One-neutron knockout from 24–28Ne isotopes

C. Rodríguez-Tajes , D. Cortina-Gil , H. Álvarez-Pol , T. Aumann , E. Benjamim , J. Benlliure , M.J.G. Borge , M. Caamaño , E. Casarejos , A. Chatillon , K. Eppinger , T. Faestermann , M. Gascón , H. Geissel , R. Gernhäuser , B. Jonson , R. Kanungo , R. Krücken , T. Kurtukian Nieto (1) , K. Larsson , P. Maierbeck , T. Nilsson , C. Nociforo , C. Pascual-Izarra , A. Perea , D. Perez-Loureiro , A. Prochazka , H. Simon , K. Summerer , O. Tengblad , H. Weick , M. Winkler , M. Zhukov

1 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

One-neutron knockout reactions of 24–28Ne in a beryllium target have been studied in the Fragment Separator (FRS), at GSI. The results include inclusive one-neutron knockout cross-sections as well as longitudinal-momentum distributions of the knockout fragments. The ground-state structure of the neutron-rich neon isotopes was obtained from an analysis of the measured momentum distributions. The results indicate that the two heaviest isotopes, 27Ne and 28Ne, are dominated by a configuration in which a s1/2 neutron is coupled to an excited state of the 26Ne and 27Ne core, respectively.

Mots clés: Nuclear structure; Neutron-rich nuclei; One-neutron knockout; 24Ne; 25Ne; 26Ne; 27Ne; 28Ne

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

C. Rodríguez-Tajes, D. Cortina-Gil, H. Álvarez-Pol, T. Aumann, E. Benjamim, et al.. One-neutron knockout from 24–28Ne isotopes. Physics Letters B, 2010, 687, pp.26-30. ⟨10.1016/j.physletb.2010.03.006⟩. ⟨in2p3-00553699⟩