Perturbative correction to the adiabatic approximation for (d, p) reactions. (5th August 2021)

• Record Type: Journal Article
• Authors: Moschini, L; Timofeyuk, N K; Johnson, R C
• Is Part Of: Journal of physics. Volume 48:Number 9(2021)
• Publication Date: 2021-08-05
• Subjects: perturbative correction -- adiabatic distorted wave approximation (ADWA) -- deuteron stripping -- nonlocal potential; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/1361-6471/ac105d
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: The adiabatic distorted wave approximation (ADWA) is widely used by the nuclear community to analyse deuteron stripping ( d, p ) experiments. It provides a quick way to take into account an important property of the reaction mechanism: deuteron breakup. In this work we provide a numerical quantification of a perturbative correction to this theory, recently proposed in Johnson (2014 J. Phys. G: Nucl. Part. Phys. 41 094005) for separable rank-one nucleon–proton potentials. The correction involves an additional, nonlocal, term in the effective deuteron–target ADWA potential in the entrance channel. We test the calculations with perturbative corrections against continuum-discretized coupled channel predictions which treat deuteron breakup exactly.