Failure of the Coexistence Model to Account for Observed Two-Neutron Pickup Cross Sections

E. G. Adelberger; P. T. Debevec; G. T. Garvey; R. Ohanian

doi:10.1103/PhysRevLett.29.883

Failure of the Coexistence Model to Account for Observed Two-Neutron Pickup Cross Sections

E. G. Adelberger, P. T. Debevec, G. T. Garvey, and R. Ohanian

Phys. Rev. Lett. 29, 883 – Published 25 September 1972

Abstract

We have studied the ( $p, t$ ) reaction on ${}^{18}O$ and ${}^{42}{Ca}$ at $E_{p} = 41.7$ MeV. The observed yields to the $0^{+}$ , $T = 0$ states in ${}^{16}O$ and ${}^{40}{Ca}$ are at variance with distorted-wave Born-approximation predictions using the coexistence model to describe the initial and final states of the targets. By use of wave functions which employ a more extensive set of configurations, satisfactory agreement with the observed yields is achieved for the reaction ${}^{18}O (p, t) {}^{16}O$ .

Received 14 August 1972

DOI:https://doi.org/10.1103/PhysRevLett.29.883

Authors & Affiliations

E. G. Adelberger^*, P. T. Debevec^†, G. T. Garvey, and R. Ohanian

Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08540

^*Present address: Physics Department, University of Washington, Seattle, Wash. 98105.
^†Present address: Argonne National Laboratory, Argonne, Ill. 60439.