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6. Study of doubly strange systems using stored antiprotons

Author

Singh, B., Erni, W., Krusche, B., Steinacher, M., Walford, N., Liu, B., Liu, H., Liu, Z., Shen, X., Wang, C., Zhao, J., Albrecht, M., Erlen, T., Fink, M., Heinsius, F., Held, T., Holtmann, T., Jasper, S., Keshk, I., Koch, H., Kopf, B., Kuhlmann, M., Kümmel, M., Leiber, S., Mikirtychyants, M., Musiol, P., Mustafa, A., Pelizäus, M., Pychy, J., Richter, M., Schnier, C., Schröder, T., Sowa, C., Steinke, M., Triffterer, T., Wiedner, U., Ball, M., Beck, R., Hammann, C., Ketzer, B., Kube, M., Mahlberg, P., Rossbach, M., Schmidt, C., Schmitz, R., Thoma, U., Urban, M., Walther, D., Wendel, C., Wilson, A., Bianconi, A., Bragadireanu, M., Caprini, M., Pantea, D., Patel, B., Czyzycki, W., Domagala, M., Filo, G., Jaworowski, J., Krawczyk, M., Lisowski, E., Lisowski, F., Michałek, M., Poznański, P., Płażek, J., Korcyl, K., Kozela, A., Kulessa, P., Lebiedowicz, P., Pysz, K., Schäfer, W., Szczurek, A., Fiutowski, T., Idzik, M., Mindur, B., Przyborowski, D., Swientek, K., Biernat, J., Kamys, B., Kistryn, S., Korcyl, G., Krzemien, W., Magiera, A., Moskal, P., Psyzniak, A., Rudy, Z., Salabura, P., Smyrski, J., Strzempek, P., Wronska, A., Augustin, I., Böhm, R., Lehmann, I., Nicmorus Marinescu, D., Schmitt, L., Varentsov, V., Al-Turany, M., Belias, A., Deppe, H., Dzhygadlo, R., Ehret, A., Flemming, H., Gerhardt, A., Götzen, K., Gromliuk, A., Gruber, L., Karabowicz, R., Kliemt, R., Krebs, M., Kurilla, U., Lehmann, D., Löchner, S., Lühning, J., Lynen, U., Orth, H., Patsyuk, M., Peters, K., Saito, T., Schepers, G., Schmidt, C.J., Schwarz, C., Schwiening, J., Täschner, A., Traxler, M., Ugur, C., Voss, B., Wieczorek, P., Wilms, A., Zühlsdorf, M., Abazov, V.M., Alexeev, G., Arefiev, A., Astakhov, V.I., Barabanov, M.Yu., Batyunya, B.V., Davydov, Yu.I., Dodokhov, V.Kh., Efremov, A.A., Fechtchenko, A., Fedunov, A.G., Galoyan, A., Grigoryan, S., Koshurnikov, E.K., Lobanov, V.I., Lobanov, Y.Yu., Makarov, A.F., Malinina, L.V., Malyshev, V.L., Olshevskiy, A., Perevalova, E., Piskun, A.A., Pocheptsov, T., Pontecorvo, G., Rodionov, V., Rogov, Y., Salmin, R., Samartsev, A., Sapozhnikov, M.G., Shabratova, G., Skachkov, N.B., Skachkova, A.N., Strokovsky, E.A., Suleimanov, M., Teshev, R., Tokmenin, V., Uzhinsky, V., Vodopyanov, A., Zaporozhets, S.A., Zhuravlev, N.I., Zorin, A.G., Branford, D., Glazier, D., Watts, D., Böhm, M., Britting, A., Eyrich, W., Lehmann, A., Pfaffinger, M., Uhlig, F., Dobbs, S., Seth, K., Tomaradze, A., Xiao, T., Bettoni, D., Carassiti, V., Cotta Ramusino, A., Dalpiaz, P., Drago, A., Fioravanti, E., Garzia, I., Savriè, M., Akishina, V., Kisel, I., Kozlov, G., Pugach, M., Zyzak, M., Gianotti, P., Guaraldo, C., Lucherini, V., Bersani, A., Bracco, G., Macri, M., Parodi, R.F., Biguenko, K., Brinkmann, K., Di Pietro, V., Diehl, S., Dormenev, V., Drexler, P., Düren, M., Etzelmüller, E., Galuska, M., Gutz, E., Hahn, C., Hayrapetyan, A., Kesselkaul, M., Kühn, W., Kuske, T., Lange, J.S., Liang, Y., Metag, V., Nanova, M., Nazarenko, S., Novotny, R., Quagli, T., Reiter, S., Rieke, J., Rosenbaum, C., Schmidt, M., Schnell, R., Stenzel, H., Thöring, U., Ullrich, M., Wagner, M.N., Wasem, T., Wohlfarth, B., Zaunick, H., Ireland, D., Rosner, G., Seitz, B., Deepak, P.N., Kulkarni, A., Apostolou, A., Babai, M., Kavatsyuk, M., Lemmens, P., Lindemulder, M., Loehner, H., Messchendorp, J., Schakel, P., Smit, H., Tiemens, M., van der Weele, J.C., Veenstra, R., Vejdani, S., Dutta, K., Kalita, K., Kumar, A., Roy, A., Sohlbach, H., Bai, M., Bianchi, L., Büscher, M., Cao, L., Cebulla, A., Dosdall, R., Gillitzer, A., Goldenbaum, F., Grunwald, D., Herten, A., Hu, Q., Kemmerling, G., Kleines, H., Lehrach, A., Nellen, R., Ohm, H., Orfanitski, S., Prasuhn, D., Prencipe, E., Pütz, J., Ritman, J., Schadmand, S., Sefzick, T., Serdyuk, V., Sterzenbach, G., Stockmanns, T., Wintz, P., Wüstner, P., Xu, H., Zambanini, A., Li, S., Li, Z., Sun, Z., Rigato, V., Isaksson, L., Achenbach, P., Corell, O., Denig, A., Distler, M., Hoek, M., Karavdina, A., Lauth, W., Merkel, H., Müller, U., Pochodzalla, J., Schlimme, S., Sfienti, C., Thiel, M., Ahmadi, H., Ahmed, S., Bleser, S., Capozza, L., Cardinali, M., Dbeyssi, A., Deiseroth, M., Feldbauer, F., Fritsch, M., Fröhlich, B., Jasinski, P., Kang, D., Khaneft, D., Klasen, R., Leithoff, H.H., Lin, D., Maas, F., Maldaner, S., Martìnez Rojo, M., Marta, M., Michel, M., Mora Espì, M.C., Morales Morales, C., Motzko, C., Nerling, F., Noll, O., Pflüger, S., Pitka, A., Rodríguez Piñeiro, D., Sanchez Lorente, A., Steinen, M., Valente, R., Weber, T., Zambrana, M., Zimmermann, I., Fedorov, A., Korjik, M., Missevitch, O., Boukharov, A., Malyshev, O., Marishev, I., Balanutsa, P., Balanutsa, V., Chernetsky, V., Demekhin, A., Dolgolenko, A., Fedorets, P., Gerasimov, A., Goryachev, V., Chandratre, V., Datar, V., Dutta, D., Jha, V., Kumawat, H., Mohanty, A.K., Parmar, A., Roy, B., Sonika, G., Fritzsch, C., Grieser, S., Hergemöller, A.K., Hetz, B., Hüsken, N., Khoukaz, A., Wessels, J.P., Khosonthongkee, K., Kobdaj, C., Limphirat, A., Srisawad, P., Yan, Y., Barnyakov, M., Barnyakov, A.Yu., Beloborodov, K., Blinov, A.E., Blinov, V.E., Bobrovnikov, V.S., Kononov, S., Kravchenko, E.A., Kuyanov, I.A., Martin, K., Onuchin, A.P., Serednyakov, S., Sokolov, A., Tikhonov, Y., Atomssa, E., Kunne, R., Marchand, D., Ramstein, B., Van de Wiele, J., Wang, Y., Boca, G., Costanza, S., Genova, P., Montagna, P., Rotondi, A., Abramov, V., Belikov, N., Bukreeva, S., Davidenko, A., Derevschikov, A., Goncharenko, Y., Grishin, V., Kachanov, V., Kormilitsin, V., Levin, A., Melnik, Y., Minaev, N., Mochalov, V., Morozov, D., Nogach, L., Poslavskiy, S., Ryazantsev, A., Ryzhikov, S., Semenov, P., Shein, I., Uzunian, A., Vasiliev, A., Yakutin, A., Tomasi-Gustafsson, E., Roy, U., Yabsley, B., Belostotski, S., Gavrilov, G., Izotov, A., Manaenkov, S., Miklukho, O., Veretennikov, D., Zhdanov, A., Makonyi, K., Preston, M., Tegner, P., Wölbing, D., Bäck, T., Cederwall, B., Rai, A.K., Godre, S., Calvo, D., Coli, S., De Remigis, P., Filippi, A., Giraudo, G., Lusso, S., Mazza, G., Mignone, M., Rivetti, A., Wheadon, R., Balestra, F., Iazzi, F., Introzzi, R., Lavagno, A., Olave, J., Amoroso, A., Bussa, M.P., Busso, L., De Mori, F., Destefanis, M., Fava, L., Ferrero, L., Greco, M., Hu, J., Lavezzi, L., Maggiora, M., Maniscalco, G., Marcello, S., Sosio, S., Spataro, S., Birsa, R., Bradamante, F., Bressan, A., Martin, A., Calen, H., Ikegami Andersson, W., Johansson, T., Kupsc, A., Marciniewski, P., Papenbrock, M., Pettersson, J., Schönning, K., Wolke, M., Galnander, B., Diaz, J., Pothodi Chackara, V., Chlopik, A., Kesik, G., Melnychuk, D., Slowinski, B., Trzcinski, A., Wojciechowski, M., Wronka, S., Zwieglinski, B., Bühler, P., Marton, J., Steinschaden, D., Suzuki, K., Widmann, E., Zmeskal, J., Gerl, Jürgen, Kojouharov, Ivan, and Kojouharova, Jasmina

Published
2016
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8. Tests of FARICH prototype with precise photon position detection

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Basok, I.Yu., Blinov, V.E., Bobrovnikov, V.S., Borodenko, A.A., Buzykaev, A.R., Danilyuk, A.F., Degenhardt, C., Dorscheid, R., Finogeev, D.A., Frach, T., Gulevich, V.V., Karavicheva, T.L., Kasyanenko, P.V., Kononov, S.A., Korda, D.V., Kravchenko, E.A., Kudryavtsev, V.N., Kurepin, A.B., Kuyanov, I.A., Muelhens, O., Onuchin, A.P., Ovtin, I.V., Podgornov, N.A., Predein, A.Yu., Prisekin, V.G., Protsenko, R.S., Razin, V.I., Reshetin, A.I., Schulze, R., Shekhtman, L.I., Talyshev, A.A., Usenko, E.A., and Zwaans, B.

Published
2014
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9. The Super C-τ Factory particle identification system options

Author

Barnyakov A.Yu., Barnyakov M.Yu., Boborovnikov V.S, Buzykaev A.R., Bykov A.V., Danilyuk A.F., Katcin A.A., Kononov S.A., Korda D.V., Kravchenko E.A., Kuyanov I.A., Onuchin A.P., Ovtin I.V., Plekhov I.M., Podgornov N.A., Razuvaev G.P., Todyshev K.Yu., and Vorobiev V.S.

Subjects
Physics, QC1-999
Abstract

The Super C-τ (SCT) Factory at Novosibirsk is a project of new colliding beam experiment proposed in Budker Institute of Nuclear Physics. Electron-positron collider based on Crab-Waist technique for operation energy range 2–5 GeV in center of mass is suggested. The luminosity up to 1035cm−1s−1 (in 100 times higher than in operated today experiments in this energy region) is expected. To perform broad experimental program of the project successfully the excellent particle identification (PID) system is needed. A number of options are under consideration. Three of them are described in the paper: Focusing Aerogel RICH (FARICH) detector, threshold Cherenkov counters based on ASHIPH (Aerogel SHifter PHotomultiplier) technique with 6000 litres of aerogel of two refractive indexes and time-of-flight counters with TOP (Time of Propagation) approach with time resolution better than 30 ps. Comparison of PID capabilities with help of parametric simulation is given.

