Measurement of the pion form factor in the range 1.04–1.38 GeV with the CMD-2 detector

Autor: V. M. Aul’chenko, R. R. Akhmetshin, V. Sh. Banzarov, L. M. Barkov, N. S. Bashtovoi, D. V. Bondarev, A. E. Bondar’, A. V. Bragin, A. A. Valishev, N. I. Gabyshev, D. A. Gorbachev, A. A. Grebenyuk, D. N. Grigor’ev, S. K. Dhawan, D. A. Epifanov, A. S. Zaitsev, S. G. Zverev, F. V. Ignatov, V. F. Kazanin, S. V. Karpov, I. A. Koop, P. P. Krokovny, A. S. Kuz’min, I. B. Logashenko, P. A. Lukin, A. P. Lysenko, A. I. Mil’shtein, K. Yu. Mikhailov, I. N. Nesterenko, M. A. Nikulin, A. V. Otboev, V. S. Okhapkin, E. A. Perevedentsev, A. A. Polunin, A. S. Popov, S. I. Redin, B. L. Roberts, N. I. Root, A. A. Ruban, N. M. Ryskulov, A. L. Sibidanov, V. A. Sidorov, A. N. Skrinsky, V. P. Smakhtin, I. G. Snopkov, E. P. Solodov, J. A. Thompson, G. V. Fedotovich, B. I. Khazin, V. W. Hughes, A. G. Shamov, Yu. M. Shatunov, B. A. Shwartz, S. I. Éidel’man, Yu. V. Yudin
Rok vydání: 2005
Předmět:
Zdroj: Journal of Experimental and Theoretical Physics Letters. 82:743-747
ISSN: 1090-6487
0021-3640
Popis: The cross section for the process $e^+e^-\to\pi^+\pi^-$ is measured in the c.m. energy range 1.04-1.38 GeV from 995 000 selected collinear events including 860000 $e^+e^-$ events, 82000 $\mu^+\mu^-$ events, and 33000 $\pi^+\pi^-$ events. The systematic and statistical errors of measuring the pion form factor are equal to 1.2-4.2 and 5-13%, respectively.
Comment: 5 pages, 2 figures
Databáze: OpenAIRE