The EM form factor of the pion has been studied in the time-like region by measuring σ(e+e− → π+π−) normalized to σ(e+e− → μ+μ−). Results have been obtained for q2 down to the physical threshold.
Measurement of the pion form factor in the time-like region for q**2 values between .1-GeV/c**2 and .18-GeV/c**2 / S.R. Amendolia, B. Badelek, G. Batignani, G.A. Beck, E.H. Bellamy, E. Bertolucci, D. Bettoni, H. Bilokon, A. Bizzeti, G. Bologna L. Bosisio, C. Bradaschia, M. Budinich, M. Dell'Orso, B. D'Ettorre-Piazzoli, M. Enorini, F.L. Fabbri, F. Fidecaro, L. Foa, E. Focardi, S.G. Frank, P. Giannetti, A. Giazotto, M.A. Giorgi, J. Harvey, G.P. Heath, M.P.J. Landon, P. Laurelli, F. Liello, G. Mannocchi, P.V. March, P.S. Marrocchesi, D. Menasce, A. Menzione, E. Meroni, E. Milotti, L. Moroni, P. Picchi, F. Ragusa, L. Ristori, L. Rolandi, C. Saltmarsh, A. Saoucha, L. Satta, A. Scribano, A. Stefanini, J.A. Strong, R. Tenchini, G. Tonelli, G. Triggiani, A. Zallo. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 138:5/6(1984), pp. 454-458.
Measurement of the pion form factor in the time-like region for q**2 values between .1-GeV/c**2 and .18-GeV/c**2
E. Meroni;F. Ragusa;
1984
Abstract
The EM form factor of the pion has been studied in the time-like region by measuring σ(e+e− → π+π−) normalized to σ(e+e− → μ+μ−). Results have been obtained for q2 down to the physical threshold.
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