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4. The Physics of the B Factories

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Bevan, A. J., Golob, B., Mannel, Th., Prell, S., Yabsley, B. D., Abe, K., Aihara, H., Anulli, F., Arnaud, N., Aushev, T., Beneke, M., Beringer, J., Bianchi, F., Bigi, I. I., Bona, M., Brambilla, N., rodzicka, J. B, Chang, P., Charles, M. J., Cheng, C. H., Cheng, H. -Y., Chistov, R., Colangelo, P., Coleman, J. P., Drutskoy, A., Druzhinin, V. P., Eidelman, S., Eigen, G., Eisner, A. M., Faccini, R., Flood, K. T ., Gambino, P., Gaz, A., Gradl, W., Hayashii, H., Higuchi, T., Hulsbergen, W. D., Hurth, T., Iijima, T., Itoh, R., Jackson, P. D., Kass, R., Kolomensky, Yu. G., Kou, E., Križan, P., Kronfeld, A., Kumano, S., Kwon, Y. J., Latham, T. E., Leith, D. W. G. S., Lüth, V., Martinez-Vidal, F., Meadows, B. T., Mussa, R., Nakao, M., Nishida, S., Ocariz, J., Olsen, S. L., Pakhlov, P., Pakhlova, G., Palano, A., Pich, A., Playfer, S., Poluektov, A., Porter, F. C., Robertson, S. H., Roney, J. M., Roodman, A., Sakai, Y., Schwanda, C., Schwartz, A. J., Seidl, R., Sekula, S. J., Steinhauser, M., Sumisawa, K., Swanson, E. S., Tackmann, F., Trabelsi, K., Uehara, S., Uno, S., van der Water, R., Vasseur, G., Verkerke, W., Waldi, R., Wang, M. Z., Wilson, F. F., Zupan, J., Zupanc, A., Adachi, I., Albert, J., Banerjee, Sw., Bellis, M., Ben-Haim, E., Biassoni, P., Cahn, R. N., Cartaro, C., Chauveau, J., Chen, C., Chiang, C. C., Cowan, R., Dalseno, J., Davier, M., Davies, C., Dingfelder, J. C., nard, B. Eche, Epifanov, D., Fulsom, B. G., Gabareen, A. M., Gary, J. W., Godang, R., Graham, M. T., Hafner, A., Hamilton, B., Hartmann, T., Hayasaka, K., Hearty, C., Iwasaki, Y., Khodjamirian, A., Kusaka, A., Kuzmin, A., Lafferty, G. D., Lazzaro, A., Li, J., Lindemann, D., Long, O., Lusiani, A., Marchiori, G., Martinelli, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Muller, D. R., Nakazawa, H., Ongmongkolkul, P., Pacetti, S., Palombo, F., Pedlar, T. K., Piilonen, L. E., Pilloni, A., Poireau, V., Prothmann, K., Pulliam, T., Rama, M., Ratcliff, B. N., Roudeau, P., Schrenk, S., Schroeder, T., Schubert, K. R., Shen, C. P., Shwartz, B., Soffer, A., Solodov, E. P., Somov, A., Starič, M., Stracka, S., Telnov, A. V., Todyshev, K. Yu., Tsuboyama, T., Uglov, T., Vinokurova, A., Walsh, J. J., Watanabe, Y., Won, E., Wormser, G., Wright, D. H., Ye, S., Zhang, C. C., Abachi, S., Abashian, A., Abe, N., Abe, R., Abe, T., Abrams, G. S., Adam, I., Adamczyk, K., Adametz, A., Adye, T., Agarwal, A., Ahmed, H., Ahmed, M., Ahmed, S., Ahn, B. S., Ahn, H. S., Aitchison, I. J. R., Akai, K., Akar, S., Akatsu, M., Akemoto, M., Akhmetshin, R., Akre, R., Alam, M. S., Albert, J. N., Aleksan, R., Alexander, J. P., Alimonti, G., Allen, M. T., Allison, J., Allmendinger, T