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Your search keyword '"Kravchuk, N."' showing total 8 results
Start Over Author "Kravchuk, N." Journal physical review letters
8 results on '"Kravchuk, N."'

1. New constraint on the existence of the μ+ → e+ γ decay

Author

Adam, J., Bai, X., Baldini, A. M., Baracchini, E., Bemporad, C., Boca, G., Cattaneo, P. W., Cavoto, G., Cei, F., Cerri, C., de Bari, A., De Gerone, M., Doke, T., Dussoni, S., Egger, J., Fujii, Y., Galli, L., Gatti, Flavio, Golden, B., Grassi, M., Graziosi, A., Grigoriev, D. N., Haruyama, T., Hildebrandt, M., Hisamatsu, Y., Ignatov, F., Iwamoto, T., Kaneko, D., Kettle, P. R., Khazin, B. I., Khomotov, N., Kiselev, O., Korenchenko, A., Kravchuk, N., Lim, G., Maki, A., Mihara, S., Molzon, W., Mori, T., Mzavia, D., Nardò, R., Natori, H., Nicolò, D., Nishiguchi, H., Nishimura, Y., Ootani, W., Panareo, M., Papa, A., Piredda, G., Popov, A., Renga, F., Ripiccini, E., Ritt, S., Rossella, M., Sawada, R., Sergiampietri, F., Signorelli, G., Suzuki, S., Tenchini, F., Topchyan, C., Uchiyama, Y., Voena, C., Xiao, F., Yamada, S., Yamamoto, A., Yamashita, S., You, Z., Yudin, Y. u. V., Zanello, D., Adam, J, Bai, X, Baldini, A. M, Baracchini, E, Bemporad, C, Boca, G, Cattaneo, P. W, Cavoto, G, Cei, F, Cerri, C, de Bari, A, De Gerone, M, Doke, T, Dussoni, S, Egger, J, Fujii, Y, Galli, L, Gatti, F, Golden, B, Grassi, M, Graziosi, A, Grigoriev, D. N, Haruyama, T, Hildebrandt, M, Hisamatsu, Y, Ignatov, F, Iwamoto, T, Kaneko, D, Kettle, P. R, Khazin, B. I, Khomotov, N, Kiselev, O, Korenchenko, A, Kravchuk, N, Lim, G, Maki, A, Mihara, S, Molzon, W, Mori, T, Mzavia, D, Nardò, R, Natori, H, Nicolò, D, Nishiguchi, H, Nishimura, Y, Ootani, W, Panareo, Marco, Papa, A, Piredda, G, Popov, A, Renga, F, Ripiccini, E, Ritt, S, Rossella, M, Sawada, R, Sergiampietri, F, Signorelli, G, Suzuki, S, Tenchini, F, Topchyan, C, Uchiyama, Y, Voena, C, Xiao, F, Yamada, S, Yamamoto, A, Yamashita, S, You, Z, Yudin, Yu V, and Zanello, D.

Subjects
Physics and Astronomy (all), Muon, Lepton Flavor Violation
Abstract

The analysis of a combined data set, totaling 3.6 × 10(14) stopped muons on target, in the search for the lepton flavor violating decay μ(+) → e(+)γ is presented. The data collected by the MEG experiment at the Paul Scherrer Institut show no excess of events compared to background expectations and yield a new upper limit on the branching ratio of this decay of 5.7 × 10(-13) (90% confidence level). This represents a four times more stringent limit than the previous world best limit set by MEG.

