Calculation of phases of np- scattering up to Tlab=3 GeV for Reid68 and Reid93 potentials on the phase-function method

TL;DR

This paper introduces a phase-functions method for calculating nucleon-nucleon scattering phases up to 3 GeV, demonstrating good agreement with existing results and computing the total cross-section using Reid potentials.

Contribution

A new phase-functions method for np-scattering calculations is proposed and validated against established potentials and methods.

Findings

Phase shifts agree with other methods up to 350 MeV.

The method effectively computes the full np-scattering cross-section.

Results demonstrate the method's accuracy and applicability.

Abstract

For calculation of the single-channel nucleon-nucleon scattering a phase-functions method has been proposed. Using a phase-functions method the following phase shifts of np- scattering numerically for 1S0-, 1P1-, 3P0-, 3P1-, 1D2-, 3D2-, 1F3-, 3F3-, 1G4-, 3G4- states are calculated. The calculations has been performed using realistic nucleon-nucleon Reid68 and Reid93 potentials. Obtained phase shifts for energy up to 350 MeV are in good agreement with the results obtained in the framework of other methods. Using the obtained phase shifts we have calculated the full cross-section np- scattering.