  The experimental level structure of 134Sb is compared with the results of a
shell-model calculation in which the two-body matrix elements of the effective
interaction have been derived from the CD-Bonn nucleon-nucleon potential. The
experimental data, including the very low-lying first-excited 1- state, are
remarkably well reproduced by the theory. The results of this paper complement
those of our previous studies on 135Sb and 134Sn, showing that our effective
interaction is well suited to describe 132Sn neighbors beyond N=82. The various
terms which contribute to the matrix elements of the proton-neutron effective
interaction are examined and their relative importance is evidenced.