Published
2019
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10. Search for Lepton Flavor Violation in <math><mrow><mi>ϒ</mi><mo>(</mo><mn>3</mn><mi>S</mi><mo>)</mo><mo>→</mo><msup><mrow><mi>e</mi></mrow><mrow><mo>±</mo></mrow></msup><msup><mrow><mi>μ</mi></mrow><mrow><mo>∓</mo></mrow></msup></mrow></math>

Author

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, Gerald, Brown, D.N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Kozyrev, E.A., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu.I., Solodov, E.P., Todyshev, K.Yu., Lankford, A.J., Dey, B., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Panduro Vazquez, Vazquez, Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Li, Y., Lin, D.X., Middleton, S., Miyashita, T.S., Ongmongkolkul, P., Oyang, J., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Sun, L., Smith, J.G., Wagner, S.R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., De Sangro, Sangro, Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B.J., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, Diberder, Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Gabathuler, E., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, Lodovico, Sacco, R., Cowan, G., Banerjee, Sw., Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R., Barlow, R.J., Lafferty, G.D., Cenci, R., Jawahery, A., Roberts, D.A., Cowan, R., Robertson, S.H., Seddon, R.M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D.J., Taras, P., De Nardo, Nardo, Sciacca, C., Raven, G., Jessop, C.P., Losecco, J.M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G.R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M.A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J.J., Zani, L., Smith, A.J.S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F.F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M.R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R.C., Fulsom, B.G., Graham, M.T., Hast, C., Innes, W.R., Kim, P., Leith, D.W.G.S., Luitz, S., Macfarlane, D.B., Muller, D.R., Neal, H., Ratcliff, B.N., Roodman, A., Sullivan, M.K., Va'vra, J., Wisniewski, W.J., Purohit, M.V., Wilson, J.R., Randle-Conde, A., Sekula, S.J., Ahmed, H., Bellis, M., Burchat, P.R., Puccio, E.M.T., Alam, M.S., Ernst, J.A., Gorodeisky, R., Guttman, N., Peimer, D.R., Soffer, A., Spanier, S.M., Ritchie, J.L., Schwitters, R.F., Izen, J.M., Lou, X.C., Bianchi, F., De Mori, Mori, Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F.U., King, G.J., Kowalewski, R., Lueck, T., Nugent, I.M., Roney, J.M., Sobie, R.J., Tasneem, N., Gershon, T.J., Harrison, P.F., Latham, T.E., Prepost, R., and Wu, S.L.

Abstract

We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a b quark and b antiquark bound state. We look for the LFV decay ϒ(3S)→e±μ∓ in a sample of 118 million ϒ(3S) mesons from 27 fb−1 of data collected with the BABAR detector at the SLAC PEP-II e+e− collider operating with a 10.36 GeV center-of-mass energy. No evidence for a signal is found, and we set a limit on the branching fraction B[ϒ(3S)→e±μ∓]<3.6×10−7 at 90% C. L. This result can be interpreted as a limit ΛNP/gNP2>80 TeV on the energy scale ΛNP divided by the coupling-squared gNP2 of relevant new physics (NP).

Published
2022

11. Search for Lepton Flavor Violation in $\Upsilon (3S)\rightarrow e^{\pm}\mu^{\mp}$

Author

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D.N., Kolomensky, Yu.G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Kozyrev, E.A., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu.I., Solodov, E.P., Todyshev, K.Yu., Lankford, A.J., Dey, B., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Vazquez, W. Panduro, Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Li, Y., Lin, D.X., Middleton, S., Miyashita, T.S., Ongmongkolkul, P., Oyang, J., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Sun, L., Smith, J.G., Wagner, S.R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B.J., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Gabathuler, E., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R., Barlow, R.J., Lafferty, G.D., Cenci, R., Jawahery, A., Roberts, D.A., Cowan, R., Robertson, S.H., Seddon, R.M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D.J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C.P., Losecco, J.M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G.R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M.A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J.J., Zani, L., Smith, A.J.S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F.F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M.R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R.C., Fulsom, B.G., Graham, M.T., Hast, C., Innes, W.R., Kim, P., Leith, D.W.G.S., Luitz, S., Macfarlane, D.B., Muller, D.R., Neal, H., Ratcliff, B.N., Roodman, A., Sullivan, M.K., Va'Vra, J., Wisniewski, W.J., Purohit, M.V., Wilson, J.R., Randle-Conde, A., Sekula, S.J., Ahmed, H., Bellis, M., Burchat, P.R., Puccio, E.M.T., Alam, M.S., Ernst, J.A., Gorodeisky, R., Guttman, N., Peimer, D.R., Soffer, A., Spanier, S.M., Ritchie, J.L., Schwitters, R.F., Izen, J.M., Lou, X.C., Bianchi, F., de Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F.U., King, G.J., Kowalewski, R., Lueck, T., Nugent, I.M., Roney, J.M., Sobie, R.J., Tasneem, N., Gershon, T.J., Harrison, P.F., Latham, T.E., Prepost, R., Wu, S.L., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and BaBar

Subjects
14.40.Gx, 14.60.-z, branching ratio: upper limit, Upsilon(10355): rare decay, electron positron: annihilation, +positron+muon%22">Upsilon(10355) --> positron muon, 13.20.Gd, electron muon, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 11.30.Fs, Upsilon(10355): branching ratio, 11.30.j, 14.65.Fy, +electron+muon%2B%22">Upsilon(10355) --> electron muon+, 13.20.v, new physics: search for, lepton: flavor: violation, electron positron: colliding beams, 10.36 GeV-cms, SLAC PEP Stor, 14.60.Cd, 14.60.Ef, bound state, BaBar, Upsilon(10355): leptonic decay, 14.40.n, experimental results
Abstract

International audience; We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a b quark and b antiquark bound state. We look for the LFV decay ϒ(3S)→e±μ∓ in a sample of 118 million ϒ(3S) mesons from 27 fb-1 of data collected with the BABAR detector at the SLAC PEP-II e+e- collider operating with a 10.36 GeV center-of-mass energy. No evidence for a signal is found, and we set a limit on the branching fraction B[ϒ(3S)→e±μ∓]<3.6×10-7 at 90% C. L. This result can be interpreted as a limit ΛNP/gNP2>80 TeV on the energy scale ΛNP divided by the coupling-squared gNP2 of relevant new physics (NP).

Published
2022

12. Technical design report for the $\overline{P}$ANDA endcap disc DIRC*

Author

Davì, F., Erni, W., Krusche, B., Steinacher, M., Walford, N., Liu, H., Liu, Z., Liu, B., Shen, X., Wang, C., Zhao, J., Albrecht, M., Erlen, T., Feldbauer, F., Fink, M., Freudenreich, V., Fritsch, M., Heinsius, F.H., Held, T., Holtmann, T., Keshk, I., Koch, H., Kopf, B., Kuhlmann, M., Kümmel, M., Leiber, S., Musiol, P., Mustafa, A., Pelizäus, M., Pitka, A., Reicherz, G., Richter, M., Schnier, C., Schröder, T., Sersin, S., Sohl, L., Sowa, C., Steinke, M., Triffterer, T., Wiedner, U., Beck, R., Hammann, C., Hartmann, J., Ketzer, B., Kube, M., Rossbach, M., Schmidt, C., Schmitz, R., Thoma, U., Urban, M., Bianconi, A., Bragadireanu, M., Pantea, D., Czyzycki, W., Domagala, M., Filo, G., Jaworowski, J., Krawczyk, M., Lisowski, E., Lisowski, F., Michałk, M., Płażek, J., Korcyl, K., Kozela, A., Kulessa, P., Lebiedowicz, P., Pysz, K., Schäfer, W., Szczurek, A., Fiutowski, T., Idzik, M., Mindur, B., Swientek, K., Biernat, Jacek, Kamys, Bogusław, Kistryn, Stanisław, Korcyl, Grzegorz, Krzemień, Wojciech, Magiera, Andrzej, Moskal, Paweł, Przygoda, Witold, Rudy, Zbigniew, Salabura, Piotr, Smyrski, Jerzy, Strzempek, Paweł, Wrońska, Aleksandra, Augustin, I., Böhm, R., Lehmann, I., Nicmorus Marinescu, D., Schmitt, L., Varentsov, V., Al-Turany, M., Belias, A., Deppe, H., Divani Veis, N., Dzhygadlo, R., Flemming, H., Gerhardt, A., Götzen, K., Karabowicz, R., Kurilla, U., Lehmann, D., Löchner, S., Lühning, J., Lynen, U., Nakhoul, S., Orth, H., Peters, K., Saito, T., Schepers, G., Schmidt, C.J., Schwarz, C., Schwiening, J., Täschner, A., Traxler, M., Voss, B., Wieczorek, P., Wilms, A., Abazov, V., Alexeev, G., Arefiev, V.A., Astakhov, V., Barabanov, M.Y., Batyunya, B.V., Dodokhov, V.K., Efremov, A., Fechtchenko, A., Galoyan, A., Golovanov, G., Koshurnikov, E.K., Lobanov, Y.Y., Lobanov, V.I., Malyshev, V., Olshevskiy, A.G., Piskun, A.A., Samartsev, A., Sapozhnikov, M.G., Skachkov, N.B., Skachkova, A.N., Strokovsky, E.A., Tokmenin, V., Uzhinsky, V., Verkheev, A., Vodopianov, A., Zhuravlev, N.I., Zinchenko, A., Branford, D., Glazier, D., Watts, D., Böhm, M., Eyrich, W., Lehmann, A., Miehling, D., Pfaffinger, M., Stelter, S., Uhlig, F., Dobbs, S., Seth, K., Tomaradze, A., Xiao, T., Bettoni, D., Ali, A., Hamdi, A., Krebs, M., Nerling, F., Akishina, V., Gorbunov, S., Kisel, I., Kozlov, G., Pugach, M., Zyzak, M., Bianchi, N., Gianotti, P., Guaraldo, C., Lucherini, V., Bracco, G., Bodenschatz, S., Brinkmann, K.T., Di Pietro, V., Diehl, S., Dormenev, V., Düren, M., Etzelmüller, E., Föhl, K., Galuska, M., Geßler, T., Gutz, E., Hahn, C., Hayrapetyan, A., Kesselkaul, M., Kühn, W., Kuske, T., Lange, J.S., Liang, Y., Merle, O., Metag, V., Moritz, M., Nanova, M., Novotny, R., Quagli, T., Riccardi, A., Rieke, J., Schmidt, M., Schnell, R., Stenzel, H., Strickert, M., Thöring, U., Wasem, T., Wohlfahrt, B., Zaunick, H.G., Tomasi-Gustafsson, E., Ireland, D., Rosner, G., Seitz, B., Deepak, P.N., Kulkarni, A., Apostolou, A., Babai, M., Kavatsyuk, M., Loehner, H., Messchendorp, J., Schakel, P., Tiemens, M., van der Weele, J.C., Vejdani, S., Dutta, K., Kalita, K., Sohlbach, H., Bai, M., Bianchi, L., Büscher, M., Derichs, A., Dosdall, R., Erven, A., Fracassi, V., Gillitzer, A., Goldenbaum, F., Grunwald, D., Jokhovets, L., Kemmerling, G., Kleines, H., Lai, A., Lehrach, A., Mikirtychyants, M., Orfanitski, S., Prasuhn, D., Prencipe, E., Pütz, J., Ritman, J., Rosenthal, E., Schadmand, S., Sefzick, T., Serdyuk, V., Sterzenbach, G., Stockmanns, T., Wintz, P., Wüstner, P., Xu, H., Zhou, Y., Li, Z., Ma, X., Rigato, V., Isaksson, L., Achenbach, P., Aycock, A., Corell, O., Denig, A., Distler, M., Hoek, M., Lauth, W., Merkel, H., Müller, U., Pochodzalla, J., Sanchez, S., Schlimme, S., Sfienti, C., Thiel, M., Zambrana, M., Ahmadi, H., Ahmed, S., Bleser, S., Capozza, L., Cardinali, M., Dbeyssi, A., Ehret, A., Fröhlich, B., Grasemann, P., Haasler, S., Izard, D., Jorge, J., Khaneft, D., Klasen, R., Kliemt, R., Köhler, J., Leithoff, H.H., Lin, D., Maas, F., Maldaner, S., Michel, M., Mora Espí, M.C., Morales Morales, C., Motzko, C., Noll, O., Pflüger, S., Rodríguez Piñeiro, D., Steinen, M., Walaa, E., Wolff, S., Zimmermann, I., Fedorov, A., Korzhik, M., Missevitch, O., Balanutsa, P., Chernetsky, V., Demekhin, A., Dolgolenko, A., Fedorets, P., Gerasimov, A., Goryachev, V., Kirin, D.Y., Matveev, V.A., Stavinskiy, A.V., Balashoff, A., Boukharov, A., Malyshev, O., Marishev, I., Chandratre, V., Datar, V., Jha, V., Kumawat, H., Mohanty, A.K., Parmar, A., Rai, A.K., Roy, B., Sonika, G., Fritzsch, C., Grieser, S., Hergemöller, A.K., Hetz, B., Hüsken, N., Khoukaz, A., Wessels, J.P., Herold, C., Khosonthongkee, K., Kobdaj, C., Limphirat, A., Srisawad, P., Yan, Y., Blinov, A.E., Kononov, S., Kravchenko, E.A., Antokhin, E., Barnyakov, M., Barnyakov, A.Y., Beloborodov, K., Blinov, V.E., Bobrovnikov, V.S., Kuyanov, I.A., Onuchin, A.P., Pivovarov, S., Pyata, E., Serednyakov, S., Tikhonov, Y., Kunne, R., Marchand, D., Ramstein, B., van de Wiele, J., Wang, Y., Boca, G., Burian, V., Finger, M., Nikolovova, A., Pesek, M., Peskova, M., Pfeffer, M., Prochazka, I., Slunecka, M., Gallus, P., Jary, V., Novy, J., Tomasek, M., Virius, M., Vrba, V., Abramov, V., Belikov, N., Bukreeva, S., Davidenko, A., Derevschikov, A., Goncharenko, Y., Grishin, V., Kachanov, V., Kormilitsin, V., Levin, A., Melnik, Y., Minaev, N., Mochalov, V., Morozov, D., Nogach, L., Poslavskiy, S., Ryazantsev, A., Ryzhikov, S., Semenov, P., Shein, I., Uzunian, A., Vasiliev, A., Yakutin, A., Roy, U., Yabsley, B., Belostotski, S., Gavrilov, G., Izotov, A., Manaenkov, S., Miklukho, O., Veretennikov, D., Zhdanov, A., Bäck, T., Cederwall, B., Makonyi, K., Preston, M., Tegner, P.E., Wölbing, D., Godre, S., Bussa, M.P., Marcello, S., Spataro, S., Iazzi, F., Introzzi, R., Lavagno, A., Calvo, D., De Remigis, P., Filippi, A., Mazza, G., Rivetti, A., Wheadon, R., Martin, A., Calen, H., Ikegami Andersson, W., Johansson, T., Kupsc, A., Marciniewski, P., Papenbrock, M., Pettersson, J., Regina, J., Schönning, K., Wolke, M., Diaz, J., Pothodi Chackara, V., Chlopik, A., Kesik, G., Melnychuk, D., Slowinski, B., Trzcinski, A., Wojciechowski, M., Wronka, S., Zwieglinski, B., Bühler, P., Marton, J., Steinschaden, D., Suzuki, K., Widmann, E., Zimmermann, S., and Zmeskal, J.

