Elastic and inelastic scattering of 24 MeV nucleons from oxygen isotopes

Isovector deformation and its link to the neutron shell closure

“…It is easy to deduce from the results of Ref. [4] the corresponding deformation lengths δ 0 ≈ 1.1 and δ 1 ≈ 2.6 ± 1.3 fm for the 2 + 1 state of 18 O. These values agree reasonably with the results of our folding + DWBA analysis (see Fig.…”

“…3). We recall that the IS and IV deformation parameters of the 2 + 1 state of 18 O have been determined long ago by Grabmayr et al [4] in a simultaneous DWBA analysis of the (p, p ′ ) and (n, n ′ ) inelastic scattering data at 24 MeV using the collective form factor (2). It is easy to deduce from the results of Ref.…”

Elastic and inelastic scattering of 7Li + 18O versus 7Li+16O

“…The 18 O deformation parameters δ λ , obtained in the present work and those previously known from Refs. [12][13][14][15][16][17][18][19][20], are listed in Table 1. The diagrams of the transitions to the excited states of 7 Li and 18 O which were included in the channels-coupling scheme, are shown in Fig.…”

Nucleon scattering analysis from90,92,594Zr and isospin decomposition of transition matrix elements for low-lying collective transitions

“…We use the procedure and equations of [12] to obtain isoscalar (6o) and isovector (6j deformation lengths in terms of 6,,, and 6vp, values. (See also [1][2][3][4][5][6][7][8][9][10][11][12][13] and [14].) To calculate the values for 6 0 and 61, values for the isoscalar (Vo) and isovector (1/1) terms in the optical model potential are needed.…”