Spin-dependent cross sections from the three-body photodisintegration of He 3 at incident energies of 12.8 and 14.7 MeV
- Laskaris, G.
- Ye, Q.
- Lalremruata, B.
- Ye, Q.J.
- Ahmed, M.W.
- Averett, T.
- Deltuva, A.
- Dutta, D.
- Fonseca, A.C.
- Gao, H.
- Golak, J.
- Huang, M.
- Karwowski, H.J.
- Mueller, J.M.
- Myers, L.S.
- Peng, C.
- Perdue, B.A.
- Qian, X.
- Sauer, P.U.
- Skibinski, R.
- Stave, S.
- Tompkins, J.R.
- Weller, H.R.
- Witala, H.
- Wu, Y.K.
- Zhang, Y.
- Zheng, W.
DOIAbstract
The first measurement of the three-body photodisintegration of polarized 3He using a circularly polarized photon beam has been performed at incident energies of 12.8 and 14.7 MeV. This measurement was carried out at the high-intensity γ-ray source located at Triangle Universities Nuclear Laboratory. A high-pressure 3He target, polarized via spin exchange optical pumping with alkali metals, was used in the experiment. The spin-dependent double- and single-differential cross sections from 3He(γ,n)pp for laboratory angles varying from 30° to 165° are presented and compared with state-of-the-art three-body calculations. The data reveal the importance of including the Coulomb interaction between protons in the three-body calculations
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