scispace - formally typeset
Search or ask a question

Showing papers by "Konstantin Beloborodov published in 2014"

Journal Article•DOI•
Study of the process $e^+e^-\to n\bar{n}$ at the VEPP-2000 $e^+e^-$ collider with the SND detector

[...]

M. N. Achasov, A. Yu. Barnyakov, Konstantin Beloborodov, A. V. Berdyugin, Dmitry Berkaev, Alexander Bogdanchikov, A. A. Botov, T. V. Dimova, V. P. Druzhinin, V. B. Golubev, L. V. Kardapoltsev, A. S. Kasaev, Alexey Kharlamov, A. N. Kirpotin, Ivan Koop, A. A. Korol, S. V. Koshuba, D. P. Kovrizhin, A. S. Kupich, K. A. Martin, A. E. Obrazovsky, E. V. Pakhtusova, Yu. A. Rogovsky, A. I. Senchenko, S. I. Serednyakov, Z. K. Silagadze, Yu. M. Shatunov, Dmitry Shtol, D. B. Shwartz, A.N. Skrinsky, I. K. Surin, Yu. A. Tikhonov, Yu. V. Usov, A. V. Vasiljev 
13 Oct 2014-Physical Review D
TL;DR: In this paper, the process of the VEPP-2000 collider with the SND detector in the energy range from threshold up to 2 GeV has been studied at the collider and the cross section and effective neutron form factor have been measured.
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.

63 citations

Journal Article•DOI•
Study of the process $e^+e^-\to\eta\gamma$ in the center-of-mass energy range 1.07--2.00 GeV

[...]

M. N. Achasov, V. M. Aulchenko, A. Yu. Barnyakov, Konstantin Beloborodov, A. V. Berdyugin, Alexander Bogdanchikov, A. A. Botov, T. V. Dimova, V. P. Druzhinin, V. B. Golubev, K. A. Grevtsov, L. V. Kardapoltsev, Alexey Kharlamov, D. P. Kovrizhin, Ivan Koop, A. A. Korol, S. V. Koshuba, A. P. Lysenko, K. A. Martin, A. E. Obrazovsky, E. V. Pakhtusova, Evgeny Perevedentsev, Alexander Romanov, S. I. Serednyakov, Z. K. Silagadze, A.N. Skrinsky, I. K. Surin, Yu. A. Tikhonov, A. V. Vasiljev, P. Yu. Shatunov, Yu. M. Shatunov, Dmitry Shtol 
01 Aug 2014-Physical Review D
TL;DR: In this article, the authors measured the center-of-mass energy range 1.07-2.00 GeV using the decay mode of the SND detector at the VEPP-2000 collider.
Abstract: The $e^+e^-\to\eta\gamma$ cross section has been measured in the center-of-mass energy range 1.07--2.00 GeV using the decay mode $\eta\to 3\pi^0$, $\pi^0\to \gamma\gamma$. The analysis is based on 36 pb$^{-1}$ of integrated luminosity collected with the SND detector at the VEPP-2000 $e^+e^-$ collider. The measured cross section of about 35 pb at 1.5 GeV is explained by decays of the $\rho(1450)$ and $\phi(1680)$ resonances.

17 citations

Journal Article•DOI•
Particle identification system based on dense aerogel for SND detector at VEPP-2000 collider

[...]

A. Yu. Barnyakov1, M.Yu. Barnyakov2, M.Yu. Barnyakov1, Konstantin Beloborodov3, Konstantin Beloborodov1, Victor Bobrovnikov1, A. R. Buzykaev1, A.F. Danilyuk, V. B. Golubev1, V. B. Golubev3, V.V. Gulevich1, S.A. Kononov3, S.A. Kononov1, E. A. Kravchenko3, E. A. Kravchenko1, A. P. Onuchin1, A. P. Onuchin2, K.A. Martin1, K.A. Martin3, Sergey Serednyakov1, Sergey Serednyakov3, V.M. Vesenev1 •
Budker Institute of Nuclear Physics1, Novosibirsk State Technical University2, Novosibirsk State University3
19 Sep 2014-Journal of Instrumentation
TL;DR: The threshold Cerenkov counter based on dense aerogel with refraction index n =113 was used for π/K separation at SND detector at VEPP-2000 e+e− collider in the particle momentum range up to 1 GeV/c as discussed by the authors.
Abstract: The threshold Cerenkov counter based on dense aerogel with refraction index n =113 is described This counter is used for π/K separation at SND detector at VEPP-2000 e+e− collider in the particle momentum range up to 1 GeV/c The results on separation efficiency for hadrons produced in e+e− annihilation are presented

7 citations

Journal Article•DOI•
Hadronic cross section measurements at snd

[...]

