Article
First measurement of the asymmetry and the Gerasimov-Drell-Hearn integrand from the →3H (→γ,p)2H reaction at an incident photon energy of 29 MeV
Physical Review C
(2021)
Abstract
The first measurement of the →3He(→γ,p)2H process was performed at the High Intensity γ-ray Source (HIγS) facility at Triangle Universities Nuclear Laboratory using a circularly polarized, monoenergetic γ-ray beam and a longitudinally polarized 3He target. The spin-dependent asymmetry and the contribution from the two-body photodisintegration to the 3He Gerasimov-Drell-Hearn integrand are extracted and compared with state-of-the-art three-nucleon system calculations at the incident photon energy of 29 MeV. The data are in general agreement with the various theoretical predictions based on the Siegert theorem or on explicit inclusion of meson-exchange currents.
Disciplines
Publication Date
March, 2021
DOI
https://doi.org/10.1103/PhysRevC.103.034311
Citation Information
G. Laskaris, . ..., Todd Averett and et al.. "First measurement of the asymmetry and the Gerasimov-Drell-Hearn integrand from the →3H (→γ,p)2H reaction at an incident photon energy of 29 MeV" Physical Review C Vol. 103 (2021) Available at: http://works.bepress.com/todd-averett/13/