Abstract
Quasifree one-proton knockout reactions have been employed in inverse
kinematics for a systematic study of the structure of stable and exotic
oxygen isotopes at the (RB)-B-3/LAND setup with incident beam energies
in the range of 300-450 MeV/u. The oxygen isotopic chain offers a large
variation of separation energies that allows for a quantitative
understanding of single-particle strength with changing isospin
asymmetry. Quasifree knockout reactions provide a complementary approach
to intermediate-energy one-nucleon removal reactions. Inclusive cross
sections for quasifree knockout reactions of the type O-A(p,2p)NA-1 have
been determined and compared to calculations based on the eikonal
reaction theory. The reduction factors for the single-particle strength
with respect to the independent-particle model were obtained and
compared to state-of-the-art ab initio predictions. The results do not
show any significant dependence on proton-neutron asymmetry.
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