Subjects
PANDA, technical design report, particle identification, Cherenkov detector
Published
2022

13. Light meson spectroscopy from Dalitz plot analyses of $\eta_c$ decays to $\eta' K^+ K^-$, $\eta' \pi^+ \pi^-$, and $\eta \pi^+ \pi^-$ produced in two-photon interactions

Author

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D.N., Kolomensky, Yu.G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Kozyrev, E.A., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu.I., Solodov, E.P., Todyshev, K.Yu., Lankford, A.J., Dey, B., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Vazquez, W. Panduro, Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Li, Y., Lin, D.X., Miyashita, T.S., Ongmongkolkul, P., Oyang, J., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Sun, L., Smith, J.G., Wagner, S.R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B.J., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Gabathuler, E., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R., Barlow, R.J., Lafferty, G.D., Cenci, R., Jawahery, A., Roberts, D.A., Cowan, R., Robertson, S.H., Seddon, R.M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D.J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C.P., Losecco, J.M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G.R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M.A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J.J., Zani, L., Smith, A.J.S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F.F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M.R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R.C., Fulsom, B.G., Graham, M.T., Hast, C., Innes, W.R., Kim, P., Leith, D.W.G.S., Luitz, S., Macfarlane, D.B., Muller, D.R., Neal, H., Ratcliff, B.N., Roodman, A., Sullivan, M.K., Va'Vra, J., Wisniewski, W.J., Purohit, M.V., Wilson, J.R., Randle-Conde, A., Sekula, S.J., Ahmed, H., Bellis, M., Burchat, P.R., Puccio, E.M.T., Alam, M.S., Ernst, J.A., Gorodeisky, R., Guttman, N., Peimer, D.R., Soffer, A., Spanier, S.M., Ritchie, J.L., Schwitters, R.F., Izen, J.M., Lou, X.C., Bianchi, F., de Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F.U., King, G.J., Kowalewski, R., Lueck, T., Nugent, I.M., Roney, J.M., Sobie, R.J., Tasneem, N., Gershon, T.J., Harrison, P.F., Latham, T.E., Prepost, R., Wu, S.L., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, BaBar, Lees J.P., Poireau V., Tisserand V., Grauges E., Palano A., Eigen G., Brown D.N., Kolomensky YU.G., Fritsch M., Koch H., Schroeder T., Cheaib R., Hearty C., Mattison T.S., McKenna J.A., So R.Y., Blinov V.E., Buzykaev A.R., Druzhinin V.P., Golubev V.B., Kozyrev E.A., Kravchenko E.A., Onuchin A.P., Serednyakov S.I., Skovpen YU.I., Solodov E.P., Todyshev K.YU., Lankford A.J., Dey B., Gary J.W., Long O., Eisner A.M., Lockman W.S., Panduro Vazquez W., Chao D.S., Cheng C.H., Echenard B., Flood K.T., Hitlin D.G., Kim J., Li Y., Lin D.X., Miyashita T.S., Ongmongkolkul P., Oyang J., Porter F.C., Rohrken M., Huard Z., Meadows B.T., Pushpawela B.G., Sokoloff M.D., Sun L., Smith J.G., Wagner S.R., Bernard D., Verderi M., Bettoni D., Bozzi C., Calabrese R., Cibinetto G., Fioravanti E., Garzia I., Luppi E., Santoro V., Calcaterra A., de Sangro R., Finocchiaro G., Martellotti S., Patteri P., Peruzzi I.M., Piccolo M., Rotondo M., Zallo A., Passaggio S., Patrignani C., Shuve B.J., Lacker H.M., Bhuyan B., Mallik U., Chen C., Cochran J., Prell S., Gritsan A.V., Arnaud N., Davier M., Le Diberder F., Lutz A.M., Wormser G., Lange D.J., Wright D.M., Coleman J.P., Gabathuler E., Hutchcroft D.E., Payne D.J., Touramanis C., Bevan A.J., Di Lodovico F., Sacco R., Cowan G., Banerjee SW., Davis C.L., Denig A.G., Gradl W., Griessinger K., Hafner A., Schubert K.R., Barlow R.J., Lafferty G.D., Cenci R., Jawahery A., Roberts D.A., Cowan R., Robertson S.H., Seddon R.M., Neri N., Palombo F., Cremaldi L., Godang R., Summers D.J., Taras P., De Nardo G., Sciacca C., Raven G., Jessop C.P., LoSecco J.M., Honscheid K., Kass R., Gaz A., Margoni M., Posocco M., Simi G., Simonetto F., Stroili R., Akar S., Ben-Haim E., Bomben M., Bonneaud G.R., Calderini G., Chauveau J., Marchiori G., Ocariz J., Biasini M., Manoni E., Rossi A., Batignani G., Bettarini S., Carpinelli M., Casarosa G., Chrzaszcz M., Forti F., Giorgi M.A., Lusiani A., Oberhof B., Paoloni E., Rama M., Rizzo G., Walsh J.J., Zani L., Smith A.J.S., Anulli F., Faccini R., Ferrarotto F., Ferroni F., Pilloni A., Piredda G., Bunger C., Dittrich S., Grunberg O., Hess M., Leddig T., Voss C., Waldi R., Adye T., Wilson F.F., Emery S., Vasseur G., Aston D., Cartaro C., Convery M.R., Dorfan J., Dunwoodie W., Ebert M., Field R.C., Fulsom B.G., Graham M.T., Hast C., Innes W.R., Kim P., Leith D.W.G.S., Luitz S., MacFarlane D.B., Muller D.R., Neal H., Ratcliff B.N., Roodman A., Sullivan M.K., Va'vra J., Wisniewski W.J., Purohit M.V., Wilson J.R., Randle-Conde A., Sekula S.J., Ahmed H., Bellis M., Burchat P.R., Puccio E.M.T., Alam M.S., Ernst J.A., Gorodeisky R., Guttman N., Peimer D.R., Soffer A., Spanier S.M., Ritchie J.L., Schwitters R.F., Izen J.M., Lou X.C., Bianchi F., De Mori F., Filippi A., Gamba D., Lanceri L., Vitale L., Martinez-Vidal F., Oyanguren A., Albert J., Beaulieu A., Bernlochner F.U., King G.J., Kowalewski R., Lueck T., Nugent I.M., Roney J.M., Sobie R.J., Tasneem N., Gershon T.J., Harrison P.F., Latham T.E., Prepost R., Wu S.L., Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, YU. G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T. S., Mckenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, YU. I., Solodov, E. P., Todyshev, K. YU., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Panduro Vazquez, W., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Lin, D. X., Miyashita, T. S., Ongmongkolkul, P., Oyang, J., Porter, F. C., Rohrken, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B. J., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C. P., Losecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bunger, C., Dittrich, S., Grunberg, O., Hess, M., Leddig, T., Voss, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., Macfarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va'Vra, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Ahmed, H., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., Wu, S. L., Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
K*0(1430), J/psi(3100): radiative decay, eta(958), +eta%28958%29+K%2B+K%22">eta/c(3590) --> eta(958) K+ K, Dalitz plot, interference, electron positron: annihilation, eta, f0(1710), +eta%28958%29+pi%2B+pi%22">eta/c(3590) --> eta(958) pi+ pi, High Energy Physics - Experiment, width: ratio: measured, eta/c(3590): width, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], f0(2100), HEP, BaBar, eta/c(3590): branching ratio, Nuclear Experiment, glueball: scalar, mass spectrum: (pi K), exchange: two-photon, High Energy Physics::Phenomenology, +eta+pi%2B+pi%22">eta/c(3590) --> eta pi+ pi, mass spectrum: (eta(958) K), scalar meson, electron positron: colliding beams, SLAC PEP Stor, +eta+pi%22">f0(1710) --> eta pi, BaBar, meson: hadron spectroscopy, eta/c(3590): hadronic decay, High Energy Physics::Experiment, experimental results
Abstract

We study the processes $\gamma \gamma \to \eta_c \to \eta' K^+ K^-$, $\eta' \pi^+ \pi^-$, and $\eta \pi^+ \pi^-$ using a data sample of 519 $fb^{-1}$ recorded with the BaBar detector operating at the SLAC PEP-II asymmetric-energy $e^+e^-$ collider at center-of-mass energies at and near the $\Upsilon(nS)$ ($n = 2,3,4$) resonances. This is the first observation of the decay $\eta_c \to \eta' K^+ K^-$ and we measure the branching fraction $\Gamma(\eta_c \to \eta' K^+ K^-)/(\Gamma(\eta_c \to \eta' \pi^+ \pi^-)=0.644\pm 0.039_{\rm stat}\pm 0.032_{\rm sys}$. Significant interference is observed between $\gamma \gamma \to \eta_c\to \eta \pi^+ \pi^-$ and the non-resonant two-photon process $\gamma \gamma \to \eta \pi^+ \pi^-$. A Dalitz plot analysis is performed of $\eta_c$ decays to $\eta' K^+ K^-$, $\eta' \pi^+ \pi^-$, and $\eta \pi^+ \pi^-$. Combined with our previous analysis of $\eta_c \to K \bar K \pi$, we measure the $K^*_0(1430)$ parameters and the ratio between its $\eta' K$ and $\pi K$ couplings. The decay $\eta_c \to \eta' \pi^+ \pi^-$ is dominated by the $f_0(2100)$ resonance, also observed in $J/\psi$ radiative decays. A new $a_0(1700) \to \eta \pi$ resonance is observed in the $\eta_c \to \eta \pi^+ \pi^-$ channel. We also compare $\eta_c$ decays to $\eta$ and $\eta'$ final states in association with scalar mesons as they relate to the identification of the scalar glueball., Comment: 25 pages, 18 figures

Published
2021

16. Tau mass measurement at KEDR

Author

Shamov, A.G., 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., Karnaev, S.E., Karpov, G.V., Karpov, S.V., Kiselev, V.A., Kononov, S.A., Kozlova, T.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., Petrosyan, S.S., 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., 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., and Zhuravlev, A.N.

