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4 results on '"T. A. Purlats"'

1. The CMD-2 cryogenic magnetic detector

Author

E. P. Solodov, S.V. Karpov, P.Yu. Stepanov, T. A. Purlats, Vassili Kazanin, A.A. Ruban, S.I. Redin, S. G. Pivovarov, I.G. Snopkov, V.G Zavarzin, V.P. Smakhtin, M.A. Nikulin, V.M. Titov, D.A. Gorbachev, V.S. Okhapkin, V.A. Sidorov, V. E. Fedorenko, B.I. Khazin, P. P. Krokovnyi, P.A. Lukin, S.E. Baru, S.I. Eidelman, E.V. Anashkin, A. N. Skrinskii, B. N. Shuvalov, A. B. Nomerotskii, A. Bondar, L.M. Barkov, A.A. Grebenyuk, R.R. Akhmetshin, A. S. Zaitsev, N. S. Bashtovoi, A.V. Bragin, Yu.V. Yudin, V.M. Aulchenko, A.L. Sibidanov, Fedor Ignatov, V. A. Monich, D. Epifanov, D.V. Chernyak, K.Yu. Mikhailov, D. N. Grigorev, Yu. M. Shatunov, I. V. Zhuravkov, A.S. Kuzmin, G. M. Kolachev, N. Gabyshev, I.B. Logashenko, N.M. Ryskulov, V.Sh. Banzarov, S.G. Zverev, A.G. Shamov, D.V. Bondarev, A.I. Sukhanov, A.S. Popov, N.I. Root, G.V. Fedotovich, and B. A. Shvarts

Subjects
Superconductivity, Physics, Physics::Instrumentation and Detectors, business.industry, Detector, Magnetic tape, Magnetic detector, law.invention, Superconducting solenoid, Optics, Nuclear magnetic resonance, law, High Energy Physics::Experiment, business, Transformer, Instrumentation
Abstract

The CMD-2 cryogenic magnetic detector used in a set of experiments on the VEPP-2M electron-positron collider at energies as great as 1.4 GeV is described. The design of the detector subsystems and the algorithms for reconstructing tracks in the drift chamber and the CsI and BGO calorimeters are presented. The spatial and energy resolutions of the detector systems have been determined from analysis of experimental data. The design of the superconducting solenoid and the layout of its powering by means of a superconducting transformer are shown. The trigger system of the detector and the conditions for recording “charged” and “neutral” events on a magnetic tape are described. The procedure used to monitor the parameters of the detector systems during the experiment is presented.

Published
2006

2. Measurement of φ meson parameters with CMD-2 detector at VEPP-2M collider

Author

I.G. Snopkov, V.V Danilov, B.A. Shwartz, A.A. Grebeniuk, W. A. Worstell, A.A Ruban, Igor Nesterenko, V.G Zavarzin, G.V. Fedotovich, C.M Valine, D.H Brown, M.A Shubin, B.L. Roberts, B.O Baibusinov, V.M. Titov, I.B. Logashenko, N. Gabyshev, V.M Aulchenko, E. P. Solodov, V. W. Hughes, A.V Maksimov, Yu.I Merzlyakov, B.I. Khazin, A.I. Sukhanov, N.M. Ryskulov, S.E Baru, A.N. Skrinsky, S. K. Dhawan, R.R. Akhmetshin, G.A Aksenov, V. S. Banzarov, P. Cushman, J. A. Thompson, D.N. Grigoriev, T. A. Purlats, V.S. Okhapkin, S.I. Eidelman, J. P. Miller, V.A. Sidorov, A.A Polumin, A.E Sher, V.I Ptitzyn, I. A. Koop, P.M. Ivanov, Yu. M. Shatunov, A.P. Lysenko, E.V Popkov, Yu.V. Yudin, A.S. Kuzmin, N.I Root, E.A. Perevedentsev, S.I. Redin, V.P. Smakhtin, A. Bondar, L.M. Barkov, V.A Monitch, and E.V Anashkin

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Meson, Physics::Instrumentation and Detectors, Hadron, Detector, law.invention, Nuclear physics, General purpose, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Collider
Abstract

Results of the measurement of the φ meson parameters with the general purpose detector CMD-2 at the upgraded e + e − collider VEPP-2M at Novosibirsk are presented. This is the first measurement of the four major φ decay modes in a single e + e − experiment. The results based on about 55,600 identified hadronic events are consistent with previous measurements, and have precision comparable to the current world average.

