Effects of Non-nucleonic Degrees of Freedom in the D(p-->, gamma )3He and p(d-->, gamma )3He Reactions
Journal Article
·
· Physical Review Letters
OSTI ID:954446
Measurements of the D(p-->, gamma )3He and p(d-->, gamma )3He reactions below Ep,d = 80 keV are compared to the results of calculations based oncorrelated hyperspherical harmonic wave functions obtained from realistic interactions with full inclusion of Coulomb distortion in the initial continuum state, and anuclear current operator with one- and two-body components. Dramatic effects due to the tensor force and the associated two-body (meson-exchange) interactioncurrents are observed in the vector and, to some extent, tensor analyzing powers for the first time. The extrapolation to zero energy leads to an S-factor value of S(E= 0) = 0.165z0.014 eV b, in reasonable agreement with theory.
- Research Organization:
- Thomas Jefferson Lab National Accelerator Facility
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 954446
- Report Number(s):
- CEBAF-TH-95-19
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Vol. 76; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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