First measurements of spin-dependent double-differential cross sections and the Gerasimov-Drell-Hearn Integrand from 3He(γ,n)pp at incident photon energies of 12.8 and 14.7 MeV.

G Laskaris,A Deltuva,T Averett,Y Zhang,Q Ye,X Qian,J R Tompkins,S Stave,B A Perdue,A C Fonseca,W Zheng,J Golak,H J Karwowski,R Skibiński,P U Sauer,B Lalremruata,H R Weller,L S Myers,Q J Ye,D Dutta,H Witała,M W Ahmed,C Peng,J.m Mueller ,Gao H ,Y Wu ,Min Huang

doi:10.1103/physrevlett.110.202501

First measurements of spin-dependent double-differential cross sections and the Gerasimov-Drell-Hearn Integrand from 3He(γ,n)pp at incident photon energies of 12.8 and 14.7 MeV.

G Laskaris, A Deltuva + Show 25 more

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https://doi.org/10.1103/physrevlett.110.202501

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Journal: Physical Review Letters	Publication Date: May 17, 2013
Citations: 12	License type: publisher-specific, author manuscript

Affiliation: Triangle Universities Nuclear Laboratory, Duke University, University of Lisbon, William & Mary, University of North Carolina at Chapel Hill, Jagiellonian University, Leibniz University Hannover, Mississippi State University

#Triangle Universities Nuclear Laboratory #Three-body Calculations + Show 8 more

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Abstract

The first measurement of the three-body photodisintegration of longitudinally polarized (3)He with a circularly polarized γ-ray beam was carried out at the High Intensity γ-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 (3)He 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.

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