M. N. Achasov1, M. N. Achasov2, V.M. Aulchenko2, V.M. Aulchenko1, A. Yu. Barnyakov1, Konstantin Beloborodov2, Konstantin Beloborodov1, A. V. Berdyugin2, A. V. Berdyugin1, D.E. Berkaev2, D.E. Berkaev1, Alexander Bogdanchikov1, A. A. Botov1, T. V. Dimova1, T. V. Dimova2, V. P. Druzhinin2, V. P. Druzhinin1, V. B. Golubev2, V. B. Golubev1, L. V. Kardapoltsev2, L. V. Kardapoltsev1, A.S. Kasaev1, Alexey Kharlamov2, Alexey Kharlamov1, A. N. Kirpotin1, I. A. Koop2, I. A. Koop1, Aleksandr Korol1, Aleksandr Korol2, S.V. Koshuba1, D. P. Kovrizhin1, E. A. Kravchenko2, E. A. Kravchenko1, A. S. Kupich1, K. A. Martin1, K. A. Martin3, A. E. Obrazovsky1, E. V. Pakhtusova1, Yu. A. Rogovsky1, A. I. Senchenko1, S. I. Serednyakov2, S. I. Serednyakov1, Yu. M. Shatunov1, D. A. Shtol1, D. B. Shwartz1, D. B. Shwartz2, Z. K. Silagadze1, Z. K. Silagadze2, A.N. Skrinsky1, I. K. Surin1, Yu. A. Tikhonov1, Yu. A. Tikhonov2, Yu. V. Usov1, Ilya Zemlyansky1 •
Budker Institute of Nuclear Physics1, Novosibirsk State University2, Novosibirsk State Technical University3
17 Dec 2014
TL;DR: In this article, preliminary results on multihadron processes obtained with the SND detector at the e+e− collider VEPP-2000 in the energy range from 1 to 2 GeV are presented.
Abstract: The preliminary results on multihadron processes obtained with the SND detector at the e+e− collider VEPP-2000 in the energy range from 1 to 2 GeV are presented. The results are interesting in connection with their contribution to the total hadronic cross section, the muon g-2 and a possibility to study excited vector mesons properties. The nucleon anti-nucleon production was also studied.

5 citations

Journal Article•DOI•
Precise measurements of the hadronic cross sections with the CMD-3 and SND detectors at the VEPP-2000 e+ e− collider

[...]

