Calculation of phases of np- scattering up to Tlab=3 GeV for potentials Argonne group on the phase-function method

TL;DR

This paper introduces a phase-functions method for calculating nucleon-nucleon scattering phase shifts up to 3 GeV, demonstrating good agreement with existing methods and enabling accurate cross-section calculations.

Contribution

The paper presents a novel phase-functions method for np-scattering calculations and applies it to various realistic potentials up to 3 GeV.

Findings

Phase shifts agree with other methods.

Cross-sections calculated accurately.

Method effective for high-energy scattering.

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 a 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 potentials Argonne group (Av18, Av14sscc, Av8', Av8'sscc, Av6', Av4', Av2'). Obtained phase shifts 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.