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Your search keyword '"Filin, A.P."' showing total 14 results
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14 results on '"Filin, A.P."'

1. Search for heavy neutrino in K+→μ+νH decay

Author

Sadovsky, A.S., Kurshetsov, V.F., Filin, A.P., Akimenko, S.A., Artamonov, A.V., Blik, A.M., Brekhovskikh, V.V., Burtovoy, V.S., Bychkov, V.N., Donskov, S.V., Duk, V.A., Filippov, S.N., Gorin, A.M., Gushchin, E.N., Inyakin, A.V., Kekelidze, G.D., Khaustov, G.V., Kholodenko, S.A., Khudyakov, A.A., Kolosov, V.N., Konstantinov, A.S., Kravtsov, V.I., Kudenko, Yu. G., Leontiev, V.M., Lishin, V.A., Lysan, V.M., Medynsky, M.V., Mikhailov, Yu. V., Obraztsov, V.F., Polyakov, V.A., Polyarush, A. Yu., Popov, A.V., Romanovsky, V.I., Rykalin, V.I., Samoilenko, V.D., Semenov, V.K., Stenyakin, O.V., Tchikilev, O.G., Uvarov, V.A., Yushchenko, O.P., and Zalikhanov, B. Zh.

Abstract

A high statistics data sample of the K+→μ+νμ decay was accumulated by the OKA experiment in 2012. The missing mass analysis was performed to search for the decay channel K+→μ+νH with a hypothetic stable heavy neutrino in the final state. The obtained missing mass spectrum does not show peaks that could be attributed to existence of stable heavy neutrinos in the mass range (270

Published
2018

2. Beam test studies of the prototype Muon Veto System (MVS)

Author

Akimenko, S.A, Bolotov, V.N, Britvich, G.I, Britvich, I.G, Cooper, P.S, Filin, A.P, Inyakin, A.V, Korolkov, I.Y, Landsberg, L.G, Laptev, S.V, Molchanov, V.V, Novikov, V.P, Obraztsov, V.F, Petrenko, S.I, Polyakov, V.A, Ramberg, E, Smirnov, N.E, Tchikelev, O.G, Tschirhart, R.S, and Yushchenko, O.P

Published
2002
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3. Search for heavy neutrino in [formula omitted] decay at ISTRA+ setup

Author

Duk, V.A., Bolotov, V.N., Khudyakov, A.A., Lebedev, V.A., Makarov, A.I., Novikov, V.P., Polyarush, A.Yu., Akimenko, S.A., Britvich, G.I., Filin, A.P., Inyakin, A.V., Kholodenko, S.A., Leontiev, V.M., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Stenyakin, O.V., Tchikilev, O.G., Uvarov, V.A., and Yushchenko, O.P.

Published
2012
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5. Search for light pseudoscalar sgoldstino in [formula omitted] decays

Author

Tchikilev, O.G., Akimenko, S.A., Britvich, G.I., Datsko, K.V., Filin, A.P., Inyakin, A.V., Khmelnikov, V.A., Konstantinov, A.S., Konstantinov, V.F., Korolkov, I.Y., Leontiev, V.M., Novikov, V.P., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Shelikhov, V.I., Smirnov, N.E., Uvarov, V.A., Yushchenko, O.P., Bolotov, V.N., Laptev, S.V., Pastsjak, A.R., and Polyarush, A.Yu.

Published
2004
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6. High statistic measurement of the K−→π0e−ν decay form-factors

Author

Yushchenko, O.P., Akimenko, S.A., Britvich, G.I., Datsko, K.V., Filin, A.P., Inyakin, A.V., Konstantinov, A.S., Konstantinov, V.F., Korolkov, I.Y., Khmelnikov, V.A., Leontiev, V.M., Novikov, V.P., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Ronjin, V.M., Shelikhov, V.I., Smirnov, N.E., Tchikilev, O.G., Uvarov, V.A., Bolotov, V.N., Laptev, S.V., and Polyarush, A.Yu.