Published
2009
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18. Photomultiplier tubes with three MCPs

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Barutkin, V.V., Bobrovnikov, V.S., Buzykaev, A.R., Inami, K., Kononov, S.A., Kravchenko, E.A., Kurimoto, K., Mori, T., Ohshima, T., Onuchin, A.P., Tsigankov, D.A., and Yurikusa, Y.

Published
2009
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19. High density aerogel for ASHIPH SND—test results

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Beloborodov, K.I., Bobrovnikov, V.S., Buzykaev, A.R., Danilyuk, A.F., Golubev, V.B., Kirillov, V.L., Kononov, S.A., Kravchenko, E.A., Onuchin, A.P., Martin, K.A., Serednyakov, S.I., and Vesenev, V.M.

Published
2009
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22. Improved measurement of the Cabibbo-Kobayashi-Maskawa angle α using B0(B)→p+p- decays

Author

Aubert, Bernard, Abe, T., Abrams, G. S., Adye, T., Ahmed, M., Ahmed, S., Alam, M. S., Albert, J., Aleksan, R., Allen, M.T., Allison, John, Allmendinger, T., Altenburg, D., Andreassen, R., Andreotti, M., Angelini, C., Anulli, F., Arnaud, N., Aston, D., Azzolini, V., Baak, M., Back, J.J., Bailey, S., Baldini-Ferroli, R., Band, H.R., Banerjee, Sw., Barate, R., Bard, D.J., Barlow, N.R., Barlow, R.J., Barrett, M., Bartoldus, R., Batignani, G., Bauer, J.M., Beck, T.W., Behera, P.K., Bellini, F., Benayoun, M., Benelli, G., Berger, N., Berger-Hryn'ova, Tetiana, Bernard, Denis, 1, Berryhill, J.W., Best, D., Bettarini, S., Bettoni, D., Bevan, A.J., Bhimji, W., Bhuyan, B., Bianchi, F., Biasini, M., Biesiada, Jed, Blanc, F., Blaylock, G., Blinov, A.E., Blinov, V.E., Bloom, P., Bomben, M., Bona, Marcella, Bondioli, M., Bonneaud, G.R., Borgland, A.W., Bosisio, L., Boutigny, D., Bowerman, D.A., Boyarski, A.M., Boyd, J.T., Bozzi, C., Brandenburg, G., Brandt, T., Brau, J., Breon, A.B., Briand, H., Brose, J., Brown, C.L., Brown, C.M., Brown, David Nathan, Brown, David Norvil, Bruinsma, M., Brunet, S., Bucci, F., Buchanan, C., Buchmueller, O.L., Bugg, W., Bukin, A.D., Bulten, H., Burchat, P.R., Burke, J.P., Button-Shafer, Janice, Buzzo, A., Cahn, R.N., Calabrese, R., Calcaterra, A., Calderini, G., Campagnari, C., Capra, R., Carpinelli, M., Cartaro, C., Cavallo, N., Cavoto, G., Chaisanguanthum, K.S., Chao, M., Charles, E., Charles, M.J., Chauveau, J., Chavez, C.A., Chen, Anping., Chen, C., Chen, E., Chen, J.C., Chen, S., Chen, X., Cheng, B., Cheng, C.H., Chevalier, N., Christ, S., Cibinetto, G., Clark, P.J., Claus, R., Cochran, J., Colecchia, F., Coleman, J.P., Contri, R., Convery, M.R., Cormack, C.M., Cossutti, F., Cote, D., Cottingham, W.N., Couderc, F., Covarelli, R., Cowan, G., Cowan, R., Crawley, H.B., Cremaldi, L., Cristinziani, M., Cuhadar-Donszelmann, T., Cunha, A., D'Orazio, A., Dahmes, B., Dallapiccola, C., Danielson, N., Dasu, S., Datta, Mousumi, Dauncey, Paul D., David, P., Davier, M., Davis, C.L., Day, C.T., De Groot, N., De Nardo, G., Del Buono, L., Della Ricca, G., Di Lodovico, F., Di Marco, E., Dickopp, M., Dingfelder, J.C., Dittongo, S., Dong, D., Dorfan, J., Dorigo, A., Druzhinin, V.P., Dubitzky, R.S., Dubois-Felsmann, G.P., Dujmic, D., Dunwoodie, W., Dvoretskii, A., Eckhart, E.A., Eckmann, R., Edwards, A.J., Egede, U., Eichenbaum, A.M., Eigen, G., Eisner, A.M., Elmer, P., Emery, S., Ernst, J.A., Eschenburg, V., Eyges, V., Fabozzi, F., Faccini, R., Fan, S., Farbin, A., Feltresi, E., Ferrarotto, F., Ferroni, F., Field, R.C., Finocchiaro, G., Flacco, C.J., Flack, R.L., Flaecher, H.U., Flood, K.T., Ford, K.E., Ford, William T., Forster, I.J., Forti, F., Fortin, D., Foulkes, S.D., Franek, B., Frey, R., Fritsch, M., Fry, J.R., Gabathuler, E., Gaidot, A., Gaillard, J.R., Galeazzi, F., Gallo, F., Gamba, D., Gamet, R., Gan, K.K., Ganzhur, S.F., Gary, J.W., Gaspero, Mario, Gatto, C., George, K.A., Gill, M.S., Giorgi, M.A., Giraud, P.F., Giroux, X., Gladney, L., Glanzman, T., Godang, R., Goetzen, K., Golubev, V.B., Gopal, G.P., Gough Eschrich, Ivo M., Gowdy, S.J., Gradl, W., Graham, M., Grancagnolo, S., Grauges Pous, Eugeni, Graziani, G., Green, M.G., Greene, M.G., Grenier, Gerald Jean, Grenier, P., Gritsan, A.V., Grosdidier, G., Groysman, Y., Guo, Q.H., Hadavand, H.K., Hadig, T., Haire, M., Halyo, V., Hamano, K., Hamel de Monchenault, G., Hamon, O., Harrison, P.F., Harrison, T.J., Hart, A.J., Hartfiel, Brandon L., Harton, J.L., Hast, C., Hauke, A., Hawkes, C.M., Hearty, C., Held, T., Hertzbach, Stanley S., Heusch, C.A., Hill, E.J., Hitlin, D.G., Hocker, Andreas, Hodgkinson, Mark C., Hollar, J.J., Hong, T.M., Honscheid, K., Hufnagel, D., Hulsbergen, W.D., Hutchcroft, D.E., Igonkina, O., Innes, Walter R., Ivanchenko, V.N., Izen, J.M., Jackson, P.D., Jackson, P.S., Jacobsen, R.G., Jawahery, A., Jayatilleke, S., Jessop, C.P., John, M.J.J., Johnson, J.R., Judd, D., Kadel, R.W., Kadyk, J., Kagan, H., Karyotakis, Y., Kass, R., Kazuhito, S., Kelly, M.P., Kelsey, M.H., Kerth, L.T., Khan, A., Kim, H., Kim, P., Kirkby, David P., Kitayama, I., Klose, V., Knecht, N.S., Koch, H., Kocian, M.L., Koeneke, K., Kofler, R., Kolomensky, Yu.G., Koptchev, V.B., Kovalskyi, D., Kowalewski, Robert V., Kozanecki, W., Kravchenko, E.A., Krishnamurthy, M., Kroeger, R., Kroseberg, J., Kukartsev, G., Kutter, P.E., Kyberd, P., Lacker, H.M., Lae, C.K., Lafferty, G.D., Lanceri, L., Lange, D.J., Langenegger, Urs, Lankford, A.J., Latham, T.E., Lau, Y.P., Lazzaro, A., Le Diberder, F., Lees, J.P., Legendre, M., Leith, D.W.G.S., Lepeltier, V., Leruste, Ph., Lewandowski, B., Li Gioi, L., Li, H., Libby, J., Lillard, V., Lista, L., Liu, R., Lo Vetere, M., LoSecco, J.M., Lockman, W.S., Lombardo, V., London, G.W., Long, O., Lou, X.C., Lu, A., Lu, C., Lu, M., Luitz, S., Luppi, E., Lusiani, A., Luth, V., Lutz, A.M., Lynch, G., Lynch, H.L., MacFarlane, D.B., Macri, M., Majewski, S.A., Malcles, J., Mallik, U., Maly, E., Mancinelli, G., Mandelkern, M., Marchiori, G., Margoni, M., Marks, J., Marsiske, H., Martinez-Vidal, F., Mattison, T.S., Mayer, B., Mazur, M.A., Mazzoni, M.A., McKenna, J.A., McMahon, T.R., Meadows, B.T., Mellado, B., Messner, R., Meyer, W.T., Mihalyi, A., Mir, L.M., Mohanty, G.B., Mohapatra, A.K., Mommsen, R.K., Monge, M.R., Monorchio, D., Moore, T.B., Morandin, M., Morgan, S.E., Morganti, M., Morganti, Silvio, Morii, M., Morton, G.W., Muheim, F., Muller, D.R., Naisbit, M.T., Narsky, Ilya V., Nash, J.A., Nauenberg, U., Neal, H., Negrini, M., Neri, N., Nesom, G., Nicholson, H., Nikolich, M.B., Nogowski, R., O'Grady, C.P., Ocariz, J., Oddone, P.J., Ofte, I., Olaiya, E.O., Olivas, A., Olsen, J., Onuchin, A.P., Orimoto, T.J., Otto, S., Ozcan, V.E., Paar, H.P., Paick, K., Palano, A., Palombo, F., Pan, Y., Panetta, J., Panvini, R.S., Paoloni, E., Paolucci, P., Pappagallo, M., Parry, R.J., Passaggio, S., Patel, P.M., Patrignani, C., Patteri, P., Payne, D.J., Pelizaeus, M., Perazzo, A., Perl, M., Peruzzi, I.M., Peters, K., Petersen, B.A., Petersen, T.C., Petzold, A., Piatenko, T., Piccolo, D., Piccolo, M., Piemontese, L., Pierini, Maurizio, Pioppi, M., Piredda, G., Plaszczynski, S., Playfer, S., Poireau, V., Polci, F., Pompili, A., Poropat, P., Porter, F.C., Posocco, M., Potter, C.T., Prell, S., Prepost, R., Pripstein, M., Pulliam, T., Purohit, M.V., Qi, N.D., Rahatlou, S., Rahimi, A.M., Rama, M., Rankin, P., Ratcliff, B.N., Raven, G., Reidy, J., Ricciardi, S., Richman, J.D., Ritchie, J.L., Rizzo, G., Roat, C., Roberts, D.A., Robertson, S.H., Robutti, E., Rodier, S., Roe, N.A., Roethel, W., Ronan, M.T., Roney, J.M., Rong, G., Roodman, A., Roos, L., Rosenberg, E.I., Rotondo, M., Roudeau, P., Rubin, A.E., Ruddick, W.O., Ryd, A., Saeed, M.A., Safai Tehrani, F., Saleem, M., Salnikov, A.A., Salvatore, F., Samuel, A., Sanders, D.A., Santroni, A., Saremi, S., Sarti, A., Satpathy, A., Schalk, T., Schenk, S., Schindler, R.H., Schott, G., Schrenk, S., Schroder, H., Schroeder, T., Schubert, J., Schubert, Klaus R., Schumm, B.A., Schune, M.H., Schwiening, J., Schwierz, R., Schwitters, R.F., Sciacca, C., Sciolla, G., Seiden, A., Sekula, S.J., Serednyakov, S.I., Sharma, V., Shen, B.C., Simani, M.C., Simi, G., Simonetto, F., Sinev, N.B., Skovpen, Yu.I., Smith, A.J.S., Smith, James G., Snoek, H.L., Snyder, A., Sobie, R.J., Soffer, A., Soha, A., Sokoloff, M.D., Solodov, E.P., Spaan, B., Spanier, S.M., Spradlin, Patrick Michael, Staengle, H., Steinke, M., Stelzer, J., Stocchi, A., Stoker, D.P., Stroili, R., Strom, David M., Strube, J., Stugu, B., Su, D., Sullivan, M.K., Summers, D.J., Sundermann, J.E., Tan, P., Taras, P., Taylor, F., Taylor, G.P., Telnov, A.V., Teodorescu, L., Ter-Antonyan, R., Therin, G., Thiebaux, Ch., Thiessen, D., Thompson, J.M., Tisserand, V., Toki, W.H., Torrence, E., Tosi, S., Touramanis, C., Ulmer, K.A., Uwer, U., Va'vra, J., Vasileiadis, G., Vasseur, G., Verderi, M., Verkerke, W., Viaud, B., Vitale, L., Voci, C., Voena, C., Vuagnin, G., Wagner, G., Wagner, S.R., Wagoner, D.E., Waldi, R., Walsh, J., Wang, K., Wang, P., Wappler, F.R., Watson, A.T., Weaver, M., Weidemann, A.W., Weinstein, A.J.R., Wenzel, W.A., Wilden, L., Williams, D.C., Williams, J.C., Willocq, S., Wilson, F.F., Wilson, J.R., Wilson, M.G., Wilson, R.J., Wisniewski, William J., Wittgen, M., Won, E., Wong, Q.K., Wormser, G., Wright, D.H., Wright, D.M., Wu, J., Wu, S.L., Xie, Y., Yamamoto, R.K., Yang, S., Yarritu, A.K., Ye, S., Yeche, Ch., Yi, J., Young, C.C., Yu, Z., Yumiceva, F.X., Yushkov, A.N., Zallo, A., Zeng, Q., Zghiche, A., Zhang, J., Zhang, L., Zhao, H.W., Zhu, Y.S., Zito, M., de Sangro, R., de la Vaissiere, Ch., del Re, D., von Wimmersperg-Toeller, J.H., BaBar Collaboration, and American Physical Society

