Transfer reaction code with nonlocal interactions

TL;DR

This paper introduces NLAT, a computational code that accurately calculates transfer reaction cross sections involving nonlocal interactions within the adiabatic distorted wave approximation, applicable to deuteron-induced reactions at 10-70 MeV.

Contribution

The paper presents a novel iterative method for solving nonlocal differential equations in transfer reactions, enabling precise cross section calculations with nonlocal interactions.

Findings

Provides differential angular distributions for transfer reactions

Achieves 4% accuracy in cross section calculations

Applicable for deuteron energies between 10-70 MeV

Abstract

We present a suite of codes (NLAT for nonlocal adiabatic transfer) to calculate the transfer cross section for single-nucleon transfer reactions, $(d,N)$ or $(N,d)$, including nonlocal nucleon-target interactions, within the adiabatic distorted wave approximation. For this purpose, we implement an iterative method for solving the second order nonlocal differential equation, for both scattering and bound states. The final observables that can be obtained with NLAT are differential angular distributions for the cross sections of $A(d,N)B$ or $B(N,d)A$. Details on the implementation of the T-matrix to obtain the final cross sections within the adiabatic distorted wave approximation method are also provided. This code is suitable to be applied for deuteron induced reactions in the range of $E_d=10-70$ MeV, and provides cross sections with $4\%$ accuracy.