Published
2013

2. New limit on the lepton-flavor-violating decay μ+→e+γ

Author

Adam, J., Bai, X., Baldini, A. M., Baracchini, E., Bemporad, C., Boca, G., Cattaneo, P. W., Cavoto, Gianluca, Cei, F., Cerri, C., De Bari, A., De Gerone, M., Doke, T., Dussoni, S., Egger, J., Fratini, K., Fujii, Y., Galli, L., Gallucci, G., Gatti, F., Golden, B., Grassi, M., Grigoriev, D. N., Haruyama, T., Hildebrandt, M., Hisamatsu, Y., Ignatov, F., Iwamoto, T., Kettle, P. R., Khazin, B. I., Kiselev, O., Korenchenko, A., Kravchuk, N., Maki, A., Mihara, S., Molzon, W., Mori, T., Mzavia, D., Natori, H., Nicolò, D., Nishiguchi, H., Nishimura, Y., Ootani, W., Panareo, M., Papa, A., Pazzi, R., Piredda, G., Popov, A., Renga, F., Ritt, S., Rossella, M., Sawada, R., Sergiampietri, F., Signorelli, G., Suzuki, S., Tenchini, F., Topchyan, C., Uchiyama, Y., Valle, R., Voena, C., Xiao, F., Yamada, S., Yamamoto, A., Yamashita, S., Yudin, Y. u. V., and Zanello, D.

Subjects
Physics and Astronomy (all)
Abstract

We present a new result based on an analysis of the data collected by the MEG detector at the Paul Scherrer Institut in 2009 and 2010, in search of the lepton-flavor-violating decay μ(+)e(+)γ. The likelihood analysis of the combined data sample, which corresponds to a total of 1.8×10(14) muon decays, gives a 90% C.L. upper limit of 2.4×10(-12) on the branching ratio of the μ(+)→e(+)γ decay, constituting the most stringent limit on the existence of this decay to date.

Published
2011

3. New Precise Measurement of the Pion Weak Form Factors inπ+→e+νγDecay

Author

Bychkov, M., primary, Počanić, D., additional, VanDevender, B. A., additional, Baranov, V. A., additional, Bertl, W., additional, Bystritsky, Yu. M., additional, Frlež, E., additional, Kalinnikov, V. A., additional, Khomutov, N. V., additional, Korenchenko, A. S., additional, Korenchenko, S. M., additional, Korolija, M., additional, Kozlowski, T., additional, Kravchuk, N. P., additional, Kuchinsky, N. A., additional, Li, W., additional, Mekterović, D., additional, Mzhavia, D., additional, Ritt, S., additional, Robmann, P., additional, Rondon-Aramayo, O. A., additional, Rozhdestvensky, A. M., additional, Sakhelashvili, T., additional, Scheu, S., additional, Straumann, U., additional, Supek, I., additional, Tsamalaidze, Z., additional, van der Schaaf, A., additional, Velicheva, E. P., additional, Volnykh, V. P., additional, Wang, Y., additional, and Wirtz, H.-P., additional

Published
2009
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4. First Measurement of the Transverse Spin Asymmetries of the Deuteron in Semi-inclusive Deep Inelastic Scattering