Subjects
Upsilon(10570), Pair production, Electroproduction, CKM matrix, Isospin, Colliding beams, Hadronic decay, Annihilation, Electron positron
Abstract

We present results from an analysis of B0(B¯¯¯0)→ρ+ρ− using 232×106 Υ(4S)→BB¯¯¯ decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We measure the longitudinal polarization fraction fL=0.978±0.014(stat)+0.021−0.029(syst) and the CP-violating parameters SL=−0.33±0.24(stat)+0.08−0.14(syst) and CL=−0.03±0.18(stat)±0.09(syst). Using an isospin analysis of B→ρρ decays, we determine the unitarity triangle parameter α. The solution compatible with the standard model is α=(100±13)°.

Published
2021

23. Study of the reactions $e^+e^-\to\pi^+\pi^-\pi^0\pi^0\pi^0\pi^0$ and $\pi^+\pi^-\pi^0\pi^0\pi^0\eta$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Author

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D.N., Kolomensky, Yu G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty Ab, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin Ab, V.P., Golubev Ab, V.B., Kozyrev Ab, E.A., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen Ab, Yu I., Solodov Ab, E.P., Todyshev, K. Yu, Lankford, A.J., Dey, B., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Panduro Vazquez, W., Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Li, Y., Lin, D.X., Middleton, S., Miyashita, T.S., Ongmongkolkul, P., Oyang, J., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Sun, L., Smith, J.G., Wagner, S.R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B.J., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Gabathuler, E., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R., Barlow, R.J., Lafferty, G.D., Cenci, R., Jawahery, A., Roberts, D.A., Cowan, R., Robertson, S.H., Seddon, R.M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D.J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C.P., Losecco, J.M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G.R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M.A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J.J., Zani, L., Smith, A.J.S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F.F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M.R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R.C., Fulsom, B.G., Graham, M.T., Hast, C., Innes, W.R., Kim, P., Leith, D.W.G.S., Luitz, S., Macfarlane, D.B., Muller, D.R., Neal, H., Ratcliff, B.N., Roodman, A., Sullivan, M.K., Va'Vra, J., Wisniewski, W.J., Purohit, M.V., Wilson, J.R., Randle-Conde, A., Sekula, S.J., Ahmed, H., Tasneem, N., Bellis, M., Burchat, P.R., Puccio, E.M.T., Alam, M.S., Ernst, J.A., Gorodeisky, R., Guttman, N., Peimer, D.R., Soffer, A., Spanier, S.M., Ritchie, J.L., Schwitters, R.F., Izen, J.M., Lou, X.C., Bianchi, F., de Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F.U., King, G.J., Kowalewski, R., Lueck, T., Miller, C., Nugent, I.M., Roney, J.M., Sobie, R.J., Gershon, T.J., Harrison, P.F., Latham, T.E., Prepost, R., Sokoloff, L., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, BaBar, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
J/psi(3100), accelerator, pi: multiple production, omega(783), photon, electron positron: colliding beams, +pi%2B+pi-+3pi0+eta+photon%22">electron positron --> pi+ pi- 3pi0 eta photon, electron positron: annihilation, eta, SLAC PEP Stor, +pi%2B+pi-+4pi0+photon%22">electron positron --> pi+ pi- 4pi0 photon, High Energy Physics - Experiment, mass spectrum, intermediate state, mass: hadronic, branching ratio: measured, final state: hadronic, 4.5 GeV-cms, BaBar, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], radiation: initial-state interaction, initial state, psi(3685), channel cross section: measured, experimental results
Abstract

We study the processes $e^+e^-\to\pi^+\pi^-\pi^0\pi^0\pi^0\pi^0\gamma$ and $e^+e^-\to\pi^+\pi^-\pi^0\pi^0\pi^0\eta\gamma$ in which an energetic photon is radiated from the initial state. The data were collected with the BaBar detector at the SLAC National Accelerator Laboratory. About 7300 and 870 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469~$fb^{-1}$. The invariant mass of the hadronic final state defines the effective $e^+e^-$ center-of-mass energy. The center-of-mass energies range from threshold to 4.5~GeV. From the mass spectra, the first ever measurements of the $e^+e^-\to\pi^+\pi^-\pi^0\pi^0\pi^0\pi^0$ and the $e^+e^-\to\pi^+\pi^-\pi^0\pi^0\pi^0\eta$ cross sections are performed. The contributions from $\omega\pi^0\pi^0\pi^0$, $\eta\pi^+\pi^-\pi^0$, $\omega\eta$, and other intermediate states are presented. We observe the $J/\psi$ and $\psi(2S)$ in most of these final states and measure the corresponding branching fractions, many of them for the first time., Comment: 20 pages, 27 figures

Published
2021

24. Study of the reactions $e^+e^-\to2(\pi^+\pi^-)\pi^0\pi^0\pi^0$ and $e^+e^-\to2(\pi^+\pi^-)\pi^0\pi^0\eta$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Author

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D.N., Kolomensky, Yu.G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty Ab, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin Ab, V.P., Golubev Ab, V.B., Kozyrev Ab, E.A., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen Ab, Yu I., Solodov Ab, E.P., Todyshev, K.Yu., Lankford, A.J., Dey, B., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Panduro Vazquez, W., Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Li, Y., Lin, D.X., Miyashita, T.S., Ongmongkolkul, P., Oyang, J., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B.J., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Gabathuler, E., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R., Robertson, S.H., Seddon, R.M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D.J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C.P., Losecco, J.M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G.R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M.A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J.J., Zani, L., Smith, A.J.S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F.F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M.R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R.C., Fulsom, B.G., Graham, M.T., Hast, C., Innes, W.R., Kim, P., Leith, D.W.G.S., Luitz, S., Macfarlane, D.B., Muller, D.R., Neal, H., Ratcliff, B.N., Roodman, A., Sullivan, M.K., Va'Vra, J., Wisniewski, W.J., Purohit, M.V., Wilson, J.R., Randle-Conde, A., Sekula, S.J., Ahmed, H., Bellis, M., Burchat, P.R., Puccio, E.M.T., Alam, M.S., Ernst, J.A., Gorodeisky, R., Guttman, N., Peimer, D.R., Soffer, A., Spanier, S.M., Ritchie, J.L., Schwitters, R.F., Izen, J.M., Lou, X.C., Bianchi, F., de Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F.U., King, G.J., Kowalewski, R., Lueck, T., Nugent, I.M., Roney, J.M., Sobie, R.J., Tasneem, N., Gershon, T.J., Harrison, P.F., Latham, T.E., Prepost, R., Sokoloff, L., Sun, L., Smith, J.G., Wagner, S.R., Bernard, D., Verderi, M., Barlow, R.J., Lafferty, G.D., Cenci, R., Jawahery, A., Roberts, D.A., Cowan, R., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), BaBar, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
J/psi(3100), M070.201, rho(770), M071.328, M071.327, M070.9, electron positron: annihilation, M071.329, High Energy Physics - Experiment, M070.1, M071.1, mass: hadronic, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics Experiments, radiation: initial-state interaction, +2pi%2B+2pi-+2pi0+eta%22">electron positron --> 2pi+ 2pi- 2pi0 eta, initial state, psi(3685), M070.411, omega(783), M070.415, M070.359, photon, M070.358, M070.412, electron positron: colliding beams, SLAC PEP Stor, intermediate state, final state: hadronic, BaBar, M070.418, branching ratio, M070.416, +2pi%2B+2pi-+3pi0+photon%22">electron positron --> 2pi+ 2pi- 3pi0 photon, experimental results, M071.251
Abstract

We study the processes $e^+e^-\to 2(\pi^+\pi^-)\pi^0\pi^0\pi^0\gamma$ and $2(\pi^+\pi^-)\pi^0\pi^0\eta\gamma$ in which an energetic photon is radiated from the initial state. The data were collected with the \babar~ detector at SLAC. About 14\,000 and 4700 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469 fb^{-1}. The invariant mass of the hadronic final state defines the effective \epem center-of-mass energy. The center-of-mass energies range from threshold to 4.5 GeV. From the mass spectra, the first ever measurements of the $e^+e^-\to 2(\pi^+\pi^-)\pi^0\pi^0\pi^0$ and the $e^+e^-\to2(\pi^+\pi^-)\pi^0\pi^0\eta$ cross sections are performed. The contributions from $\omega\pi^+\pi^-\pi^0\pi^0$, $\eta2(\pi^+\pi^-)$, and other intermediate states are presented. We observe the $J/\psi$ and $\psi(2S)$ in most of these final states and measure the corresponding branching fractions, many of them for the first time., Comment: 22 pages, 31 pdf figures, submitted to PRD

Published
2021

26. Results on [formula omitted], [formula omitted], [formula omitted] from KEDR

Author

Baldin, E.M., Anashin, V.V., Aulchenko, V.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.B., Bobrovnikov, V.S., Bogomyagkov, A.V., Bondar, A.E., Bondarev, D.V., Buzykaev, A.R., Eidelman, S.I., Glukhovchenko, Yu.M., Groshev, V.R., Gulevich, V.V., Karnaev, S.E., Karpov, G.V., Karpov, S.V., Kiselev, V.A., Kononov, S.A., Kozlova, T.A., Kotov, K.Yu., Kravchenko, E.A., Kremyanskaya, E.V., 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., Petrosyan, S.S., 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., 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., and Zhuravlev, A.N.

Published
2008
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27. Tau mass measurement at KEDR

Author

Shamov, A.G., 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.B., Bobrovnikov, V.S., Bogomyagkov, A.V., Bondar, A.E., Bondarev, D.V., Buzykaev, A.R., Eidelman, S.I., Glukhovchenko, Yu.M., Gulevich, V.V., Karnaev, S.E., Karpov, G.V., Karpov, S.V., Kiselev, V.A., Kononov, S.A., Kozlova, T.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., Petrosyan, S.S., 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., 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., and Zhuravlev, A.N.

Published
2008
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28. Focusing aerogel RICH optimization

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Bobrovnikov, V.S., Buzykaev, A.R., Danilyuk, A.F., Gulevich, V.V., Kirillov, V.L., Kononov, S.A., Kravchenko, E.A., Onuchin, A.P., and Porosev, V.V.

