Isoscalar Giant Monopole Resonance (ISGMR) and the Isoscalar Giant Dipole Resonance (ISGDR) compression modes have been studied in the doubly-magic unstable nucleus Ni-56. They were measured by inelastic alpha-particle scattering in inverse kinematics at 50MeV/u with the MAYA active target at the GANIL facility. The centroid of the ISGMR has been obtained at E-x= 19.1 +/- 0.5 MeV. Evidence for the low-lying part of the ISGDR has been found at E-x = 17.4 +/- 0.7 MeV. The strength distribution for the dipole mode shows similarity with the prediction from the Hartree-Fock (HF) based random-phase approximation (RPA)[1]. These measurements confirm inelastic a-particle scattering as a suitable probe for exciting the ISGMR and the ISGDR modes in radioactive isotopes in inverse kinematics. (C) 2015 The Authors. Published by Elsevier B.V.

Originele taal-2English
Pagina's (van-tot)371-375
Aantal pagina's5
TijdschriftPhysics Letters B
StatusPublished - 17-dec-2015

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