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  1. AU="Zhilich V.N."
  2. AU="George, Darren"
  3. AU=Lin Xiukun
  4. AU="Kanwal Gujral"
  5. AU="Christian Young"
  6. AU=Takeuchi Kaoru
  7. AU="Wiślicki, W."
  8. AU="Veiga, Susana"
  9. AU="Reynolds, Matthew W."
  10. AU="Oates, Stephen B"
  11. AU=Okubo K
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  1. Artikel ; Online: Measurement of the two-photon exchange contribution to the elastic e(±)p scattering cross sections at the VEPP-3 storage ring.

    Rachek, I A / Arrington, J / Dmitriev, V F / Gauzshtein, V V / Gerasimov, R E / Gramolin, A V / Holt, R J / Kaminskiy, V V / Lazarenko, B A / Mishnev, S I / Muchnoi, N Yu / Neufeld, V V / Nikolenko, D M / Sadykov, R Sh / Shestakov, Yu V / Stibunov, V N / Toporkov, D K / de Vries, H / Zevakov, S A /
    Zhilich, V N

    Physical review letters

    2015  Band 114, Heft 6, Seite(n) 62005

    Abstract: The ratio of the elastic e(+)p to e(-)p scattering cross sections has been measured precisely, allowing the determination of the two-photon exchange contribution to these processes. This neglected contribution is believed to be the cause of the ... ...

    Abstract The ratio of the elastic e(+)p to e(-)p scattering cross sections has been measured precisely, allowing the determination of the two-photon exchange contribution to these processes. This neglected contribution is believed to be the cause of the discrepancy between the Rosenbluth and polarization transfer methods of measuring the proton electromagnetic form factors. The experiment was performed at the VEPP-3 storage ring at beam energies of 1.6 and 1.0 GeV and at lepton scattering angles between 15° and 105°. The data obtained show evidence of a significant two-photon exchange effect. The results are compared with several theoretical predictions.
    Sprache Englisch
    Erscheinungsdatum 2015-02-13
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.114.062005
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Two-photon exchange contribution in elastic electron-proton scattering, experiment at the VEPP-3 storage ring

    Nikolenko D.M. / Arrington J. / Barkov L.M. / Dmitriev V.F. / Gauzshtein V.V. / Golovin R.A. / Gramolin A.V. / Holt R.J. / Kaminsky V.V. / Lazarenko B.A. / Mishnev S.I. / Muchnoi N.Yu. / Neufeld V.V. / Rachek I.A. / Sadykov R.Sh. / Shestakov Yu.V. / Stibunov V.N. / Toporkov D.K. / de Vries H. /
    Zevakov S.A. / Zhilich V.N.

    EPJ Web of Conferences, Vol 66, p

    2014  Band 06002

    Abstract: We describe a precise measurement of the ratio of the (e+ p) to (e− p) elastic scattering cross sections. This comparison is sensitive to the effect of two-photon exchange contributions which may be the cause for inconsistent extractions of the proton ... ...

    Abstract We describe a precise measurement of the ratio of the (e+ p) to (e− p) elastic scattering cross sections. This comparison is sensitive to the effect of two-photon exchange contributions which may be the cause for inconsistent extractions of the proton form factors obtained using different methods. The experiment was performed at storage ring VEPP–3, Novosibirsk at energies of positron/electron beams of 1.0 and 1.6 GeV with electron/positron scattering angles θ = 65÷105° for the first case and 15÷25° and 55÷75° for the second case. Details of the experiment and the preliminary results are presented.
    Schlagwörter Physics ; QC1-999 ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2014-03-01T00:00:00Z
    Verlag EDP Sciences
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

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  3. Artikel ; Online: Recent Results from the KEDR Detector

    Sinyatkin S.V. / Shwartz B.A. / Simonov E.A. / Shatilov D.N. / Shamov A.G. / Savinov G.A. / Sandyrev V.K. / Ruban A.A. / Prisekin V.G. / Poluektov A.O. / Petrov V.V. / Pivovarov S.G. / Piminov P.A. / Peleganchuk S.V. / Orlov I.O. / Osipov A.A. / Oreshkin S.B. / Onuchin A. P. / Nikolaev I.B. /
    Okunev I.N. / Nikitin S.A. / Neufeld V.V. / Muchnoi N.Yu. / Morozov I. I. / Mishnev S. I. / Meshkov O. I. / Medvedko A. S. / Maslennikov A. L. / Maksimov D.A. / Malyshev V.M. / Levichev E. B. / Kuper E.A. / Kulikov V. F. / Kurkin G.Ya. / Kudryavtsev V.N. / Kravchenko E.A. / Kotov K.Yu. / Kononov S.A. / Kolmogorov V.V. / Kiselev V.A. / Kharlamova T.A. / Karpov S.V. / Karpov G.V. / Karnaev S. E. / Gusev D.V. / Gulevich V.V. / Glukhovchenko Yu.M. / Eidelman S. I. / Grigoriev D.N. / Buzykaev A.R. / Bogomyagkov A.V. / Bondar A. E. / Bobrovnikov V. S. / Bobrov A.V. / Blinov V. E. / Blinov A. E. / Beloborodova O. L. / Basok I.Yu. / Baru S. E. / Barnyakov M.Yu. / Barnyakov A.Yu. / Barladyan A.K. / Aulchenko V.M. / Baldin E.M. / Anashin V.V. / Skrinsky A.N. / Smaluk V.V. / Sokolov A.V. / Sukharev A.M. / Starostina E.V. / Talyshev A.A. / Tayursky V.A. / Telnov V. I. / Tikhonov Yu.A. / Todyshev K.Yu. / Tumaikin G.M. / Usov Yu.V. / Vorobiov A. I. / Yushkov A.N. / Zhilich V.N. / Zhulanov V.V. / Zhuravlev A.N.