Published
2008
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29. Measurement of R at KEDR

Author

Anashin, V.V., Aulchenko, V.M., Baldin, E.M., Barladyan, A.K., Barnyakov, A.Yu., Barnyakov, M.Yu., Baru, S.E., Basok, I.Yu., Batrakov, A.M., Blinov, A.E., Blinov, V.E., Bobrov, A.V., Bobrovnikov, V.S., Bogomyagkov, A.V., Bondar, A.E., Borodenko, A.A., 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., Kuyanov, I.A., Kuper, E.A., Levichev, E.B., Maksimov, D.A., Malyshev, V.M., Maslennikov, A.L., 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., Ovtin, I.V., Peleganchuk, S.V., Pivovarov, S.G., Piminov, P.A., Petrov, V.V., 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., 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., Zhilich, V.N., Zhulanov, V.V., and Zhuravlev, A.N.

Published
2015
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30. Precision measurement of the ${\cal B}(\Upsilon(3S)\to\tau^+\tau^-)/{\cal B}(\Upsilon(3S)\to\mu^+\mu^-)$ ratio

Author

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, David Nathan, Kolomensky, Yu.G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T.S., McKenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Kozyrev, E.A., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu.I., Solodov, E.P., Todyshev, K.Yu., Lankford, A.J., Dey, B., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Panduro Vazquez, W., Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Li, Y., Lin, D.X., Miyashita, T.S., Ongmongkolkul, P., Oyang, J., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Sun, L., Smith, J.G., Wagner, S.R., Bernard , D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., De Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B.J., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Gabathuler, E., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Brown, David Norvil, Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R., Barlow, R.J., Lafferty, G.D., Cenci, R., Jawahery, A., Roberts, D.A., Cowan, R., Robertson, S.H., Seddon, R.M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D.J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C.P., LoSecco, J.M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G.R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M.A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J.J., Zani, L., Smith, A.J.S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Hess, M., Leddig, T., Voss, C., Waldi, R., Adye, T., Wilson, F.F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M.R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R.C., Fulsom, B.G., Graham, M.T., Hast, C., Innes, W.R., Kim, P., Leith, D.W.G.S., Luitz, S., MacFarlane, D.B., Muller, D.R., Neal, H., Ratcliff, B.N., Roodman, A., Sullivan, M.K., Va'Vra, J., Wisniewski, W.J., Purohit, M.V., Wilson, J.R., Randle-Conde, A., Sekula, S.J., Ahmed, H., Bellis, M., Burchat, P.R., Puccio, E.M.T., Alam, M.S., Ernst, J.A., Gorodeisky, R., Guttman, N., Peimer, D.R., Soffer, A., Spanier, S.M., Ritchie, J.L., Schwitters, R.F., Izen, J.M., Lou, X.C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F.U., King, G.J., Kowalewski, R., Lueck, T., Nugent, I.M., Roney, J.M., Sibidanov, A., Sobie, R.J., Tasneem, N., Gershon, T.J., Harrison, P.F., Latham, T.E., Prepost, R., Wu, S.L., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, BaBar, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
tau: pair production, precision measurement, branching ratio: ratio: measured, Upsilon(10355): electroproduction, electron positron: colliding beams, M048.1, electron positron: annihilation, SLAC PEP Stor, High Energy Physics - Experiment, muon: pair production, +muon%2B+muon%22">Upsilon(10355) --> muon+ muon, M048.16, BaBar, Upsilon(10355): leptonic decay, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, +tau%2B+tau%22">Upsilon(10355) --> tau+ tau, Upsilon(10355): branching ratio, 10.355 GeV-cms, experimental results
Abstract

We report on a precision measurement of the ratio ${\cal R}_{\tau\mu}^{\Upsilon(3S)} = {\cal B}(\Upsilon(3S)\to\tau^+\tau^-)/{\cal B}(\Upsilon(3S)\to\mu^+\mu^-)$ using data collected with the BaBar detector at the SLAC PEP-II $e^+e^-$ collider. The measurement is based on a 28 fb$^{-1}$ data sample collected at a center-of-mass energy of 10.355 GeV corresponding to a sample of 122 million $\Upsilon(3S)$ mesons. The ratio is measured to be ${\cal R}_{\tau\mu}^{\Upsilon(3S)} = 0.966 \pm 0.008_\mathrm{stat} \pm 0.014_\mathrm{syst}$ and is in agreement with the Standard Model prediction of 0.9948 within 2 standard deviations. The uncertainty in ${\cal R}_{\tau\mu}^{\Upsilon(3S)}$ is almost an order of magnitude smaller than the only previous measurement., Comment: 8 pages, 4 figures, 3 tables

Published
2020

31. Technical Design Report for the Panda Forward Spectrometer Calorimeter

Author

Singh, B., Erni, W., Keshelashvili, I., Krusche, B., Steinacher, M., Walford, N., Liu, B., Liu, H., Liu, Z., Shen, X., Wang, C., Zhao, J., Albrecht, M., Backwinkel, M., Erlen, T., Fink, M., Heinsius, F., Held, T., Holtmann, T., Jasper, S., Keshk, I., Koch, H., Kopf, B., KUHL, G., Kuhlmann, M., Kümmel, M., Leiber, S., Leyhe, M., Mikirtychyants, M., Musiol, P., Mustafa, A., Pelizäus, M., Pychy, J., Richter, M., Schnier, C., Schröder, T., Sowa, C., Steinke, M., Triffterer, T., Wiedner, U., Ball, M., Beck, R., Hammann, C., Kaiser, D., Ketzer, B., Kube, M., Mahlberg, P., Roß bach, M., Schmitz, R., Thoma, U., Urban, M., Walther, D., Wendel, C., Wilson, A., Würschig, T., Bianconi, A., Bragadireanu, M., Caprini, M., Pantea, D., Pietreanu, D., Vasile, M., Patel, B., Kaplan, D., Brandys, P., Czyzewski, T., Czyzycki, W., Domagala, M., Filo, G., Gąciarz, T., Hawryluk, M., Jaworowski, J., Krawczyk, M., Kwiatkowski, D., Lisowski, F., Lisowski, E., Michałek, M., Ponański, P., Płażek, J., Tabor, Z., Czech, B., Kistryn, M., Kliczewski, S., Korcyl, K., Kozela, A., Kulessa, P., Lebiedowicz, P., Pysz, K., Schäfer, W., Siudak, R., Szczurek, A., Fiutowski, T., Idzik, M., Mindur, B., Przyborowski, D., Swientek, K., Biernat, J., Jowzaee, S., Kamys, B., Kistryn, S., Korcyl, G., Krzemien, W., Magiera, A., Moskal, P., Palka, M., Pyszniak, A., Rudy, Z., Salabura, P., Smyrski, J., Strzempek, P., Wronska, A., Augustin, I., Lehmann, I., Nicmorus Marinescu, D., Schmitt, L., Varentsov, V., Ahmadi, H., Ahmed, S., Al-Turany, M., Arora, R., Capozza, L., Cardinali, M., Dbeyssi, A., Deiseroth, M., Deppe, H., Dzhygadlo, R., Ehret, A., Flemming, H., Fröhlich, B., Gerhardt, A., Götzen, K., Gromliuk, A., Kalicy, G., Karabowicz, R., Kliemt, R., Krebs, M., Kunkel, J., Kurilla, U., Lehmann, D., Lin, D., Löchner, S., Lühning, J., Lynen, U., Maas, F., Mora Espi, M.C., Morales Morales, C., Nerling, F., Noll, O., Orth, H., Patsyuk, M., Peters, K., Rodriguez Pineiro, D., Saito, N., Saito, T., Sanchez-Lorente, A., Schepers, G., Schmidt, C.J., Schwarz, C., Schwiening, J., Täschner, A., Traxler, M., Ugur, C., Valente, R., Voss, B., Wieczorek, P., Wilms, A., Zimmermann, I., Zühlsdorf, M., Zyzak, M., Abazov, V., Alexeev, G., Arefiev, V.A., Astakhov, V., Barabanov, M.Yu., Batyunya, B.V., Davydov, Y., Dodokhov, V.Kh., Efremov, A., Fechtchenko, A., Fedunov, A.G., Galoyan, A., Grigoryan, S., Koshurnikov, E.K., Lobanov, Y.Yu., Lobanov, V.I., Makarov, A.F., Malinina, L.V., Malyshev, V., Olshevskiy, A.G., Perevalova, E., Piskun, A.A., Pocheptsov, T., Pontecorvo, G., Rodionov, V., Rogov, Y., Salmin, R., Samartsev, A., Sapozhnikov, M.G., Shabratova, G., Skachkov, N.B., Skachkova, A.N., Strokovsky, E.A., Suleimanov, M., Teshev, R., Tokmenin, V., Uzhinsky, V., Vodopianov, A., Zaporozhets, S.A., Zhuravlev, N.I., Zorin, A.G., Branford, D., Glazier, D., Watts, D., Woods, P., Böhm, M., Britting, A., Eyrich, W., Lehmann, A., Uhlig, F., Dobbs, S., Seth, K., Tomaradze, A., Xiao, T., Bettoni, D., Carassiti, V., Cotta Ramusino, A., Dalpiaz, P., Drago, A., Fioravanti, E., Garzia, I., Savrie, M., Stancari, G., Akishina, V., Iakovleva, E., Kisel, I., Kozlov, G., Kulakov, I., Pugach, M., Bianchi, N., Gianotti, P., Guaraldo, C., Lucherini, V., Orecchini, D., Pace, E., Bersani, A., Bracco, G., Macri, M., Parodi, R.F., Bianco, S., Biguenko, K., Bremer, D., Brinkmann, K., Diehl, S., Dormenev, V., Drexler, P., Düren, M., Eissner, T., Etzelmüller, E., Fleischer, S., Föhl, K., Galuska, M., Geß ler, T., Gutz, E., Hahn, C., Hayrapetyan, A., Kesselkaul, M., Kröck, B., Kühn, W., Kuske, T., Lange, J.S., Liang, Y., Merle, O., Metag, V., Mühlheim, D., Münchow, D., Nanova, M., Nazarenko, S., Novotny, R., Pitka, A., Quagli, T., Reiter, S., Rieke, J., Rosenbaum, C., Schmidt, M., Schnell, R., Spruck, B., Stenzel, H., Thöring, U., Ullrich, T., Wagner, M.N., Wasem, T., Werner, M., Wohlfahrt, B., Zaunick, H., Ireland, D., Rosner, G., Seitz, B., Apostolou, A., Babai, M., Kavatsyuk, M., Lemmens, P.J., Lindemulder, M., Löhner, H., Messchendorp, J., Schakel, P., Smit, H., Tiemens, M., van der Weele, J.C., Veenstra, R., Vejdani, S., Dutta, K., Kalita, K., Kumar, A., Roy, A., Sahoo, R., Sohlbach, H., Bianchi, L., Büscher, M., Cao, L., Cebulla, A., Deermann, D., Dosdall, R., Esch, S., Gillitzer, A., Goerres, A., Goldenbaum, F., Grunwald, D., Herten, A., Hu, Q., Kemmerling, G., Kleines, H., Lehrach, A., Maier, R., Nellen, R., Ohannessian, H., Ohm, H., Orfanitski, S., Prasuhn, D., Prencipe, E., Ritman, J., Schadmand, S., Schumann, J., Sefzick, T., Serdyuk, V., Sterzenbach, G., Stockmanns, T., Wintz, P., Wüstner, P., Deepak, P.N., Kulkarni, A., Li, S., Li, Z., Sun, Z., Xu, H., Rigato, V., Fissum, K., Hansen, K., Isaksson, L., Lundin, M., Schröder, B., Achenbach, P., Bleser, S., Corell, O., Denig, A., Distler, M., Feldbauer, F., Fritsch, M., Hoek, M., Jasinski, P., Kang, D., Karavdina, A., Khaneft, D., Klasen, R., Lauth, W., Leithoff, H.H., Maldaner, S., Marta, M., Merkel, H., Michel, M., Motzko, C., Müller, U., Pflüger, S., Pochodzalla, J., Sanchez, S., Schlimme, S., Sfienti, C., Steinen, M., Thiel, M., Weber, T., Zambrana, M., Zhiqing, L., Fedorov, A., Korzihik, M., Missevitch, O., Boukharov, A., Malyshev, O., Marishev, I., Semenov, A., Balanutsa, P., Balanutsa, V., Chernetsky, V., Demekhin, A., Dolgolenko, A., Fedorets, P., Gerasimov, A., Goryachev, V., Chandratre, V., Datar, V., Dutta, D., Jha, V., Kumawat, H., Mohanty, A.K., Parmar, A., Roy, B., Dash, S., Jadhav, M., Kumar, S., Sarin, P., Varma, R., Konorov, I., Paul, S., Grieser, S., Hergemöller, A., Hetz, B., Khoukaz, A., Köhler, E., Wessels, J.P., Khosonthongkee, K., Kobdaj, C., Limphirat, A., Srisawad, P., Yan, Y., Barnyakov, A.Yu., Barnyakov, M., Beloborodov, K., Blinov, A.E., Blinov, V.E., Bobrovnikov, V.S., Kononov, S., Kravchenko, E.A., Kuyanov, I.A., Martin, K., Onuchin, A.P., Serednyakov, S., Sokolov, A., Tikhonov, Y., Atomssa, E., Hennino, T., Imre, M., Kunne, R., Le Galliard, C., Ma, B., Marchand, D., Ong, S., Ramstein, B., Rosier, P., Van De Wiele, J., Wang, Y., Boca, G., Costanza, S., Genova, P., Montagna, P., Rotondi, A., Abramov, V., Belikov, N., Bukreeva, S., Davidenko, A., Derevschikov, A., Goncharenko, Y., Grishin, V., Kachanov, V., Kormilitsin, V., Levin, A., Melnik, Y., Minaev, N., Mochalov, V., Morozov, D., Nogach, L., Poslavskiy, S., Ryabov, A., Ryazantsev, A., Ryzhikov, S., Skvorodnev, N., Semenov, P., Shein, I., Uzunian, A., Vasiliev, A., Yakutin, A., Tomasi-Gustafsson, E., Roy, U., Yabsley, B., Belostotski, S., Gavrilov, G., Izotov, A., Kashchuk, A., Levitskaya, O., Manaenkov, S., Miklukho, O., Naryshkin, Y., Suvorov, K., Veretennikov, D., Zhdanov, A., Bäck, T., Cederwall, B., Makonyi, K., Tegner, P., von Würtemberg, K.M., Wölbing, D., Rai, A.K., Godre, S., Amoroso, A., Bussa, M.P., Busso, L., De Mori, F., Destefanis, M., Fava, L., Ferrero, L., Greco, M., Hu, J., Lavezzi, L., Maggiora, M., Maniscalco, G., Marcello, S., Sosio, S., Spataro, S., Balestra, F., Iazzi, F., Introzzi, R., Lavagno, A., Olave, J., Younis, H., Calvo, D., Coli, S., De Remigis, P., Filippi, A., Giraudo, G., Lusso, S., Mazza, G., Mignone, M., Rivetti, A., Wheadon, R., Zotti, L., Birsa, R., Bradamante, F., Bressan, A., Martin, A., Clement, H., Caldeira Balkestahl, L., Calen, H., Fransson, K., Ikegami Andersson, W., Johansson, T., Kupsc, A., Marciniewski, P., Papenbrock, M., Pettersson, J., Schönning, K., Wolke, M., Zlomanczuk, J., Galnander, B., Diaz, J., Pothodi Chackara, V., Chlopik, A., Kesik, G., Melnychuk, D., Slowinski, B., Trzcinski, A., Wojciechowski, M., Wronka, S., Zwieglinski, B., Brunner, S., Bühler, P., Gruber, L., Marton, J., Steinschaden, D., Suzuki, K., Widmann, E., Zmeskal, J., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, PANDA, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Physics - Instrumentation and Detectors, calorimeter: electromagnetic, Physics::Instrumentation and Detectors, calorimeter: design, Hardware_INTEGRATEDCIRCUITS, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), fabrication, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], performance, activity report, calorimeter: forward spectrometer
Abstract

