Experimental studies of the three nucleon system dynamics in the proton induced deuteron breakup at 108 MeV

TL;DR

This study measures differential cross sections for the deuteron breakup reaction at 108 MeV, providing experimental data that highlights Coulomb effects and three-nucleon force influences in three-nucleon system dynamics.

Contribution

First comprehensive measurement of deuteron breakup cross sections at 108 MeV with detailed angular configurations and comparison to advanced theoretical models.

Findings

Significant Coulomb interaction effects observed.

Small but notable three-nucleon force effects detected.

Data agrees with theoretical calculations within uncertainties.

Abstract

The differential cross sections for the $^2$H(p,pp)n reaction have been measured for 84 angular configurations of the outgoing protons in the range of polar angles from 13 to 33 degrees with a proton beam of 108 MeV. Data have been collected in the Cyclotron Center Bronowice (CCB) at the Institute of Nuclear Physics PAS in Cracow, using the BINA detector setup. Analysis leading to determination of the breakup cross section values is described. Absolute normalization is obtained by normalization to the simultaneously measured $^2$H(p,d)p scattering events.Experimental results are compared to the state-of-the-art theoretical calculations. Global analysis shows significant influence of the Coulomb interaction and small effects of three nucleon force in the studied phase space region.