Study of Three-Nucleon Dynamics in the dp breakup collisions using the WASA detector

TL;DR

This study measures the differential cross section of the 1H(d,pp)n breakup reaction at 340 MeV using the WASA detector, providing extensive data to test theoretical models of three-nucleon dynamics.

Contribution

It presents a comprehensive experimental dataset of proton-proton coincidences in deuteron breakup at intermediate energy, enabling detailed comparison with advanced theoretical predictions.

Findings

Measured around 5600 data points of differential cross sections.

Compared experimental data with various theoretical models including three-nucleon forces.

Provided insights into the validity of current nucleon-nucleon and three-nucleon interaction models.

Abstract

Differential cross section for the 1H(d,pp)n breakup reaction at deuteron beam energy of 340 MeV has been measured with the use of WASA detector at COSY-Juelich. The set of proton-proton coincidences registered at Forward Detector has been analysed on dense grid of kinematic variables, giving in total around 5600 data points. The cross section data are compared to theoretical predictions based on the state-of-the-art nucleon-nucleon potentials, combined with three-nucleon force, Coulomb interaction or carried out in a relativistic regime.