Measrurement of Helicity-Dependent Photoabsorption Cross Sections on the Neutron from 815 MeV to 1825 MeV
Academic Article
Publication Date:
2005
abstract:
Helicity-dependent total photoabsorption cross sections on the deuteron have been measured for the first time at ELSA (Bonn) in the photon energy range from 815 to 1825 MeV. Circularly polarized tagged photons impinging on a longitudinally polarized LiD target have been used together with a highly efficient
4 detector system. The data around 1 GeV are not compatible with predictions from existing multipole analyses. From the measured energy range an experimental contribution to the GDH integral on the neutron of [33.9 +- 5.5stat 4.5syst] micro barn is extracted.
Iris type:
1.1 Articolo in rivista
Keywords:
GDH; Sume rule; helicity; cross section
List of contributors:
H., Dutz; K., Helbing; J., Krimmer; T., Speckner; G., Zeitler; J., Ahrens; Altieri, Saverio; J. R. M., Annand; G., Anton; H. J., Arends; R., Beck; A., Bock; C., Bradtke; A., Braghieri; W. v., Drachenfels; F., Frommberger; M., Godo; S., Goertz; P., Grabmayr; S., Hasegawa; K., Hansen; J., Harmsen; E., Heid; W., Hillert; H., Holvoet; N., Horikawa; T., Iwata; L., Van Hoorebeke; N., D’Hose; P., Jennewein; B., Kiel; F., Klein; R., Kondratiev; M., Lang; B., Lannoy; R., Leukel; V., Lisin; D., Menze; W., Meyer; T., Michel; J., Naumann; Panzeri, Alessandra; P., Pedroni; Pinelli, Tazio; I., Preobrajenski; E., Radtke; G., Reicherz; C., Rohlof; T., Rostomyan; M., Sauer; B., Schoch; M., Schumacher; G., Tamas; A., Thomas; R., van de Vyver; W., Weihofen; F., Zapadtka
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