Measurement of $J/\psi\to\gamma\eta_{\rm c}$ decay rate and $\eta_{\rm c}$ parameters at KEDR

Autor: Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Bedny, I. V., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., 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., Pospelov, G. E., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. 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.

Publikováno v: Phys. Lett. B 738 (2014), 391-396

Using the inclusive photon spectrum based on a data sample collected at the $J/\psi$ peak with the KEDR detector at the VEPP-4M $e^+e^-$ collider, we measured the rate of the radiative decay $J/\psi\to\gamma\eta_{\rm c}$ as well as $\eta_{\rm c}$ mas

Externí odkaz: http://arxiv.org/abs/1406.7644

Measurement of \psi(3770) parameters

Autor: Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., 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., 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., 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.

Publikováno v: Physics Letters B 711 (2012), pp. 292-300

We report the final results of a study of the \psi(3770) meson using a data sample collected with the KEDR detector at the VEPP-4M electron-positron collider. The data analysis takes into account the interference between the resonant and nonresonant

Externí odkaz: http://arxiv.org/abs/1109.4205

Search for narrow resonances in e+ e- annihilation between 1.85 and 3.1 GeV with the KEDR Detector

Autor: KEDR Collaboration, Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., 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., 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., 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.

We report results of a search for narrow resonances in e+ e- annihilation at center-of-mass energies between 1.85 and 3.1 GeV performed with the KEDR detector at the VEPP-4M e+ e- collider. The upper limit on the leptonic width of a narrow resonance

Externí odkaz: http://arxiv.org/abs/1107.2824

Measurement of J/psi to eta_c gamma at KEDR

Autor: 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., 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., Milstein, A. 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., Pospelov, G. E., 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., 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.

We present a study of the inclusive photon spectra from 5.9 million J/psi decays collected with the KEDR detector at the VEPP-4M e+e- collider. We measure the branching fraction of radiative decay J/psi to eta_c gamma, eta_c width and mass. Our preli

Externí odkaz: http://arxiv.org/abs/1002.2071

Measurement of \Gamma_{ee}(J/\psi)*Br(J/\psi->e^+e^-) and \Gamma_{ee}(J/\psi)*Br(J/\psi->\mu^+\mu^-)

Autor: 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.

Publikováno v: Phys.Lett.B685:134-140,2010

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/

Externí odkaz: http://arxiv.org/abs/0912.1082