International audience; This document is devoted to the electromagnetic calorimeter of the Forward Spectrometer and describes the design considerations, the technical layout, the expected performance, and the production readiness.

Published
2019

32. New precise determination of the τ lepton mass at KEDR detector

Author

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.B., Bobrovnikov, V.S., Bogomyagkov, A.V., Bondar, A.E., Bondarev, D.V., Buzykaev, A.R., Cherepanov, V.P., Eidelman, S.I., Glukhovchenko, Yu.M., Gulevich, V.V., Karnaev, S.E., Karpov, G.V., Karpov, S.V., Kiselev, V.A., Kononov, S.A., Kotov, K.Yu., Kravchenko, E.A., Kremyanskaya, E.V., 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.E., Morozov, I.I., Muchnoi, N.Yu., Neufeld, V.V., Nikitin, S.A., Nikolaev, I.B., Onuchin, A.P., Oreshkin, S.B., Orlov, I.O., Osipov, A.A., Peleganchuk, S.V., Petrosyan, S.S., Pivovarov, S.G., Piminov, P.A., Petrov, V.V., Poluektov, A.O., Pospelov, G.E., Prisekin, V.G., Ruban, A.A., Sandyrev, V.K., Savinov, G.A., Shamov, A.G., Shatilov, D.N., Shubin, E.I., Shwartz, B.A., Sidorov, V.A., Simonov, E.A., Sinyatkin, S.V., Skovpen, Yu.I., Skrinsky, A.N., Smaluk, V.V., Soukharev, A.M., Struchalin, M.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., and Zhuravlev, A.N.

Published
2007
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35. FARICH detector beam test results

Author

Barnyakov, A.Yu., primary, Barnyakov, M.Yu., additional, Boborovnikov, V.S., additional, Buzykaev, A.R., additional, Bykov, A.V., additional, Danilyuk, A.F., additional, Kasyanenko, P.V., additional, Katcin, A.A., additional, Kononov, S.A., additional, Kravchenko, E.A., additional, Kuyanov, I.A., additional, Onuchin, A.P., additional, Ovtin, I.V., additional, Podgornov, N.A., additional, Porosev, V.V., additional, Shalygin, A.S., additional, Shekhtman, L.I., additional, and Talyshev, A.A., additional

Published
2020
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36. Aerogel for FARICH detector

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Bobrovnikov, V.S., Buzykaev, A.R., Gulevich, V.V., Danilyuk, A.F., Kononov, S.A., Kravchenko, E.A., Kuyanov, I.A., Lopatin, S.A., Onuchin, A.P., Ovtin, I.V., Podgornov, N.A., Porosev, V.V., Predein, A.Yu., and Protsenko, R.S.

Published
2014
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37. Development of aerogel Cherenkov counters at Novosibirsk

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Bähr, J., Bellunato, T., Beloborodov, K.I., Bobrovnikov, V.S., Buzykaev, A.R., Calvi, M., Danilyuk, A.F., Djordjadze, V., Golubev, V.B., Kononov, S.A., Kravchenko, E.A., Lipka, D., Matteuzzi, C., Musy, M., Onuchin, A.P., Perego, D., Rodiakin, V.A., Savinov, G.A., Serednyakov, S.I., Shamov, A.G., Stephan, F., Tayursky, V.A., and Vorobiov, A.I.

Published
2006
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39. Precise measurement of Ruds and R between 1.84 and 3.72 GeV at the KEDR detector

Author

Anashin, V.V., Anchugov, O.V., Aulchenko, V.M., Baldin, E.M., Baranov, G.N., Barladyan, A.K., Barnyakov, A.Yu., Barnyakov, M.Yu., Baru, S.E., Basok, I.Yu., Batrakov, A.M., Bekhtenev, E.A., Blinov, A.E., Blinov, V.E., Bobrov, A.V., Bobrovnikov, V.S., Bogomyagkov, A.V., Bondar, A.E., Buzykaev, A.R., Cheblakov, P.B., Dorohov, V.L., Eidelman, S.I., Grigoriev, D.N., Glukhov, S.A., Kaminskiy, V.V., Karnaev, S.E., Karpov, G.V., Karpov, S.V., Karukina, K.Yu., Kashtankin, D.P., Kasyanenko, P.V., Kharlamova, T.A., Kiselev, V.A., Kolmogorov, V.V., Kononov, S.A., Kotov, K.Yu., Krasnov, A.A., Kravchenko, E.A., Kudryavtsev, V.N., Kulikov, V.F., Kurkin, G.Ya., Kuyanov, I.A., Levichev, E.B., Maksimov, D.A., Malyshev, V.M., Maslennikov, A.L., Meshkov, O.I., Mishnev, S.I., Morozov, I.A., Morozov, I.I., Nikitin, S.A., Nikolaev, I.B., Okunev, I.N., Onuchin, A.P., Oreshkin, S.B., Osipov, A.A., Ovtin, I.V., Peleganchuk, S.V., Pivovarov, S.G., Piminov, P.A., Petrov, V.V., Prisekin, V.G., Rezanova, O.L., Ruban, A.A., Savinov, G.A., Shamov, A.G., Shatilov, D.N., Shvedov, D.A., Shwartz, B.A., Simonov, E.A., Sinyatkin, S.V., Skrinsky, A.N., Sokolov, A.V., Sukhanov, D.P., Sukharev, A.M., Starostina, E.V., Talyshev, A.A., Tayursky, V.A., Telnov, V.I., Tikhonov, Yu.A., Todyshev, K.Yu., Tribendis, A.G., Tumaikin, G.M., Usov, Yu.V., Vorobiov, A.I., Zhilich, V.N., Zhukov, A.A., Zhulanov, V.V., and Zhuravlev, A.N.

Published
2019
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40. Overview of PID options for experiments at the Super Charm-Tau Factory

Author

Barnyakov, A.Yu., primary, Barnyakov, M.Yu., additional, Belozyorova, M.S., additional, Boborovnikov, V.S., additional, Buzykaev, A.R., additional, Danilyuk, A.F., additional, Katcin, A.A., additional, Kononov, S.A., additional, Kravchenko, E.A., additional, Kuyanov, I.A., additional, Onuchin, A.P., additional, Ovtin, I.V., additional, Plekhov, I.M., additional, Podgornov, N.A., additional, Razuvaev, G.P., additional, Todyshev, K.Yu., additional, and Vorobyev, V.S., additional

Published
2020
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41. PID system based on focusing aerogel RICH for the super C-τ factory

Author

Barnyakov, A.Yu., primary, Barnyakov, M.Yu., additional, Boborovnikov, V.S., additional, Buzykaev, A.R., additional, Bykov, A.V., additional, Danilyuk, A.F., additional, Ignatov, F.V., additional, Kasyanenko, P.V., additional, Katcin, A.A., additional, Kononov, S.A., additional, Korda, D.V., additional, Kravchenko, E.A., additional, Kuyanov, I.A., additional, Onuchin, A.P., additional, Ovtin, I.V., additional, Podgornov, N.A., additional, Porosev, V.V., additional, Shekhtman, L.I., additional, Talyshev, A.A., additional, Tayursky, V.A., additional, and Rodiakin, V.A., additional

Published
2020
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42. Development of aerogel Cherenkov detectors at Novosibirsk

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Bähr, J., Bellunato, T., Beloborodov, K.I., Bobrovnikov, V.S., Buzykaev, A.R., Calvi, M., Danilyuk, A.F., Djordjadze, V., Golubev, V.B., Kononov, S.A., Kravchenko, E.A., Lipka, D., Matteuzzi, C., Musy, M., Onuchin, A.P., Perego, D., Rodiakin, V.A., Savinov, G.A., Serednyakov, S.I., Shamov, A.G., Stephan, F., Tayursky, V.A., and Vorobiov, A.I.

Published
2005
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43. Focusing aerogel RICH (FARICH)

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Bobrovnikov, V.S., Buzykaev, A.R., Danilyuk, A.F., Kirillov, V.L., Kononov, S.A., Kravchenko, E.A., and Onuchin, A.P.