M. N. Achasov1, M. N. Achasov2, R.R. Akhmetshin2, Alexey Anisenkov2, V.M. Aulchenko1, V.M. Aulchenko2, V.S. Banzarov2, L.M. Barkov2, A. Yu. Barnyakov2, N.S. Bashtovoy2, Konstantin Beloborodov1, Konstantin Beloborodov2, A. V. Berdyugin1, A. V. Berdyugin2, D.E. Berkaev2, D.E. Berkaev1, Alexander Bogdanchikov2, A.E. Bondar2, A.E. Bondar1, A. A. Botov2, A.V. Bragin2, A.V. Dimova2, V. P. Druzhinin1, V. P. Druzhinin2, Semen Eidelman1, Semen Eidelman2, D. A. Epifanov3, D. A. Epifanov2, L.B. Epshteyn2, L.B. Epshteyn4, A.L. Erofeev2, G.V. Fedotovich2, G.V. Fedotovich1, S.E. Gayazov1, S.E. Gayazov2, V. B. Golubev1, V. B. Golubev2, A.A. Grebenuk2, A.A. Grebenuk1, K. A. Grevtsov2, K. A. Grevtsov1, D.N. Grigoriev2, D.N. Grigoriev4, D.N. Grigoriev1, E. M. Gromov2, Fedor Ignatov2, L.V. Kardapoltsev2, L.V. Kardapoltsev1, S.V. Karpov2, Vassili Kazanin2, Vassili Kazanin1, Alexey Kharlamov1, Alexey Kharlamov2, B.I. Khazin2, B.I. Khazin1, A. N. Kirpotin2, I. A. Koop2, I. A. Koop1, I. A. Koop4, Aleksandr Korol2, Aleksandr Korol1, S.V. Koshuba2, O.A. Kovalenko1, O.A. Kovalenko2, D.P. Kovrizhin2, D.P. Kovrizhin1, A.N. Kozyrev2, E.A. Kozyrev1, E.A. Kozyrev2, P. Krokovny1, P. Krokovny2, A. S. Kupich2, A.E. Kuzmenko2, A.E. Kuzmenko4, A.S. Kuzmin2, I.B. Logashenko2, I.B. Logashenko1, P. Lukin2, P. Lukin1, A. P. Lysenko2, K. A. Martin4, K. A. Martin2, K.Yu. Mikhailov1, K.Yu. Mikhailov2, A. E. Obrazovsky2, V.S. Okhapkin2, A.V. Otboev2, E.V. Pakhtusova2, E.A. Perevedentsev1, E.A. Perevedentsev2, Yu.N. Pestov2, A.S. Popov1, A.S. Popov2, Yu.S. Popov2, G.P. Razuvaev2, G.P. Razuvaev1, Yu. A. Rogovsky2, A.L. Romanov2, A.A. Ruban2, N.M. Ryskulov2, A.E. Ryzhenenkov1, A.E. Ryzhenenkov2, Sergey Serednyakov1, Sergey Serednyakov2, P. Yu. Shatunov2, Yu. M. Shatunov2, V.E. Shebalin2, D.N. Shemyakin1, D.N. Shemyakin2, D.A. Shtol2, B.A. Shwartz1, B.A. Shwartz2, D. B. Shwartz1, D. B. Shwartz2, A.L. Sibidanov2, A.L. Sibidanov5, Z. K. Silagadze2, Z. K. Silagadze1, E. P. Solodov1, E. P. Solodov2, I. K. Surin2, Alexey Talyshev2, Alexey Talyshev1, V.M. Titov2, A.V. Vasiljev2, A.I. Vorobiov2, Yu.V. Yudin2, I.M. Zemlyansky2, Yu. M. Zharinov2 •
Novosibirsk State University1, Budker Institute of Nuclear Physics2, University of Tokyo3, Novosibirsk State Technical University4, University of Sydney5
01 Apr 2014-Epj Web of Conferences
TL;DR: In this paper, it was shown that the difference in 3.5 sigma between the muon (g − 2) experimental result and its calculation in the Standard Model can be explained.
Abstract: It’s good known the difference in 3.5 sigma between the muon (g – 2) experimental result and its calculation in Standard Model. To clarify this intriguing discrepancy the new stage of muon (g – 2) measurement is under preparation at Fermi National Laboratory. On other hand, regular data taking for measurements of hadron cross section production in e + e − annihilations is under way since December 2010 at the electron-positron collider VEPP-2000 with the CMD-3 and SND detectors. The collected data sample corresponds to about 60 inverse picobarns of integrated luminosity per detector in the energy range from 0.32 up to 2 GeV. Preliminary analysis of various hadronic cross sections has been performed.

3 citations

Journal Article•DOI•
Test results of the threshold aerogel Cherenkov counter system with n = 1.05 using electrons and muons at p < 500 MeV/c

[...]

