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Your search keyword '"A. N. Kirpotin"' showing total 4 results
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4 results on '"A. N. Kirpotin"'

1. Measurement of the e+e−→KSKLπ0 cross section in the energy range s=1.3–2.0 GeV

Author

K. A. Martin, A. S. Kupich, A. V. Otboev, A. I. Senchenko, L. V. Kardapoltsev, V. M. Aulchenko, D. B. Shwartz, A. E. Obrazovsky, M. N. Achasov, A. S. Kasaev, Yu. V. Usov, I. K. Surin, N. A. Melnikova, V. B. Golubev, Alexey Kharlamov, Dmitry Berkaev, Yu. M. Shatunov, Alexander Bogdanchikov, K. V. Pugachev, T. V. Dimova, Konstantin Beloborodov, Ivan Koop, Dmitry Shtol, S. I. Serednyakov, A. N. Kirpotin, A. A. Botov, Yu. A. Rogovsky, A. Yu. Barnyakov, E. V. Pakhtusova, A. V. Vasiljev, Z. K. Silagadze, V. P. Druzhinin, D. P. Kovrizhin, L. A. Korneev, A. V. Berdyugin, S. V. Koshuba, and A. A. Korol

Subjects
Physics, Cross section (physics), Particle physics, Range (particle radiation), 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences, Energy (signal processing), Luminosity
Abstract

The ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}$ cross section is measured in the center-of-mass energy range 1.05--2.00 GeV at the SND detector. The measurement is based on data with an integrated luminosity of $35\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ collected at the VEPP-2000 ${e}^{+}{e}^{\ensuremath{-}}$-collider. The obtained results are consistent with the previous most accurate data obtained in the BABAR experiment and have a comparable accuracy.

Published
2018
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2. Updated measurement of the e+e−→ωπ0→π0π0γ cross section with the SND detector

Author

A. A. Botov, V. P. Druzhinin, L. V. Kardapoltsev, Dmitry Berkaev, M. N. Achasov, E. V. Pakhtusova, A. N. Kirpotin, V. B. Golubev, Yu. M. Shatunov, A.N. Skrinsky, A. V. Berdyugin, Yu. A. Rogovsky, Ivan Koop, I. K. Surin, A. A. Korol, S. I. Serednyakov, A. S. Kasaev, A. Yu. Barnyakov, T. V. Dimova, Dmitry Shtol, A. V. Vasiljev, A. I. Senchenko, D. B. Shwartz, A. E. Obrazovsky, S. V. Koshuba, Konstantin Beloborodov, Alexander Bogdanchikov, Alexey Kharlamov, Z. K. Silagadze, D. P. Kovrizhin, and K. A. Martin

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Vector meson dominance, 01 natural sciences, Omega, law.invention, Nuclear physics, Cross section (physics), law, 0103 physical sciences, Radiative transfer, High Energy Physics::Experiment, Vector meson, 010306 general physics, Collider, Energy (signal processing)
Abstract

We analyze a 37 pb$^{-1}$ data sample collected with the SND detector at the VEPP-2000 $e^+e^-$ collider in the center-of-mass energy range 1.05--2.00 GeV and present an updated measurement of the $e^+e^- \to \omega \pi^0 \to \pi^0\pi^0\gamma$ cross section. In particular, we correct the mistake in radiative correction calculation made in our previous measurement based on a part of the data. The measured cross section is fitted with the vector meson dominance model with three $\rho$-like states and used to test the conserved vector current hypothesis in the $\tau^-\to\omega\pi^-\nu_{\tau}$ decay.

Published
2016
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3. Search for theη′→e+e−decay with the SND detector

Author

V. B. Golubev, Yu. M. Shatunov, Dmitry Berkaev, A. Yu. Barnyakov, A. V. Vasiljev, A. A. Korol, A. N. Kirpotin, N. Yu. Muchnoi, Alexey Kharlamov, Ivan Koop, D. P. Kovrizhin, S. V. Koshuba, L. V. Kardapoltsev, D. B. Shwartz, M. N. Achasov, A. S. Kasaev, Yu. A. Tikhonov, S. I. Serednyakov, T. V. Dimova, Konstantin Beloborodov, Ilya Zemlyansky, A. E. Obrazovsky, Dmitry Shtol, Yu. V. Usov, A. V. Berdyugin, A. I. Senchenko, E. V. Pakhtusova, Z. K. Silagadze, K. A. Martin, A. S. Kupich, A. V. Otboev, V. P. Druzhinin, A. A. Botov, I. K. Surin, Alexander Bogdanchikov, V. M. Aulchenko, and P. Yu. Shatunov

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Meson, law, High Energy Physics::Experiment, Nuclear Experiment, Collider, Energy (signal processing), Luminosity, law.invention
Abstract

A search for the process $e^+e^- \to \eta^\prime$ has been performed with the SND detector at the VEPP-2000 $e^+e^-$ collider. The data were accumulated at the center-of-mass energy of $957.78\pm 0.06$ MeV with an integrated luminosity of about 2.9 pb$^{-1}$. For reconstruction of the $\eta^\prime$ meson five decay chains have been used: $\eta^{\prime}\to\eta\pi^+\pi^-$ followed by the $\eta$ decays to $\gamma\gamma$ and $3\pi^0 $, and $\eta^{\prime} \to \eta\pi^0\pi^0$ followed by the $\eta$ decays to $\pi^+\pi^-\pi^0$, $\gamma\gamma$, and $3\pi^0$. As a result, the upper limit has been set on the $\eta^\prime$ electronic width: $\Gamma_{\eta^{\prime}\to e^+e^-} < 0.0020$ eV at the 90\% confidence level.

Published
2015
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4. Study of the processe+e−→nn¯at the VEPP-2000e+e−collider with the SND detector

Author

Alexander Bogdanchikov, V. P. Druzhinin, A. N. Kirpotin, Konstantin Beloborodov, Yu. A. Rogovsky, V. B. Golubev, Yu. M. Shatunov, K. A. Martin, Alexey Kharlamov, A. S. Kupich, Dmitry Shtol, A. A. Botov, D. B. Shwartz, Ivan Koop, S. I. Serednyakov, A. E. Obrazovsky, Dmitry Berkaev, L. V. Kardapoltsev, E. V. Pakhtusova, M. N. Achasov, A. I. Senchenko, A. S. Kasaev, I. K. Surin, A. Yu. Barnyakov, T. V. Dimova, A. V. Vasiljev, A.N. Skrinsky, A. V. Berdyugin, Z. K. Silagadze, D. P. Kovrizhin, A. A. Korol, Yu. A. Tikhonov, S. V. Koshuba, and Yu. V. Usov

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Form factor (quantum field theory), law.invention, Nuclear physics, law, High Energy Physics::Experiment, Neutron, Collider, VEPP-2000, Energy (signal processing), Bar (unit)
Abstract

The process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}n\overline{n}$ has been studied at the VEPP-2000 ${e}^{+}{e}^{\ensuremath{-}}$ collider with the SND detector in the energy range from threshold up to 2 GeV. As a result of the experiment, the ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}n\overline{n}$ cross section and effective neutron form factor have been measured.

Published
2014
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