Published
2004
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7. High statistics study of the K−→π0μ−ν decay

Author

Yushchenko, O.P, Akimenko, S.A, Belous, K.S, Britvich, G.I, Britvich, I.G, Datsko, K.V, Filin, A.P, Inyakin, A.V, Konstantinov, A.S, Konstantinov, V.F, Korolkov, I.Y, Khmelnikov, V.A, Leontiev, V.M, Novikov, V.P, Obraztsov, V.F, Polyakov, V.A, Romanovsky, V.I, Ronjin, V.M, Shelikhov, V.I, Smirnov, N.E, Tchikilev, O.G, Uvarov, V.A, Bolotov, V.N, Laptev, S.V, Pastsjak, A.R, and Polyarush, A.Yu

Published
2004
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8. Study of the K−→π0e−ν decay

Author

Ajinenko, I.V., Akimenko, S.A., Belous, K.S., Britvich, G.I., Britvich, I.G., Datsko, K.V., Filin, A.P., Inyakin, A.V., Konstantinov, A.S., Konstantinov, V.F., Korolkov, I.Y., Khmelnikov, V.A., Leontiev, V.M., Novikov, V.P., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Ronjin, V.M., Shelikhov, V.I., Smirnov, N.E., Sokolov, A.A., Tchikilev, O.G., Uvarov, V.A., Yushchenko, O.P., Bolotov, V.N., Laptev, S.V., Pastsjak, A.R., Polyarush, A.Yu., and Sirodeev, R.Kh.

Published
2003
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9. Measurement of the Dalitz plot slope parameters for K−→π0π0π− decay using ISTRA+ detector

Author

Ajinenko, I.V, Akimenko, S.A, Britvich, G.I, Datsko, K.V, Filin, A.P, Inyakin, A.V, Konstantinov, A.S, Konstantinov, V.F, Korolkov, I.Y, Leontiev, V.M, Novikov, V.P, Obraztsov, V.F, Polyakov, V.A, Romanovsky, V.I, Shelikhov, V.I, Smirnov, N.E, Tchikilev, O.G, Uvarov, V.A, Yushchenko, O.P, Bolotov, V.N, Laptev, S.V, Pastsjak, A.R, Polyarush, A.Yu, and Sirodeev, R.Kh

Published
2003
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10. Extraction of kaon formfactors from K−→μ−νγ decay at ISTRA+ setup

Author

Duk, V.A., Bolotov, V.N., Lebedev, V.A., Khudyakov, A.A., Makarov, A.I., Polyarush, A.Yu., Novikov, V.P., Akimenko, S.A., Britvich, G.I., Filin, A.P., Inyakin, A.V., Korolkov, I.Ya., Leontiev, V.M., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Tchikilev, O.G., Uvarov, V.A., and Yushchenko, O.P.

Subjects
Kaon formfactors, Chiral perturbation theory, Radiative kaon decays
Abstract

The radiative decay K−→μ−νμγ has been studied at ISTRA+ setup in a new kinematic region. About 22K events of K−→μ−νμγ have been observed. The sign and value of FV−FA have been measured for the first time. The result is FV−FA=0.21±0.04(stat)±0.04(syst).

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11. High statistic measurement of the <f>K-→π0e-ν</f> decay form-factors

Author

Yushchenko, O.P., Akimenko, S.A., Britvich, G.I., Datsko, K.V., Filin, A.P., Inyakin, A.V., Konstantinov, A.S., Konstantinov, V.F., Korolkov, I.Y., Khmelnikov, V.A., Leontiev, V.M., Novikov, V.P., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Ronjin, V.M., Shelikhov, V.I., Smirnov, N.E., Tchikilev, O.G., and Uvarov, V.A.

Subjects
*NUCLEAR reactions, *NUCLEAR counters, *APPROXIMATION theory, *CALCULUS of tensors
Abstract

The decay K-→π0e-ν is studied using in-flight decays detected with the “ISTRA+” spectrometer. About 920K events are collected for the analysis. The λ+ slope parameter of the decay form-factor f+(t) in the linear approximation (average slope) is measured: λ+lin=0.02774±0.00047(stat)±0.00032(syst). The quadratic contribution to the form-factor was estimated to be λ′+=0.00084±0.00027(stat)±0.00031(syst). The linear slope, which has a meaning of df+(t)/dt&z.sfnc;t=0 for this fit, is λ+=0.02324±0.00152(stat)±0.00032(syst). The limits on possible tensor and scalar couplings are derived: fT/f+(0)=-0.012±0.021(stat)±0.011(syst), fS/f+(0)=-0.0037+0.0066-0.0056(stat)±0.0041(syst). [Copyright &y& Elsevier]

