Observation of isoscalar multipole strengths in exotic doubly-magic $^{56}$Ni in inelastic α scattering in inverse kinematics - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physics Letters B Année : 2015

Observation of isoscalar multipole strengths in exotic doubly-magic $^{56}$Ni in inelastic α scattering in inverse kinematics

J. Gibelin
N.L. Achouri
H. Akimune
  • Fonction : Auteur
B. Bastin
K. Boretzky
  • Fonction : Auteur
M. Fujiwara
  • Fonction : Auteur
U. Garg
  • Fonction : Auteur
K. Mazurek
  • Fonction : Auteur
M.A. Najafi
  • Fonction : Auteur
T. Roger
H. Savajols
C. Stodel
L. Suen
  • Fonction : Auteur

Résumé

The Isoscalar Giant Monopole Resonance (ISGMR) and the Isoscalar Giant Dipole Resonance (ISGDR) compression modes have been studied in the doubly-magic unstable nucleus $^{56}$Ni. They were measured by inelastic α-particle scattering in inverse kinematics at 50 MeV/u with the MAYA active target at the GANIL facility. The centroid of the ISGMR has been obtained at Ex = 19.1 ± 0.5 MeV. Evidence for the low-lying part of the ISGDR has been found at Ex = 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 α-particle scattering as a suitable probe for exciting the ISGMR and the ISGDR modes in radioactive isotopes in inverse kinematics.
Fichier principal
Vignette du fichier
1-s2.0-S0370269315008199-main.pdf (932.01 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

in2p3-01222563 , version 1 (20-10-2016)

Identifiants

Citer

S. Bagchi, J. Gibelin, M.N. Harakeh, N. Kalantar-Nayestanaki, N.L. Achouri, et al.. Observation of isoscalar multipole strengths in exotic doubly-magic $^{56}$Ni in inelastic α scattering in inverse kinematics. Physics Letters B, 2015, 751, pp.371-375. ⟨10.1016/j.physletb.2015.10.060⟩. ⟨in2p3-01222563⟩
70 Consultations
3 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More