A.Yu. Barnyakov1, A.Yu. Barnyakov2, M.Yu. Barnyakov1, M.Yu. Barnyakov2, Konstantin Beloborodov1, Konstantin Beloborodov2, Victor Bobrovnikov2, A. R. Buzykaev2, V. B. Golubev1, V. B. Golubev2, S.A. Kononov1, S.A. Kononov2, S.V. Koshuba2, E. A. Kravchenko2, E. A. Kravchenko1, K.A. Martin1, K.A. Martin2, A. P. Onuchin1, A. P. Onuchin2, A. P. Onuchin3, Sergey Serednyakov2, Sergey Serednyakov1, V.M. Vesenev2 •
Novosibirsk State University1, Budker Institute of Nuclear Physics2, Novosibirsk State Technical University3
20 Aug 2014-Journal of Instrumentation
TL;DR: In this article, the threshold aerogel Cherenkov counter system with n = 1.05 intended for particle separation is presented, which is constructed for SND detector which is taking data at VEPP-2000 e+e− collider.
Abstract: Test results of the threshold aerogel Cherenkov counter system with n=1.05 intended for particle separation are presented. The system is constructed for SND detector which is taking data at VEPP-2000 e+e− collider. The measurements have been done using particles from e+e−→e+e− and e+e−→μ+μ− reactions. The average signal from electrons is 3.5 photoelectrons.

1 citations

Journal Article•DOI•
Light Hadron Production in Experiments with the SND Detector at the e+e- Collider VEPP-2000

[...]

M. N. Achasov1, M. N. Achasov2, A.Yu. Barnyakov2, A.Yu. Barnyakov1, M.Yu. Barnyakov1, M.Yu. Barnyakov2, Konstantin Beloborodov2, Konstantin Beloborodov1, A. V. Berdyugin2, A. V. Berdyugin1, D.E. Berkaev2, D.E. Berkaev1, Vladimir Blinov2, Vladimir Blinov3, Vladimir Blinov1, Victor Bobrovnikov2, Victor Bobrovnikov1, Alexander Bogdanchikov1, A. A. Botov1, A. R. Buzykaev1, T.V. Dimova2, T.V. Dimova1, V. P. Druzhinin2, V. P. Druzhinin1, V. B. Golubev2, V. B. Golubev1, L.V. Kardapoltsev2, L.V. Kardapoltsev1, Alexey Kharlamov1, Alexey Kharlamov2, A. N. Kirpotin1, S.A. Kononov2, S.A. Kononov1, I. A. Koop3, I. A. Koop1, I. A. Koop2, Aleksandr Korol1, Aleksandr Korol2, S.V. Koshuba1, D. P. Kovrizhin2, D. P. Kovrizhin1, D.P. Kravchenko2, D.P. Kravchenko1, A.S. Kupich2, A.S. Kupich1, A. P. Lysenko1, K. A. Martin1, A. E. Obrazovsky1, A. P. Onuchin1, A. P. Onuchin3, A. P. Onuchin2, E. V. Pakhtusova1, Sergey Serednyakov2, Sergey Serednyakov1, A.L. Romanov1, A. I. Senchenko1, P. Yu. Shatunov1, Yu. M. Shatunov1, Yu. M. Shatunov2, D. A. Shtol1, D. B. Shwartz1, D. B. Shwartz2, Z. K. Silagadze2, Z. K. Silagadze1, A.N. Skrinsky1, I. K. Surin1, Yu. A. Tikhonov2, Yu. A. Tikhonov1, Yu. V. Usov1, A.V. Vasiljev1, A.V. Vasiljev2, Ilya Zemlyansky1 •
Budker Institute of Nuclear Physics1, Novosibirsk State University2, Novosibirsk State Technical University3
01 Jan 2014-Epj Web of Conferences
TL;DR: In this paper, the cross sections for the processes e + e − → ωπ 0, K + K −,3 π, ηπ + π −, ηγ, p ¯ p, n¯ n have been measured.
Abstract: The experiments have been carried out with the SND detector at the VEPP- 2000 e + e − collider in the energy range from 0.3 to 2.0 GeV. The cross sections for the processes e + e − → ωπ 0 , K + K − ,3 π, ηπ + π − , ηγ, p ¯ p, n¯ n have been measured.
Journal Article•DOI•
Results and Perspectives on Nucleon Form Factors from Snd and CMD-3

[...]

