Measurements of scattering observables for the $pd$ break-up reaction

TL;DR

This paper reports high-precision measurements of scattering observables in proton-deuteron reactions, aiming to investigate three-nucleon force effects using advanced detection and theoretical analysis.

Contribution

It presents new experimental data on pd break-up reactions at 135 MeV with comprehensive phase space coverage, interpreted through state-of-the-art Faddeev calculations.

Findings

Evidence of three-nucleon force effects in scattering observables

High-precision data covering nearly the entire kinematic phase space

Comparison with theoretical models enhances understanding of nuclear interactions

Abstract

High-precision measurements of the scattering observables such as cross sections and analyzing powers for the proton-deuteron elastic and break-up reactions have been performed at KVI in the last two decades and elsewhere to investigate various aspects of the three-nucleon force (3NF) effects simultaneously. In 2006 an experiment was performed to study these effects in $\vec{p}+d$ break-up reaction at 135 MeV with the detection system, Big Instrument for Nuclear polarization Analysis, BINA. BINA covers almost the entire kinematical phase space of the break-up reaction. The results are interpreted with the help of state-of-the-art Faddeev calculations and are partly presented in this contribution.