title: 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.
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.
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: G
authors.initials: G
authors.lastname: Laskaris
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: Q
authors.initials: Q
authors.lastname: Ye
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: B
authors.initials: B
authors.lastname: Lalremruata
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: Q J
authors.initials: QJ
authors.lastname: Ye
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA and Department of Mathematics and Physics, North Carolina Central University, Durham, North Carolina 27707, USA.
authors.forename: M W
authors.initials: MW
authors.lastname: Ahmed
authors.affiliation: College of William and Mary, Williamsburg, Virginia 23187, USA.
authors.forename: T
authors.initials: T
authors.lastname: Averett
authors.affiliation: Centro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, Portugal.
authors.forename: A
authors.initials: A
authors.lastname: Deltuva
authors.affiliation: Mississippi State University, Mississippi State, Mississippi 39762, USA.
authors.forename: D
authors.initials: D
authors.lastname: Dutta
authors.affiliation: Centro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, Portugal.
authors.forename: A C
authors.initials: AC
authors.lastname: Fonseca
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: H
authors.initials: H
authors.lastname: Gao
authors.affiliation: M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Golak
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: M
authors.initials: M
authors.lastname: Huang
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
authors.forename: H J
authors.initials: HJ
authors.lastname: Karwowski
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Mueller
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: L S
authors.initials: LS
authors.lastname: Myers
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: C
authors.initials: C
authors.lastname: Peng
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: B A
authors.initials: BA
authors.lastname: Perdue
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: X
authors.initials: X
authors.lastname: Qian
authors.affiliation: Institut für Theoretische Physik, Leibniz Universität Hannover, D-30167 Hannover, Germany.
authors.forename: P U
authors.initials: PU
authors.lastname: Sauer
authors.affiliation: M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland.
authors.forename: R
authors.initials: R
authors.lastname: Skibiński
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: S
authors.initials: S
authors.lastname: Stave
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Tompkins
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: H R
authors.initials: HR
authors.lastname: Weller
authors.affiliation: M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland.
authors.forename: H
authors.initials: H
authors.lastname: Witała
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: Y K
authors.initials: YK
authors.lastname: Wu
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA and Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors.forename: W
authors.initials: W
authors.lastname: Zheng