Journal
PHYSICAL REVIEW C
Volume 99, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.99.064612
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Funding
- United Kingdom Science and Technology Facilities Council (STFC) [ST/P005314/1]
- STFC [ST/L005743/1, ST/P005314/1] Funding Source: UKRI
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A widely accepted practice for treating deuteron breakup in A(d, p)B reactions relies on solving a three-body A + n + p Schrodinger equation with pairwise A-n, A-p and n-p interactions. However, it was shown in Phys. Rev. C 89, 024605 (2014) that projection of the many-body A + 2 wave function into the three-body A + n + p channel results in a complicated three-body operator that cannot be reduced to a sum of pairwise potentials. It contains explicit contributions from terms that include interactions between the neutron and proton via excitation of the target A. Such terms are normally neglected. We estimate the first-order contribution of these induced three-body terms and show that applying the adiabatic approximation to solving the A + n + p model results in a simple modification of the two-body nucleon optical potentials. We illustrate the role of these terms for the case of Ca-40(d, p)Ca-41 transfer reactions at incident deuteron energies of 11.8, 20, and 56 MeV, using several parametrizations of nonlocal optical potentials.
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