Coulomb breakup of 23O

Authors :: Nociforo, C.
Jones, K.L.
Khiem, L.H.
Adrich, P.
Aumann, T.
Carlson, B.V.
Cortina-Gil, D.
Datta Pramanik, U.
Elze, Th.W.
Emling, H.
Geissel, H.
Hellström, M.
Kratz, J.V.
Kulessa, R.
Lange, T.
Leifels, Y.
Lenske, H.
Lubkiewicz, E.
Münzenberg, G.
Palit, R.
Source :: Physics Letters B. Jan2005, Vol. 605 Issue 1/2, p79-86. 8p.
Publication Year :: 2005
Abstract: Abstract: The ground-state structure of the near-drip-line nucleus 23O has been investigated in a one-neutron Coulomb breakup reaction. Differential cross sections for electromagnetic excitation of 23O projectiles (422 MeV/nucleon) incident on a lead target have been obtained from the measurement of the momenta of all breakup products including γ rays. The analysis of the deduced dipole-transition probability into the continuum infers a ground state configuration with a spectroscopic factor of 0.77(10) and thus a ground-state spin , resolving earlier conflicting experimental findings. Final-state interaction is of significant influence, an effective reduced scattering length for low-energy neutron scattering could be derived from the data. [Copyright &y& Elsevier]