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Measurement of G(Ep)/G(Mp) via polarization transfer at Q(2)=0.4 GeV/c(2)

By T. Pospischil, P. Bartsch, D. Baumann, R. Bohm, K. Bohinc, M. Ding, S. Derber, M.O. Distler, D. Elsner, I. Ewald, J. Friedrich, J.M. Friedrich, S. Grozinger, S. Hedicke, P. Jennewein, J. Jourdan, M. Kahrau, F. Klein, K.W. Krygier, J. Lac, A. Liesenfeld, S. Malov, J. McIntyre, H. Merkel, P. Merle, U. Muller, R. Neuhausen, M. Potokar, R.D. Ransome, D. Rohe, G. Rosner, J. Sanner, H. Schmieden, M. Seimetz, S. Sirca, I. Sick, O. Strahle, A. Sule, A. Wagner, T. Walcher and M. Weis


The polarization transfer from longitudinally polarized electrons to protons in the elastic scattering p((e) over right arrow, e' (p) over right arrow) has been measured around Q(2) = 0.4 (GeV/c)(2) with the three-spectrometer facility at the Mainz microtron MAMI. From this polarization transfer the ratio G(Ep)/(G(Mp)/mu (rho)) has been determined. The ratio is found to be slightly less than unity in agreement with recent results from other laboratories and from the Rosenbluth separation of cross-sections measured with unpolarized electrons

Topics: QC
Year: 2001
OAI identifier: oai:eprints.gla.ac.uk:1742
Provided by: Enlighten
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