Author

Alexakhin, V. Yu., primary, Alexandrov, Yu., additional, Alexeev, G. D., additional, Amoroso, A., additional, Badełek, B., additional, Balestra, F., additional, Ball, J., additional, Baum, G., additional, Bedfer, Y., additional, Berglund, P., additional, Bernet, C., additional, Bertini, R., additional, Birsa, R., additional, Bisplinghoff, J., additional, Bradamante, F., additional, Bravar, A., additional, Bressan, A., additional, Burtin, E., additional, Bussa, M. P., additional, Cerini, L., additional, Chapiro, A., additional, Cicuttin, A., additional, Colantoni, M., additional, Colavita, A. A., additional, Costa, S., additional, Crespo, M. L., additional, d’Hose, N., additional, Dalla Torre, S., additional, Dasgupta, S. S., additional, De Masi, R., additional, Dedek, N., additional, Denisov, O. Yu., additional, Dhara, L., additional, Diaz Kavka, V., additional, Dolgopolov, A. V., additional, Donskov, S. V., additional, Dorofeev, V. A., additional, Doshita, N., additional, Duic, V., additional, Dünnweber, W., additional, Efremov, A., additional, Ehlers, J., additional, Eversheim, P. D., additional, Eyrich, W., additional, Fabro, M., additional, Faessler, M., additional, Fauland, P., additional, Ferrero, A., additional, Ferrero, L., additional, Finger, M., additional, Fischer, H., additional, Franz, J., additional, Friedrich, J. M., additional, Frolov, V., additional, Fuchs, U., additional, Garfagnini, R., additional, Gautheron, F., additional, Gavrichtchouk, O. P., additional, Gerassimov, S., additional, Geyer, R., additional, Giorgi, M., additional, Gobbo, B., additional, Goertz, S., additional, Grajek, O. A., additional, Grasso, A., additional, Grube, B., additional, Grünemaier, A., additional, Gustafsson, K., additional, Hannappel, J., additional, von Harrach, D., additional, Hasegawa, T., additional, Hedicke, S., additional, Heinsius, F. H., additional, Hinterberger, F., additional, von Hodenberg, M., additional, Horikawa, N., additional, Horikawa, S., additional, Ijaduola, R. B., additional, Ilgner, C., additional, Ishimoto, S., additional, Iwata, T., additional, Jahn, R., additional, Janata, A., additional, Joosten, R., additional, Jouravlev, N. I., additional, Kabuß, E., additional, Kalinnikov, V., additional, Kang, D., additional, Karstens, F., additional, Kastaun, W., additional, Ketzer, B., additional, Khaustov, G. V., additional, Khokhlov, Yu. A., additional, Kisselev, Yu., additional, Klein, F., additional, Koivuniemi, J. H., additional, Kolosov, V. N., additional, Komissarov, E. V., additional, Kondo, K., additional, Königsmann, K., additional, Konoplyannikov, A. K., additional, Konorov, I., additional, Konstantinov, V. F., additional, Korentchenko, A. S., additional, Korzenev, A., additional, Kotzinian, A. M., additional, Koutchinski, N. A., additional, Kowalik, K., additional, Kravchuk, N. P., additional, Krivokhizhin, G. V., additional, Kroumchtein, Z. V., additional, Kuhn, R., additional, Kunne, F., additional, Kurek, K., additional, Lamanna, M., additional, Le Goff, J. M., additional, Leberig, M., additional, Lichtenstadt, J., additional, Maggiora, A., additional, Maggiora, M., additional, Magnon, A., additional, Mallot, G. K., additional, Manuilov, I. V., additional, Marchand, C., additional, Marroncle, J., additional, Martin, A., additional, Marzec, J., additional, Matsuda, T., additional, Maximov, A. N., additional, Medved, K. S., additional, Meyer, W., additional, Mielech, A., additional, Mikhailov, Yu. V., additional, Moinester, M. A., additional, Nähle, O., additional, Nassalski, J., additional, Neyret, D. P., additional, Nikolaenko, V. I., additional, Nozdrin, A. A., additional, Obraztsov, V. F., additional, Olshevsky, A. G., additional, Ostrick, M., additional, Padee, A., additional, Pagano, P., additional, Panebianco, S., additional, Panzieri, D., additional, Paul, S., additional, Pereira, H. D., additional, Peshekhonov, D. V., additional, Peshekhonov, V. D., additional, Piragino, G., additional, Platchkov, S., additional, Platzer, K., additional, Pochodzalla, J., additional, Polyakov, V. A., additional, Popov, A. A., additional, Pretz, J., additional, Rebourgeard, P. C., additional, Reicherz, G., additional, Reymann, J., additional, Rozhdestvensky, A. M., additional, Rondio, E., additional, Sadovski, A. B., additional, Saller, E., additional, Samoylenko, V. D., additional, Sandacz, A., additional, Sans, M., additional, Sapozhnikov, M. G., additional, Savin, I. A., additional, Schiavon, P., additional, Schmidt, T., additional, Schmitt, H., additional, Schmitt, L., additional, Shishkin, A. A., additional, Siebert, H., additional, Sinha, L., additional, Sissakian, A. N., additional, Skachkova, A., additional, Slunecka, M., additional, Smirnov, G. I., additional, Sugonyaev, V. P., additional, Stinzing, F., additional, Sulej, R., additional, Takabayashi, N., additional, Tchalishev, V. V., additional, Tessarotto, F., additional, Teufel, A., additional, Thers, D., additional, Tkatchev, L. G., additional, Toeda, T., additional, Tretyak, V. I., additional, Trousov, S., additional, Vlassov, N. V., additional, Webb, R., additional, Weise, E., additional, Wiesmann, M., additional, Windmolders, R., additional, Wirth, S., additional, Wiślicki, W., additional, Zanetti, A. M., additional, Zaremba, K., additional, Zhao, J., additional, Ziegler, R., additional, and Zvyagin, A., additional

