Triton photodisintegration in three-dimensional approach

TL;DR

This paper develops a three-dimensional Faddeev approach to study photodisintegration of the triton, incorporating exchange currents and avoiding partial wave decomposition, with promising results for cross section calculations.

Contribution

It introduces a 3D Faddeev framework for triton photodisintegration, including exchange currents derived from AV18 without partial wave expansion.

Findings

Accurate total cross sections for photon energies below 30 MeV.

Successful implementation of 3D approach with AV18 potential.

Benchmark comparisons show promising agreement with expected results.

Abstract

Two- and three- particles photodisintegration of the triton is investigated in a three-dimensional (3D) Faddeev approach. For this purpose the Jacobi momentum vectors for three particles system and spin-isospin quantum numbers of the individual nucleons are considered. Based on this picture the three-nucleon Faddeev integral equations with the two-nucleon interaction are formulated without employing the partial wave decomposition. The single nucleon current as well as $\pi-$ and $\rho-$ like exchange currents are used in an appropriate form to be employed in 3D approach. The exchange currents are derived from AV18 NN force. The two-body t-matrix, Deuteron and Triton wave functions are calculated in the 3D approach by using AV18 potential. Benchmarks are presented to compare the total cross section for the two- and three- particles photodisintegration in the range of $E_{\gamma}<30 MeV$. The 3D Faddeev approach shows promising results.