Pis'ma v Zh. Èksper. Teoret. Fiz., 2006 Volume 84, Issue 8, Pages 491–495
(Mi jetpl1162)
This article is cited in
142 papers
FIELDS, PARTICLES, AND NUCLEI
Measurement of the e + e − → π+ π− cross section with the CMD-2 detector in the 370–520-MeV energy range
V. M. Aul'chenko ab ,
R. R. Akhmetshin a ,
V. Sh. Banzarov a ,
L. M. Barkov ba ,
N. S. Bashtovoi a ,
D. V. Bondarev ba ,
A. E. Bondar a ,
A. V. Bragin a ,
N. I. Gabyshev a ,
D. A. Gorbachev a ,
A. A. Grebenyuk a ,
D. N. Grigor'ev ba ,
S. K. Dhawan c ,
D. A. Epifanov a ,
A. S. Zaitsev a ,
S. G. Zverev a ,
F. V. Ignatov a ,
V. F. Kazanin ba ,
S. V. Karpov a ,
I. A. Koop ba ,
P. P. Krokovny ba ,
A. S. Kuz'min ba ,
I. B. Logashenko d ,
P. A. Lukin ba ,
A. P. Lysenko a ,
A. I. Mil'shtein ba ,
K. Yu. Mikhailov a ,
I. N. Nesterenko ba ,
M. A. Nikulin a ,
A. V. Otboev a ,
V. S. Okhapkin a ,
E. A. Perevedentsev ba ,
A. S. Popov a ,
S. I. Redin a ,
B. L. Roberts d ,
N. I. Root a ,
A. A. Ruban a ,
N. M. Ryskulov a ,
A. L. Sibidanov a ,
V. A. Sidorov a ,
A. N. Skrinsky a ,
V. P. Smakhtin e ,
I. G. Snopkov a ,
E. P. Solodov ba ,
J. A. Thompson f ,
G. V. Fedotovich ba ,
B. I. Khazin ba ,
V. W. Hughes c ,
A. G. Shamov a ,
Yu. M. Shatunov a ,
B. A. Shvarts ba ,
S. I. Eidel'man ba ,
Yu. V. Yudin a a G I. Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences
b Novosibirsk State University
c Yale University
d Boston University
e Weizmann Institute of Science
f University of Pittsburgh
Abstract:
The results of the experiment on the measurement of the
e + e − → π
+ π
− cross section in a cm energy range of 370–520 MeV are presented. The systematic measurement error is equal to 0.7%. In the vector dominance model, the pion electromagnetic radius is calculated using all the CMD-2 data on the pion form factor. The cross section for the production of a muon pair is measured in the energy range of the experiment.
PACS:
13.25.-k ,
13.40.Gp ,
13.66.-a ,
29.30.-h Received: 18.09.2006
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