First Measurements of Spin-Dependent Double-Differential Cross Sections and the Gerasimov-Drell-Hearn Integrand from (3)(H)over-right-arrowe((gamma)over-right-arrow, n)pp at Incident Photon Energies of 12.8 and 14.7 MeV

Authors

G. Laskaris
Q. Ye
B. Lalremruata
Todd Averett, William & MaryFollow

Document Type

Article

Department/Program

Physics

Journal Title

Physical Review Letters

Pub Date

2013

Volume

110

Issue

20

Abstract

The first measurement of the three-body photodisintegration of longitudinally polarized He-3 with a circularly polarized gamma-ray beam was carried out at the High Intensity gamma-ray Source facility located at Triangle Universities Nuclear Laboratory. The spin-dependent double-differential cross sections and the contributions from the three-body photodisintegration to the He-3 Gerasimov-Drell-Hearn integrand are presented and compared with state-of-the-art three-body calculations at the incident photon energies of 12.8 and 14.7 MeV. The data reveal the importance of including the Coulomb interaction between protons in three-body calculations.

Recommended Citation

Laskaris, G.; Ye, Q.; Lalremruata, B.; and Averett, Todd, First Measurements of Spin-Dependent Double-Differential Cross Sections and the Gerasimov-Drell-Hearn Integrand from (3)(H)over-right-arrowe((gamma)over-right-arrow, n)pp at Incident Photon Energies of 12.8 and 14.7 MeV (2013). Physical Review Letters, 110(20).
10.1103/PhysRevLett.110.202501

DOI

10.1103/PhysRevLett.110.202501