M. N. Achasov1, M. N. Achasov2, R.R. Akhmetshin1, Alexey Anisenkov1, V.M. Aulchenko2, V.M. Aulchenko1, V. S. Banzarov1, L.M. Barkov1, A. Yu. Barnyakov1, N.S. Bashtovoy1, Konstantin Beloborodov1, Konstantin Beloborodov2, A. V. Berdyugin1, A. V. Berdyugin2, D.E. Berkaev2, D.E. Berkaev1, Alexander Bogdanchikov1, A.E. Bondar1, A.E. Bondar2, A. A. Botov1, A.V. Bragin1, T. V. Dimova2, T. V. Dimova1, V. P. Druzhinin1, V. P. Druzhinin2, S.I. Eidelman1, S.I. Eidelman2, D. A. Epifanov1, D. A. Epifanov3, L.B. Epshteyn1, L.B. Epshteyn4, A.L. Erofeev1, G.V. Fedotovich1, G.V. Fedotovich2, S.E. Gayazov2, S.E. Gayazov1, V. B. Golubev1, V. B. Golubev2, A.A. Grebenuk1, A.A. Grebenuk2, K. A. Grevtsov1, K. A. Grevtsov2, D.N. Grigoriev4, D.N. Grigoriev1, D.N. Grigoriev2, E. M. Gromov1, Fedor Ignatov1, L. V. Kardapoltsev2, L. V. Kardapoltsev1, S.V. Karpov1, Vassili Kazanin1, Vassili Kazanin2, Alexey Kharlamov2, Alexey Kharlamov1, B.I. Khazin1, B.I. Khazin2, A. N. Kirpotin1, I. A. Koop1, I. A. Koop2, Aleksandr Korol1, Aleksandr Korol2, S.V. Koshuba1, O.A. Kovalenko2, O.A. Kovalenko1, D.P. Kovrizhin1, A.N. Kozyrev1, E.A. Kozyrev2, E.A. Kozyrev1, P. Krokovny2, P. Krokovny1, A. S. Kupich1, A.E. Kuzmenko1, A.E. Kuzmenko2, A.S. Kuzmin1, I.B. Logashenko2, I.B. Logashenko1, P.A. Lukin1, P.A. Lukin2, A. P. Lysenko1, K. A. Martin1, K. A. Martin4, K.Yu. Mikhailov2, K.Yu. Mikhailov1, A. E. Obrazovsky1, V.S. Okhapkin1, E. V. Pakhtusova1, E.A. Perevedentsev2, E.A. Perevedentsev1, Yu.N. Pestov1, A.S. Popov1, A.S. Popov2, Yu.S. Popov1, G.P. Razuvaev2, G.P. Razuvaev1, Yu. A. Rogovsky1, A.L. Romanov1, A.A. Ruban1, N.M. Ryskulov1, A.E. Ryzhenenkov2, A.E. Ryzhenenkov1, S. I. Serednyakov1, S. I. Serednyakov2, P. Yu. Shatunov1, Yu. M. Shatunov1, V.E. Shebalin1, D.N. Shemyakin2, D.N. Shemyakin1, D. A. Shtol1, B.A. Shwartz2, B.A. Shwartz1, A.L. Sibidanov5, A.L. Sibidanov1, Z. K. Silagadze2, Z. K. Silagadze1, E. P. Solodov2, E. P. Solodov1, I. K. Surin1, Alexey Talyshev1, Alexey Talyshev2, V.M. Titov1, A. V. Vasiljev1, A.I. Vorobiov1, Yu.V. Yudin1, Ilya Zemlyansky1, Yu. M. Zharinov1 •
Budker Institute of Nuclear Physics1, Novosibirsk State University2, University of Tokyo3, Novosibirsk State Technical University4, University of Sydney5
17 Dec 2014
TL;DR: In this paper, preliminary results on the nucleon timelike electromagnetic form factors (FF) and the |GE/GM| ratio are presented, and the preliminary results are compared with the results obtained in the previous year.
Abstract: During years 2011 and 2012 data taking runs have been carried out at VEPP-2000 e+e- collider to measure the production of the nucleon-antinucleon pairs near threshold. In this talk the preliminary results on the nucleon timelike electromagnetic form factors (FF) and the |GE/GM| ratio are presented.