Published
2005
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5. Precise Measurement of the Pion Axial Form Factor in theπ+→e+νγDecay

Author

Frlež, E., primary, Počanić, D., additional, Baranov, V. A., additional, Bertl, W., additional, Bychkov, M., additional, Khomutov, N. V., additional, Korenchenko, A. S., additional, Korenchenko, S. M., additional, Kozlowski, T., additional, Kravchuk, N. P., additional, Kuchinsky, N. A., additional, Li, W., additional, Minehart, R. C., additional, Mzhavia, D., additional, Ritchie, B. G., additional, Ritt, S., additional, Rozhdestvensky, A. M., additional, Sidorkin, V. V., additional, Smith, L. C., additional, Supek, I., additional, Tsamalaidze, Z., additional, VanDevender, B. A., additional, Velicheva, E. P., additional, Wang, Y., additional, Wirtz, H.-P., additional, and Ziock, K. O. H., additional

Published
2004
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6. Precise Measurement of theπ+→π0e+νBranching Ratio

Author

Počanić, D., primary, Frlež, E., additional, Baranov, V. A., additional, Bertl, W., additional, Brönnimann, Ch., additional, Bychkov, M., additional, Crawford, J. F., additional, Daum, M., additional, Khomutov, N. V., additional, Korenchenko, A. S., additional, Korenchenko, S. M., additional, Kozlowski, T., additional, Kravchuk, N. P., additional, Kuchinsky, N. A., additional, Li, W., additional, Minehart, R. C., additional, Mzhavia, D., additional, Ritchie, B. G., additional, Ritt, S., additional, Rozhdestvensky, A. M., additional, Sidorkin, V. V., additional, Smith, L. C., additional, Supek, I., additional, Tsamalaidze, Z., additional, VanDevender, B. A., additional, Wang, Y., additional, Wirtz, H.-P., additional, and Ziock, K. O. H., additional

Published
2004
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7. New Bounds from a Search for Muonium to Antimuonium Conversion

Author

Willmann, L., primary, Schmidt, P. V., additional, Wirtz, H. P., additional, Abela, R., additional, Baranov, V., additional, Bagaturia, J., additional, Bertl, W., additional, Engfer, R., additional, Großmann, A., additional, Hughes, V. W., additional, Jungmann, K., additional, Karpuchin, V., additional, Kisel, I., additional, Korenchenko, A., additional, Korenchenko, S., additional, Kravchuk, N., additional, Kuchinsky, N., additional, Leuschner, A., additional, Meyer, V., additional, Merkel, J., additional, Moiseenko, A., additional, Mzavia, D., additional, zu Putlitz, G., additional, Reichart, W., additional, Reinhard, I., additional, Renker, D., additional, Sakhelashvilli, T., additional, Träger, K., additional, and Walter, H. K., additional

Published
1999
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8. Precise measurement of the pi+-->pi0 e+nu branching ratio.

Author

Pocanić D, Frlez E, Baranov VA, Bertl W, Brönnimann Ch, Bychkov M, Crawford JF, Daum M, Khomutov NV, Korenchenko AS, Korenchenko SM, Kozlowski T, Kravchuk NP, Kuchinsky NA, Li W, Minehart RC, Mzhavia D, Ritchie BG, Ritt S, Rozhdestvensky AM, Sidorkin VV, Smith LC, Supek I, Tsamalaidze Z, VanDevender BA, Wang Y, Wirtz HP, and Ziock KO

Abstract

Using a large acceptance calorimeter and a stopped pion beam we have made a precise measurement of the rare pi(+)-->pi(0)e(+)nu (pi(beta)) decay branching ratio. We have evaluated the branching ratio by normalizing the number of observed pi(beta) decays to the number of observed pi(+)-->e(+)nu (pi(e2)) decays. We find the value of Gamma(pi(+)-->pi(0)e(+)nu)/Gamma(total)=[1.036+/-0.004(stat)+/-0.004(syst)+/-0.003(pi(e2))]x10(-8), where the first uncertainty is statistical, the second systematic, and the third is the pi(e2) branching ratio uncertainty. Our result agrees well with the standard model prediction.

Published
2004
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