    EPJ Web of Conferences, Vol 37, p

    2012  Band 09014

    Abstract: We describe recent results from the KEDR detector at the VEPP-4Mcollider. They include: a search for narrow resonances between 1.85 and 3.1 GeV, a test of leptonic universality by comparing partial widths of the J/ψ resonance into electron and muon pairs, ...

    Abstract We describe recent results from the KEDR detector at the VEPP-4Mcollider. They include: a search for narrow resonances between 1.85 and 3.1 GeV, a test of leptonic universality by comparing partial widths of the J/ψ resonance into electron and muon pairs, a determination of the main parameters of the ψ(2S) and a measurement of ψ(3770) parameters.
    Schlagwörter Physics ; QC1-999 ; Science ; Q ; DOAJ:Physics (General) ; DOAJ:Physics and Astronomy
    Sprache Englisch
    Erscheinungsdatum 2012-12-01T00:00:00Z
    Verlag EDP Sciences
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Buch ; Online: Measurement of \Gamma_{ee}(J/\psi)*Br(J/\psi->e^+e^-) and \Gamma_{ee}(J/\psi)*Br(J/\psi->\mu^+\mu^-)

    KEDR Collaboration / Anashin, V. V. / Aulchenko, V. M. / Baldin, E. M. / Barladyan, A. K. / Barnyakov, A. Yu. / Barnyakov, M. Yu. / Baru, S. E. / Bedny, I. V. / Beloborodova, O. L. / Blinov, A. E. / Blinov, V. E. / Bobrov, A. V. / Bobrovnikov, V. S. / Bogomyagkov, A. V. / Bondar, A. E. / Bondarev, D. V. / Buzykaev, A. R. / Eidelman, S. I. /
    Glukhovchenko, Yu. M. / Gulevich, V. V. / Gusev, D. V. / Karnaev, S. E. / Karpov, G. V. / Karpov, S. V. / Kharlamova, T. A. / Kiselev, V. A. / Kononov, S. A. / Kotov, K. Yu. / Kravchenko, E. A. / Kulikov, V. F. / Kurkin, G. Ya. / Kuper, E. A. / Levichev, E. B. / Maksimov, D. A. / Malyshev, V. M. / Maslennikov, A. L. / Medvedko, A. S. / Meshkov, O. I. / Mishnev, S. I. / Morozov, I. I. / Muchnoi, N. Yu. / Neufeld, V. V. / Nikitin, S. A. / Nikolaev, I. B. / Okunev, I. N. / Onuchin, A. P. / Oreshkin, S. B. / Orlov, I. O. / Osipov, A. A. / Peleganchuk, S. V. / Pivovarov, S. G. / Piminov, P. A. / Petrov, V. V. / Poluektov, A. O. / Popkov, I. N. / Prisekin, V. G. / Ruban, A. A. / Sandyrev, V. K. / Savinov, G. A. / Shamov, A. G. / Shatilov, D. N. / Shwartz, B. A. / Simonov, E. A. / Sinyatkin, S. V. / Skovpen, Yu. I. / Skrinsky, A. N. / Smaluk, V. V. / Sokolov, A. V. / Sukharev, A. M. / Starostina, E. V. / Talyshev, A. A. / Tayursky, V. A. / Telnov, V. I. / Tikhonov, Yu. A. / Todyshev, K. Yu. / Tumaikin, G. M. / Usov, Yu. V. / Vorobiov, A. I. / Yushkov, A. N. / Zhilich, V. N. / Zhulanov, V. V. / Zhuravlev, A. N.

    2009  

    Abstract: The products of the electron width of the J/\psi meson and the branching fraction of its decays to the lepton pairs were measured using data from the KEDR experiment at the VEPP-4M electron-positron collider. The results are \Gamma_{ee}(J/\psi)*Br(J/\psi- ...

    Abstract The products of the electron width of the J/\psi meson and the branching fraction of its decays to the lepton pairs were measured using data from the KEDR experiment at the VEPP-4M electron-positron collider. The results are \Gamma_{ee}(J/\psi)*Br(J/\psi->e^+e^-)=(0.3323\pm0.0064\pm0.0048) keV, \Gamma_{ee}(J/\psi)*Br(J/\psi->\mu^+\mu^-)=(0.3318\pm0.0052\pm0.0063) keV. Their combinations \Gamma_{ee}\times(\Gamma_{ee}+\Gamma_{\mu\mu})/\Gamma=(0.6641\pm0.0082\pm0.0100) keV, \Gamma_{ee}/\Gamma_{\mu\mu}=1.002\pm0.021\pm0.013 can be used to improve theaccuracy of the leptonic and full widths and test leptonic universality. Assuming e\mu universality and using the world average value of the lepton branching fraction, we also determine the leptonic \Gamma_{ll}=5.59\pm0.12 keV and total \Gamma=94.1\pm2.7 keV widths of the J/\psi meson.

    Comment: 7 pages, 6 figures
    Schlagwörter High Energy Physics - Experiment
    Thema/Rubrik (Code) 612
    Erscheinungsdatum 2009-12-06
    Erscheinungsland us
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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