Published
2005
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44. Observation of the Decay $D^0\rightarrow K^-\pi^+e^+e^-$

Author

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, David Nathan, Kolomensky, Yu.G., Fritsch, M., Koch, H., Schroeder, T., Hearty, C., Mattison, T.S., McKenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Kozyrev, E.A., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu.I., Solodov, E.P., Todyshev, K.Yu., Lankford, A.J., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Panduro Vazquez, W., Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Li, Y., Miyashita, T.S., Ongmongkolkul, P., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Sun, L., Smith, J.G., Wagner, S.R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., De Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Brown, David Norvil, Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R., Barlow, R.J., Lafferty, G.D., Cenci, R., Jawahery, A., Roberts, D.A., Cowan, R., Robertson, S.H., Seddon, R.M., Dey, B., Neri, N., Palombo, F., Cheaib, R., Cremaldi, L., Godang, R., Summers, D.J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C.P., LoSecco, J.M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G.R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M.A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J.J., Zani, L., Smith, A.J.S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F.F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M.R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R.C., Fulsom, B.G., Graham, M.T., Hast, C., Kim, P., Leith, D.W.G.S., Luitz, S., MacFarlane, D.B., Muller, D.R., Neal, H., Ratcliff, B.N., Roodman, A., Sullivan, M.K., Va'Vra, J., Wisniewski, W.J., Purohit, M.V., Wilson, J.R., Randle-Conde, A., Sekula, S.J., Ahmed, H., Bellis, M., Burchat, P.R., Puccio, E.M.T., Alam, M.S., Ernst, J.A., Gorodeisky, R., Guttman, N., Peimer, D.R., Soffer, A., Spanier, S.M., Ritchie, J.L., Schwitters, R.F., Izen, J.M., Lou, X.C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F.U., King, G.J., Kowalewski, R., Lueck, T., Nugent, I.M., Roney, J.M., Sobie, R.J., Tasneem, N., Gershon, T.J., Harrison, P.F., Latham, T.E., Prepost, R., Wu, S.L., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, BaBar, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
charm: rare decay, D0: semileptonic decay, electron positron: colliding beams, electron positron: annihilation, S032:Desig=551, SLAC PEP Stor, High Energy Physics - Experiment, S032.552, D0: branching ratio: measured, S032.551, S032:Desig=552, BaBar, mass spectrum: (electron positron), Elementary Particles and Fields, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, statistical, +K-+pi%2B+electron+positron%22">D0 --> K- pi+ electron positron, experimental results
Abstract

We report the observation of the rare charm decay $D^0\rightarrow K^-\pi^+e^+e^-$, based on $468$ fb$^{-1}$ of $e^+e^-$ annihilation data collected at or close to the center-of-mass energy of the $Y(4S)$ resonance with the BaBar detector at the SLAC National Accelerator Laboratory. We find the branching fraction in the invariant mass range $0.675< m(e^+e^-) < 0.875 GeV/c^2$ of the electron-positron pair to be ${\cal B}(D^0\rightarrow K^-\pi^+e^+e^-) = (4.0\pm0.5\pm0.2\pm0.1) \times 10^{-6}$, where the first uncertainty is statistical, the second systematic, and the third due to the uncertainty in the branching fraction of the decay $D^0\rightarrow K^-\pi^+\pi^+\pi^-$ used as a normalization mode. The significance of the observation corresponds to 9.7 standard deviations including systematic uncertainties. This result is consistent with the recently reported $D^0\rightarrow K^-\pi^+\mu^+\mu^-$ branching fraction, measured in the same invariant mass range, and with the value expected in the Standard Model. In a set of regions of $m(e^+e^-)$ where long-distance effects are potentially small, we determine a 90% confidence level upper limit on the branching fraction ${\cal B}(D^0\rightarrow K^-\pi^+e^+e^-) < 3.1 \times 10^{-6}$., Comment: 7 pages, 3 figures

Published
2019

45. Extraction of form Factors from a Four-Dimensional Angular Analysis of $\overline{B} \rightarrow D^\ast \ell^- \overline{\nu}_\ell$

Author

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, David Nathan, Kolomensky, Yu.G., Fritsch, M., Koch, H., Schroeder, T., Hearty, C., Mattison, T.S., McKenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Kozyrev, E.A., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu.I., Solodov, E.P., Todyshev, K.Yu., Lankford, A.J., Dey, B., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Panduro Vazquez, W., Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Li, Y., Miyashita, T.S., Ongmongkolkul, P., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Sun, L., Smith, J.G., Wagner, S.R., Bernard , D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., De Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Brown, David Norvil, Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R., Barlow, R.J., Lafferty, G.D., Cenci, R., Jawahery, A., Roberts, D.A., Cowan, R., Robertson, S.H., Seddon, R.M., Neri, N., Palombo, F., Cheaib, R., Cremaldi, L., Godang, R., Summers, D.J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C.P., LoSecco, J.M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G.R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M.A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J.J., Zani, L., Smith, A.J.S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F.F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M.R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R.C., Fulsom, B.G., Graham, M.T., Hast, C., Kim, P., Leith, D.W.G.S., Luitz, S., MacFarlane, D.B., Muller, D.R., Neal, H., Ratcliff, B.N., Roodman, A., Sullivan, M.K., Va'Vra, J., Wisniewski, W.J., Purohit, M.V., Wilson, J.R., Randle-Conde, A., Sekula, S.J., Ahmed, H., Bellis, M., Burchat, P.R., Puccio, E.M.T., Alam, M.S., Ernst, J.A., Gorodeisky, R., Guttman, N., Peimer, D.R., Soffer, A., Spanier, S.M., Ritchie, J.L., Schwitters, R.F., Izen, J.M., Lou, X.C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F.U., King, G.J., Kowalewski, R., Lueck, T., Nugent, I.M., Roney, J.M., Sobie, R.J., Tasneem, N., Gershon, T.J., Harrison, P.F., Latham, T.E., Prepost, R., Wu, S.L., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, BaBar, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
anti-B: semileptonic decay, data analysis method, Upsilon(10570): electroproduction, dimension: 4, dilepton: mass spectrum, dispersion relation, B: hadronic decay, +D*%282010%29+lepton-+antineutrino%22">anti-B --> D*(2010) lepton- antineutrino, B: branching ratio: measured, electron positron: annihilation, meson, High Energy Physics - Experiment, statistical analysis, quantum chromodynamics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], heavy quark, +D*%282010%29+tau-+antineutrino%2Ftau%22">anti-B --> D*(2010) tau- antineutrino/tau, form factor, decay rate, B: pair production, symmetry: crossing, High Energy Physics::Phenomenology, branching ratio: ratio: measured, parametrization, electron positron: colliding beams, tension, D*(2010), SLAC PEP Stor, analytic properties, kinematics, BaBar, B: decay modes, Elementary Particles and Fields, neutrino: momentum, High Energy Physics::Experiment, charm, experimental results
Abstract

An angular analysis of the decay ${\overline{B} \rightarrow D^\ast \ell^- \overline{\nu}_\ell}$, $\ell\in\{e,\mu\}$, is reported using the full $e^+e^-$ collision data set collected by the \babar experiment at the $\Upsilon(4S)$ resonance. One $B$ meson from the ${\Upsilon(4S)\to B\overline{B}}$ decay is fully reconstructed in a hadronic decay mode, which constrains the kinematics and provides a determination of the neutrino momentum vector. The kinematics of the semileptonic decay is described by the di-lepton mass squared, $q^2$, and three angles. The first unbinned fit to the full four-dimensional decay rate in the Standard Model is performed in the so-called Boyd-Grinstein-Lebed approach, which employs a generic $q^2$ parameterization of the underlying form factors based on crossing symmetry, analyticity and QCD dispersion relations for the amplitudes. A fit using the more model-dependent Caprini-Lellouch-Neubert (CLN) approach is performed as well. Our form factor shapes show deviations from previous fits based on the CLN parameterization. The latest form factors also provide an updated prediction for the branching fraction ratio $\mathcal{R}(D^\ast)\equiv \mathcal{B}(\overline{B}\to D^\ast \tau^- \bar{\nu}_\tau)/\mathcal{B}({\overline{B} \rightarrow D^\ast \ell^- \overline{\nu}_\ell})=0.253 \pm 0.005$. Finally, using the well measured branching fraction for the ${\overline{B} \rightarrow D^\ast \ell^- \overline{\nu}_\ell}$ decay, a value of $|V_{cb}|=(38.36\pm 0.90)\times10^{-3}$ is obtained that is consistent with the current world average for exclusive ${\overline{B}\to D^{(\ast)}\ell^- \overline{\nu}_\ell}$ decays and remains in tension with the determination from inclusive semileptonic $B$ decays to final states with charm.

Published
2019

46. Light Hadron Production in Experiments with the SND Detector at the e+e- Collider VEPP-2000

Author

Achasov M.N., Barnyakov A.Yu., Barnyakov M.Yu., Beloborodov K.I., Berdyugin A.V., Berkaev D.E., Blinov V.E., Bobrovnikov V.S., Bogdanchikov A.G., Botov A.A., Buzykaev A.R., Dimova T.V., Druzhinin V.P., Golubev V.B., Kardapoltsev L.V., Kharlamov A.G., Kirpotin A.N., Kononov S.A., Koop I.A., Korol A.A., Koshuba S.V., Kovrizhin D.P., Kravchenko D.P., Kupich A.S., Lysenko A.P., Martin K.A., Obrazovsky A.E., Onuchin A.P., Pakhtusova E.V., Serednyakov S.I., Romanov A.L., Senchenko A.I., Shatunov P.Yu., Shatunov Yu.M., Shtol D.A., Shwartz D.B., Silagadze Z.K., Skrinsky A.N., Surin I.K., Tikhonov Yu.A., Usov Yu.V., Vasiljev A.V., and Zemlyansky I.M.

Subjects
Physics, QC1-999
Abstract

The experiments have been carried out with the SND detector at the VEPP-2000 e+e− collider in the energy range from 0.3 to 2.0 GeV. The cross sections for the processes e+e− → ωπ0, K+K−, 3π, ηπ+π−, ηγ, pp̄, nn̄ have been measured.

Published
2014
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47. Performance of aerogel as Cherenkov radiator

Author

Bellunato, T, Calvi, M, Matteuzzi, C, Musy, M, Negri, P, Braem, A, Chesi, E, Hansen, C, Liko, D, Joram, C, Neufeld, N, Séguinot, J, Weilhammer, P, Buzykaev, A.R, Kravchenko, E.A, Onuchin, A.P, Danilyuk, A.F, Easo, S, Wotton, S, and Jolly, S

Published
2004
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48. The status of the KEDR ASHIPH system

Author

Barnyakov, A.Yu., Barnyakov, M.Yu., Bobrovnikov, V.S., Buzykaev, A.R., Danilyuk, A.F., Kononov, S.A., Kravchenko, E.A., Minakov, G.D., Onuchin, A.P., Rodiakin, V.A., Savinov, G.A., and Tayursky, V.A.

Published
2004
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49. Measurement of [formula omitted] for ψ(2S) meson

Author

Anashin, V.V., Anchugov, O.V., Aulchenko, V.M., Baldin, E.M., Baranov, G.N., Barladyan, A.K., Barnyakov, A.Yu., Barnyakov, M.Yu., Baru, S.E., Basok, I.Yu., Batrakov, A.M., Bekhtenev, E.A., Blinov, A.E., Blinov, V.E., Bobrov, A.V., Bobrovnikov, V.S., Bogomyagkov, A.V., Bondar, A.E., Buzykaev, A.R., Cheblakov, P.B., Dorohov, V.L., Eidelman, S.I., Grigoriev, D.N., Glukhov, S.A., Karnaev, S.E., Karpov, G.V., Karpov, S.V., Karukina, K.Yu., Kashtankin, D.P., Kharlamova, T.A., Kiselev, V.A., Kolmogorov, V.V., Kononov, S.A., Kotov, K.Yu., Krasnov, A.A., Kravchenko, E.A., Kudryavtsev, V.N., Kulikov, V.F., Kurkin, G.Ya., Kuyanov, I.A., Kuper, E.A., Levichev, E.B., Maksimov, D.A., Malyshev, V.M., Maslennikov, A.L., Meshkov, O.I., Mishnev, S.I., Morozov, I.A., Morozov, I.I., Muchnoi, N.Yu., Nikitin, S.A., Nikolaev, I.B., Okunev, I.N., Onuchin, A.P., Oreshkin, S.B., Osipov, A.A., Ovtin, I.V., Peleganchuk, S.V., Pivovarov, S.G., Piminov, P.A., Petrov, V.V., Prisekin, V.G., Rezanova, O.L., Ruban, A.A., Savinov, G.A., Shamov, A.G., Shatilov, D.N., Shvedov, D.A., Shwartz, B.A., Simonov, E.A., Sinyatkin, S.V., Skrinsky, A.N., Sokolov, A.V., Sukhanov, D.P., Sukharev, A.M., Starostina, E.V., Talyshev, A.A., Tayursky, V.A., Telnov, V.I., Tikhonov, Yu.A., Todyshev, K.Yu., Tribendis, A.G., Tumaikin, G.M., Usov, Yu.V., Vorobiov, A.I., Zhilich, V.N., Zhukov, A.A., Zhulanov, V.V., and Zhuravlev, A.N.

Published
2018
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