1. Experimental determination of the proton electromagnetic form factor at Q2=12.4(GeV/c)2
- Author
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Armstrong, T., Bettoni, D., Bharadwaj, V., Biino, C., Borreani, G., Broemmelsiek, D., Buzzo, A., Calabrese, R., Ceccucci, A., Cester, R., Church, M., Dalpiaz, P., FERRETTI DALPIAZ, P., Fabbri, M., Fast, J. E., Ferroni, S., Ginsburg, C. M., Gollwitzer, K. E., Hahn, A. A., Hasan, M. A., Hsueh, S. Y., Lewis, R., Luppi, E., Macri\', M., Majewska, A., Mandelkern, M., Marchetto, F., Marinelli, M., Marques, J., Marsch, W., Martini, M., Masuzawa, M., Menichetti, E., Migliori, A., Mussa, R., Palestini, S., Pastrone, N., Patrignani, C., Peoples, J., J. R., Pesando, L., Petrucci, Ferruccio Carlo, Pia, M. G., Pordes, S., Rapidis, P., Ray, R., Reid, J., Rinaudo, G., Rosen, J. L., Santroni, A., Sarmiento, M., Savrie\', M., Schultz, J., Seth, K. K., Smith, G. A., Tecchio, L., Tommasini, F., Trokenheim, S., Weber, M. F., Werkema, S., Zhao, J. L., and Zito, M.
- Subjects
Physics ,Nuclear physics ,Particle physics ,Annihilation ,Proton ,Antiproton ,Form factor (quantum field theory) ,Ambientale ,Fermilab - Abstract
The value of the proton form factor in the time‐like region has been determined at Q2=12.4(GeV/c)2. We have selected events pp→e+e− from the data collected in an experiment performed at the Antiproton Accumulator Ring at Fermilab and, assuming the validity of the ‖GE‖≊0 hypotesis, we have found ‖GM‖=.034±.017 and σTOT(pp→e+e−)=10±5pb.
- Published
- 1992
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