Published
2004
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12. High statistics study of the <f>K−→π0μ−ν</f> decay

Author

Yushchenko, O.P., Akimenko, S.A., Belous, K.S., Britvich, G.I., Britvich, I.G., Datsko, K.V., Filin, A.P., Inyakin, A.V., Konstantinov, A.S., Konstantinov, V.F., Korolkov, I.Y., Khmelnikov, V.A., Leontiev, V.M., Novikov, V.P., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Ronjin, V.M., Shelikhov, V.I., and Smirnov, N.E.

Subjects
*RADIOACTIVE decay, *SPECTROMETERS, *CALCULUS of tensors, *NUCLEAR physics
Abstract

The decay K−→π0μ−ν has been studied using in-flight decays detected with the “STRA+” spectrometer. About 540K events were collected for the analysis. The λ+ and λ0 slope parameters of the decay form-factors f+(t), f0(t) have been measured: λ+=0.0277±0.0013(stat)±0.0009(syst), λ0=0.0183±0.0011(stat)±0.0006(syst), and dλ0/dλ+=−0.348. The limits on the possible tensor and scalar couplings have been derived: fT/f+(0)=−0.0007±0.0071, fS/f+(0)=0.0017±0.0014. No visible non-linearity in the form-factors have been observed. [Copyright &y& Elsevier]

Published
2004
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13. Study of the <f>K−→π0e−ν</f> decay

Author

Ajinenko, I.V., Akimenko, S.A., Belous, K.S., Britvich, G.I., Britvich, I.G., Datsko, K.V., Filin, A.P., Inyakin, A.V., Konstantinov, A.S., Konstantinov, V.F., Korolkov, I.Y., Khmelnikov, V.A., Leontiev, V.M., Novikov, V.P., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Ronjin, V.M., Shelikhov, V.I., and Smirnov, N.E.

Subjects
*DECAY schemes (Radioactivity), *SPECTROMETERS
Abstract

The decay K−→π0eν has been studied using in-flight decays detected with the “ISTRA+” spectrometer operating in the 25-GeV negative secondary beam of the U-70 PS. About 550K events were collected for the analysis. The λ+ parameter of the vector form-factor has been measured: λ+=0.0286±0.0008(stat)±0.0006(syst). The limits on the possible tensor and scalar couplings have been obtained: fT/f+(0)=0.021+0.064−0.075(stat)±0.026(syst); fS/f+(0)=0.002+0.020−0.022(stat)±0.003(syst). [Copyright &y& Elsevier]

Published
2003
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14. Measurement of the Dalitz plot slope parameters for <f>K−→π0π0π−</f> decay using ISTRA<f>+</f> detector

Author

Ajinenko, I.V., Akimenko, S.A., Britvich, G.I., Datsko, K.V., Filin, A.P., Inyakin, A.V., Konstantinov, A.S., Konstantinov, V.F., Korolkov, I.Y., Leontiev, V.M., Novikov, V.P., Obraztsov, V.F., Polyakov, V.A., Romanovsky, V.I., Shelikhov, V.I., Smirnov, N.E., Tchikilev, O.G., Uvarov, V.A., Yushchenko, O.P., and Bolotov, V.N.

Subjects
*ELECTRON beams, *PHOTONS
Abstract

The Dalitz plot slope parameters g, h and k for the K−→π0π0π− decay have been measured using in-flight decays detected with the ISTRA+ setup operating in the 25 GeV negative secondary beam of the U-70 PS. About 252 K events with four-momenta measured for the π− and four involved photons were used for the analysis. The values obtained g=0.627±0.004(stat)±0.010(syst), h=0.046±0.004(stat)±0.012(syst), k=0.001±0.001(stat)±0.002(syst) are consistent with the world averages dominated by K+ data, but have significantly smaller errors. [Copyright &y& Elsevier]

Published
2003
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