High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector

2 Collaboration; R. R. Akhmetshin; V. M. Aulchenko; V. Sh. Banzarov; L. M. Barkov; N. S. Bashtovoy; A. E. Bondar; D. V. Bondarev; A. V. Bragin; S. K. Dhawan; S. I. Eidelman; D. A. Epifanov; G. V. Fedotovich; N. I. Gabyshev; D. A. Gorbachev; A. A. Grebenuk; D. N. Grigoriev; V. W. Hughes; F. V. Ignatov; S. V. Karpov; V. F. Kazanin; B. I. Khazin; I. A. Koop; P. P. Krokovny; A. S. Kuzmin; I. B. Logashenko; P. A. Lukin; A. P. Lysenko; K. Yu. Mikhailov; J. P. Miller; A. I. Milshtein; I. N. Nesterenko; M. A. Nikulin; V. S. Okhapkin; A. V. Otboev; E. A. Perevedentsev; A. S. Popov; S. I. Redin; B. L. Roberts; N. I. Root; A. A. Ruban; N. M. Ryskulov; A. G. Shamov; Yu. M. Shatunov; B. A. Shwartz; A. L. Sibidanov; V. A. Sidorov; A. N. Skrinsky; V. P. Smakhtin; I. G. Snopkov; E. P. Solodov; J. A. Thompson; Yu. V. Yudin; A. S. Zaitsev; S. G. Zverev

doi:10.1016/j.physletb.2007.01.073

paper

High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector

arXiv:hep-ex/0610021 · doi:10.1016/j.physletb.2007.01.073

Abstract

We present a measurement of the pion form factor based on e+e- annihilation data from the CMD-2 detector in the energy range 0.6<sqrt(s)<1.0 GeV with a systematic uncertainty of 0.8%. A data sample is five times larger than that used in our previous measurement.

18 pages, 10 figures. Added comparison with KLOE measurement, minor updates. Accepted by PLB