ITA
ENG

G(Ep)/G(Mp) ratio by polarization transfer in (e)over-right-arrowp -> e(p)over-right-arrow

Authors

Jones, MK Aniol, KA Baker, FT Berthot, J Bertin, PY Bertozzi, W Besson, A Bimbot, L Boeglin, WU Brash, EJ Brown, D Calarco, JR Cardman, LS Chang, CC Chen, JP Chudakov, E Churchwell, S Cisbani, E Dale, DS De Leo, R Deur, A Diederich, B Domingo, JJ Epstein, MB Ewell, LA Fissum, KG Fleck, A Fonvieille, H Frullani, S Gao, J Garibaldi, F Gasparian, A Gerstner, G Gilad, S Gilman, R Glamazdin, A Glashausser, C Gomez, J Gorbenko, V Green, A Hansen, JO Howell, CR Huber, GM Iodice, M de Jager, CW Jaminion, S Jiang, X Kahl, W Kelly, JJ Khayat, M Kramer, LH Kumbartzki, G Kuss, M Lakuriki, E Lavessiere, G LeRose, JJ Liang, M Lindgren, RA Liyanage, N Lolos, GJ Macri, R Madey, R Malov, S Margaziotis, DJ Markowitz, P McCormick, K McIntyre, JI van der Meer, RLJ Michaels, R Milbrath, BD Mougey, JY Nanda, SK Offermann, EAJM Papandreou, Z Perdrisat, CF Petratos, GG Piskunov, NM Pomatsalyuk, RI Prout, DL Punjabi, V Quemener, G Ransome, RD Raue, BA Roblin, Y Roche, R Rutledge, G Rutt, PM Saha, A Saito, T Sarty, AJ Smith, TP Sorokin, P Strauch, S Suleiman, R Takahashi, K Templon, JA Todor, L Ulmer, PE Urciuoli, GM Vernin, P Vlahovic, B Voskanyan, H Wijesooriya, K Wojtsekhowski, BB Woo, RJ Xiong, F Zainea, GD Zhou, ZL

Citation

Mk. Jones et al., G(Ep)/G(Mp) ratio by polarization transfer in (e)over-right-arrowp -> e(p)over-right-arrow, PHYS REV L, 84(7), 2000, pp. 1398-1402

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW LETTERS

ISSN journal

00319007 → ACNP

Volume

Issue

Year of publication

2000

Pages

1398 - 1402

Database

ISI

SICI code

0031-9007(20000214)84:7<1398:GRBPTI>2.0.ZU;2-U

Abstract

The ratio of the proton's elastic electromagnetic form factors, G(Ep)/G(Mp) , was obtained by measuring P-t and P-l, the transverse and the longitudina l recoil proton polarization, respectively For elastic (e) over right arrow p --> e (p) over right arrow, G(Ep)/G(Mp) is proportional to P-t/P-l. Simu ltaneous measurement of P-t and P-l in a polarimeter provides good control of the systematic uncertainty. The results for the ratio G(Ep)/G(Mp) show a systematic decrease as Q(2) increases from 0.5 to 3.5 GeV2, indicating for the first time a definite difference in the spatial distribution of charge and magnetization currents in the proton.