Hard Photodisintegration of 3He

TL;DR

This paper investigates large angle photodisintegration of 3He using the hard rescattering model, providing parameter-free cross section predictions that align well with experimental data and offering insights into reaction mechanisms.

Contribution

It applies the hard rescattering model to 3He photodisintegration, producing parameter-free cross section predictions consistent with experiments and extending understanding of nucleon interactions.

Findings

Calculated pp breakup cross section agrees with experimental data.

Predicted energy dependence matches observed trends.

Provides predictions on spectator momentum and helicity transfer.

Abstract

Large angle photodisintegration of two nucleons from the 3He nucleus is studied within the framework of the hard rescattering model (HRM). In the HRM the incoming photon is absorbed by one nucleon's valence quark that then undergoes a hard rescattering reaction with a valence quark from the second nucleon producing two nucleons emerging at large transverse momentum . Parameter free cross sections for pp and pn break up channels are calculated through the input of experimental cross sections on pp and pn elastic scattering. The calculated cross section for pp breakup and its predicted energy dependency are in good agreement with recent experimental data. Predictions on spectator momentum distributions and helicity transfer are also presented.