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Measurements of the magnetic form factor of the proton in the timelike region at large momentum transfer - art. no. 032002

Authors

Ambrogiani, M Bagnasco, S Baldini, W Bettoni, D Borreani, G Buzzo, A Calabrese, R Cester, R Dalpiaz, P Fan, X Garzoglio, G Gollwitzer, KE Hahn, A Jin, S Kasper, J Lasio, G Lo Vetere, M Luppi, E Maas, P Macri, M Mandelkern, M Marchetto, F Marinelli, M Marsh, W Martini, A Menichetti, E Mussa, R Obertino, MM Pallavicini, A Pastrone, N Patrignani, C Pedlar, TK Peoples, J Pordes, S Robutti, E Rosen, J Rumerio, P Santroni, A Savrie, M Schultz, J Seth, KK Stancari, G Stancari, M Streets, J Tomaradze, A Werkema, S Zioulas, G

Citation

M. Ambrogiani et al., Measurements of the magnetic form factor of the proton in the timelike region at large momentum transfer - art. no. 032002, PHYS REV D, 6003(3), 1999, pp. 2002

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW D

ISSN journal

05562821 → ACNP

Volume

6003

Issue

Year of publication

1999

Database

ISI

SICI code

0556-2821(19990801)6003:3<2002:MOTMFF>2.0.ZU;2-1

Abstract

The cross section for the reaction (p) over bar p --> e (+) e (-) has been measured at s = 8.8, 10.8, 12.4, 13.1, and 14.4 GeV2 by Fermilab experiment E835. A non-magnetic spectrometer is used to identify the e (+) e (-) fina l states generated by the antiproton beam intersecting an internal hydrogen gas jet target. From the analysis of the 144 observed events, new high-pre cision measurements of the proton magnetic form factor for timelike momentu m transfers are obtained, [80556-2821(99)03013-1].