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

Authors
Pospischil, T Bartsch, P Baumann, D Bohm, R Bohinc, K Ding, M Derber, S Distler, MO Elsner, D Ewald, I Friedrich, J Friedrich, JM Grozinger, S Hedicke, S Jennewein, P Jourdan, J Kahrau, M Klein, F Krygier, KW Lac, J Liesenfeld, A Malov, S McIntyre, J Merkel, H Merle, P Muller, U Neuhausen, R Potokar, M Ransome, RD Rohe, D Rosner, G Sanner, J Schmieden, H Seimetz, M Sirca, S Sick, I Strahle, O Sule, A Wagner, A Walcher, T Weis, M
Citation
T. Pospischil et al., Measurement of G(Ep)/G(Mp) via polarization transfer at Q(2)=0.4 GeV/c(2), EUR PHY J A, 12(1), 2001, pp. 125-127
Citations number
20
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
12
Issue
1
Year of publication
2001
Pages
125 - 127
Database
ISI
SICI code
1434-6001(200109)12:1<125:MOGVPT>2.0.ZU;2-N
Abstract
The polarization transfer from longitudinally polarized electrons to proton s 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-spectromete r 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 labor atories and from the Rosenbluth separation of cross-sections measured with unpolarized electrons.