Published
1995

3. Study of KS KL Coupled Decays and KL -Be Interactions with the CMD-2 Detector at VEPP-2M Collider

Author

V.A. Sidorov, Igor Nesterenko, B.O Baibusinov, A.E Sher, I. A. Koop, N.M. Ryskulov, J. A. Thompson, E.A. Perevedentsev, N.I. Root, G.V. Fedotovich, D.H Brown, M.A Shubin, V.G Zavarzin, V.V Danilov, Yu. M. Shatunov, A.P. Lysenko, S.I. Eidelman, A.A. Ruban, S.I. Redin, V.M. Titov, A.A. Grebeniuk, Yu.V. Yudin, A. Bondar, L.M. Barkov, A.A. Polunin, V.P. Smakhtin, A.I. Sukhanov, E.V Popkov, D.N. Grigoriev, V.M Aulchenko, B.A. Shwartz, E.V Anashkin, A.V Maksimov, B.I. Khazin, Alexander Skrinsky, B.L. Roberts, I.B. Logashenko, V. S. Banzarov, E. P. Solodov, G.A Aksenov, A.S. Kuzmin, V.I Ptitzyn, P.M. Ivanov, D.V. Chernyak, V.S. Okhapkin, I.G. Snopkov, S. K. Dhawan, Yu.I Merzlyakov, S.E Baru, T. A. Purlats, P.A. Lukin, C.M Valine, W. A. Worstell, V. W. Hughes, N. Gabyshev, P. Cushman, R.R. Akhmetshin, and J. P. Miller

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Meson, Detector, High Energy Physics::Phenomenology, Charged particle, law.invention, High Energy Physics - Experiment, Nuclear physics, Angular distribution, law, High Energy Physics::Experiment, Collider, Beam (structure)
Abstract

The integrated luminosity about 4000 inverse nanobarn of around phi meson mass ( 5 millions of phi mesons) has been collected with the CMD-2 detector at the VEPP-2M collider. A latest analysis of the KS KL coupled decays based on 30 % of available data is presented in this paper. The KS KL pairs from phi meson decays were reconstructed in the drift chamber when both kaons decayed into two charged particles. From a sample of 1423 coupled decays a selection of candidates to the CP violating KL into pi+ pi- decay was performed. CP violating decays were not identified because of the domination of events with a KL regenerating at the Be beam pipe into KS and a background from KL semileptonic decays. The regeneration cross section of 110 MeV/c KL mesons was found to be 53 +- 17 mb in agreement with theoretical expectations. The angular distribution of KS mesons after regeneration and the total cross section of KL for Be have been measured., Comment: 14 pages, 8 figures

Published
1997

4. Preliminary results from the CMD-2 detector

Author

I.G. Snopkov, Yu. M. Shatunov, Ivan Koop, A. P. Lysenko, G.A Aksenov, J. P. Miller, D.H Brown, M.A Shubin, B. L. Roberts, L. A. Leontyev, B.I. Khazin, V. W. Hughes, B.O Baibusinov, Vladimir Smakhtin, A.I. Shekhtman, V.G Zavarzin, A.E. Bondar, S.I. Redin, V.M. Titov, R.R. Akhmetshin, V.S. Okhapkin, N. S. Bashtovoi, W. A. Worstell, V.A. Sidorov, V. E. Fedorenko, A.N. Skrinsky, N.I. Root, I. B. Vasserman, M. Yu. Lelchuk, S.E. Baru, T. A. Purlats, A. B. Nomerotsky, C. H. Yang, Yu.V. Yudin, P.M. Ivanov, J. A. Thompson, Satish Dhawan, G.V. Fedotovitch, N.M. Ryskulov, Evgeny Perevedentsev, L.M. Barkov, E.V. Anashkin, B. Shwartz, Yu.I Merzlyakov, I. V. Zhuravkov, V. M. Aulchenko, P. Cushman, A.V Maksimov, V. S. Banzarov, S.G. Pivovarov, E. P. Solodov, A.A. Grebeniuk, A.S. Kuzmin, D.N. Grigoriev, and S. Eidelman

Subjects
Physics, Particle physics, Luminosity (scattering theory), Electromagnet, Physics::Instrumentation and Detectors, Detector, Particle accelerator, Magnetic detector, Particle detector, law.invention, Nuclear physics, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Center of mass, Collider
Abstract

A new general‐purpose detector CMD‐2 (calorimetric magnetic detector) has started experiments at the upgraded e+e− collider VEPP‐2M (collider for electron‐positron beams) at Novosibirsk. During early runs an integrated luminosity of about 400 inverse nanobarns has been collected in the center of mass energy range 400–1030 MeV.

Published
1992

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