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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2003, Volume 78, Issue 2, Pages 61–66
(Mi jetpl2489)
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QED corrections in radiative return method at measurement of the $e^+e^-\to \pi^+\pi^-$ cross–section below 1 GeV
M. I. Konchatnii, N. P. Merenkov, O. N. Shekhovtsova National Science Centre Kharkov Institute of Physics and Technology
Abstract:
We discuss radiative corrections at the measurement of the $e^+e^-\to \pi^+\pi^-$ cross-section by the radiative return method without photon tagging. The radiative corrections to the initial–state radiation process are computed for DA$\Phi$NE conditions, using the quasi–real electron approximation for both, the cross-section and the underlying kinematics. The efficiency of experimental rules for event selection by the restrictions on the lost invariant mass and so-called «track mass» is estimated. Some numerical calculations illustrate our analytical results.
Received: 23.06.2003
Citation:
M. I. Konchatnii, N. P. Merenkov, O. N. Shekhovtsova, “QED corrections in radiative return method at measurement of the $e^+e^-\to \pi^+\pi^-$ cross–section below 1 GeV”, Pis'ma v Zh. Èksper. Teoret. Fiz., 78:2 (2003), 61–66; JETP Letters, 78:2 (2003), 51–56
Linking options:
https://www.mathnet.ru/eng/jetpl2489 https://www.mathnet.ru/eng/jetpl/v78/i2/p61
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Abstract page: | 121 | Full-text PDF : | 44 | References: | 33 |
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