Differential cross section for the H-2 (gamma, p) n reaction between 100 and 255 MeV
- E. De Sanctis(,)
- Frascati and
- INFM, Genoa and
- INFN, Genoa
- M. Anghinolfi(,)
- Frascati and
- INFM, Genoa and
- INFN, Genoa
- ,
- P. Corvisiero(,)
- Frascati and
- INFM, Genoa and
- INFN, Genoa
- P. Di Giacomo()
- Frascati and
- INFM, Genoa and
- INFN, Genoa
8 pages
Published in:
- Phys.Rev.C 34 (1986) 413-421
Citations per year
Abstract: (APS)
Differential cross sections for the H2(γ,p)n reaction were measured at five laboratory angles from 32.5° to 130°, for photon energies between 100 and 255 MeV, in 10 MeV steps. A quasi-monochromatic photon beam, obtained by positron in-flight annihilation on a liquid hydrogen radiator, was used, and the photon spectrum was measured on-line by a pair spectrometer. The normalization uncertainty is within ±5%. Data agree, within the total errors, with recent results of a tagged-photon experiment and of a measurement of the inverse process. The measured angular distributions were fitted by a sum of Legendre polynomials, and the results compared with recent calculations. Significant departures from the calculated angular distribution asymmetry have been found.- 25.10.+s
- 25.20.Lj
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