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Implications for (d,p) reaction theory from nonlocal dispersive optical model analysis of Ca40(d,p)Ca41

Waldecker, SJ and Timofeyuk, N (2016) Implications for (d,p) reaction theory from nonlocal dispersive optical model analysis of Ca40(d,p)Ca41 Physical Review C: Nuclear Physics, 94 (3), 034609.

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Abstract

The nonlocal dispersive optical model (NLDOM) nucleon potentials are used for the first time in the adiabatic analysis of a (d,p) reaction to generate distorted waves both in the entrance and exit channels. These potentials have been designed and fitted in [Phys. Rev. Lett. 112, 162502 (2014)] to constrain relevant single-particle physics in a consistent way by imposing the fundamental properties, such as nonlocality, energy-dependence and dispersive relations, that follow from the complex nature of nuclei. However, the NLDOM prediction for the 40Ca(d,p)41Ca cross sections at low energy, typical for some modern radioactive beam ISOL facilities, is about 70% higher than the experimental data despite being reduced by the NLDOM spectroscopic factor of 0.73. This overestimation comes most likely either from insufficient absorption or due to constructive interference between ingoing and outgoing waves. This indicates strongly that additional physics arising from many-body effects is missing in the widely used current versions of (d,p) reaction theories.

Item Type: Article
Subjects : Physics
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmailORCID
Waldecker, SJUNSPECIFIEDUNSPECIFIED
Timofeyuk, NUNSPECIFIEDUNSPECIFIED
Date : 9 September 2016
Identification Number : 10.1103/PhysRevC.94.034609
Copyright Disclaimer : ©2016 American Physical Society. All rights reserved.
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 12 Aug 2016 08:28
Last Modified : 29 Nov 2016 18:08
URI: http://epubs.surrey.ac.uk/id/eprint/811685

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