., Alsmiller, J. R. G., Altenburg, D., Alwyn, K. E., An, Q., Anderson, J., Andreassen, R., Andreotti, D., Andreotti, M., Andress, J. C., Angelini, C., Anipko, D., Anjomshoaa, A., Anthony, P. L., Antillon, E. A., Antonioli, E., Aoki, K., Arguin, J. F., Arinstein, K., Arisaka, K., Asai, K., Asai, M., Asano, Y., Asgeirsson, D. J., Asner, D. M., Aso, T., Aspinwall, M. L., Aston, D., Atmacan, H., Aubert, B., Aulchenko, V., Ayad, R., Azemoon, T., Aziz, T., Azzolini, V., Azzopardi, D. E., Baak, M. A., Back, J. J., Bagnasco, S., Bahinipati, S., Bailey, D. S., Bailey, S., Bailly, P., van Bakel, N., Bakich, A. M., Bala, A., Balagura, V., Baldini-Ferroli, R., Ban, Y., Banas, E., Band, H. R., Banerjee, S., Baracchini, E., Barate, R., Barberio, E., Barbero, M., Bard, D. J., Barillari, T., Barlow, N. R., Barlow, R. J., Barrett, M., Bartel, W., Bartelt, J., Bartoldus, R., Batignani, G., Battaglia, M., Bauer, J. M., Bay, A., Beaulieu, M., Bechtle, P., Beck, T. W., Becker, J., Becla, J., Bedny, I., Behari, S., Behera, P. K., Behn, E., Behr, L., Beigbeder, C., Beiline, D., Bell, R., Bellini, F., Bellodi, G., Belous, K., Benayoun, M., Benelli, G., Benitez, J. F., Benkebil, M., Berger, N., Bernabeu, J., Bernard, D., Bernet, R., Bernlochner, F. U., Berryhill, J. W., Bertsche, K., Besson, P., Best, D. S., Bettarini, S., Bettoni, D., Bhardwaj, V., Bhimji, W., Bhuyan, B., Biagini, M. E., Biasini, M., van Bibber, K., Biesiada, J., Bingham, I., Bionta, R. M., Bischofberger, M., Bitenc, U., Bizjak, I., Blanc, F., Blaylock, G., Blinov, V. E., Bloom, E., Bloom, P. C., Blount, N. L., Blouw, J., Bly, M., Blyth, S., Boeheim, C. T., Bomben, M., Bondar, A., Bondioli, M., Bonneaud, G. R., Bonvicini, G., Booke, M., Booth, J., Borean, C., Borgland, A. W., Borsato, E., Bosi, F., Bosisio, L., Botov, A. A., Bougher, J., Bouldin, K., Bourgeois, P., Boutigny, D., Bowerman, D. A., Boyarski, A. M., Boyce, R. F., Boyd, J. T., Bozek, A., Bozzi, C., Bračko, M., Brandenburg, G., Brandt, T., Brau, B., Brau, J., Breon, A. B., Breton, D., Brew, C., Briand, H., Bright-Thomas, P. G., Brigljević, V., Britton, D. I., Brochard, F., Broomer, B., Brose, J., Browder, T. E., Brown, C. L., Brown, C. M., Brown, D. N., Browne, M., Bruinsma, M., Brunet, S., Bucci, F., Buchanan, C., Buchmueller, O. L., Bünger, C., Bugg, W., Bukin, A. D., Bula, R., Bulten, H., Burchat, P. R., Burgess, W., Burke, J. P., Button-Shafer, J., Buzykaev, A. R., Buzzo, A., Cai, Y., Calabrese, R., Calcaterra, A., Calderini, G., Camanzi, B., Campagna, E., Campagnari, C., Capra, R., Carassiti, V., Carpinelli, M., Carroll, M., Casarosa, G., Casey, B. C. K., Cason, N. M., Castelli, G., Cavallo, N., Cavoto, G., Cecchi, A., Cenci, R., Cerizza, G., Cervelli, A., Ceseracciu, A., Chai, X., Chaisanguanthum, K. S., Chang, M. C., Chang, Y. H., Chang, Y. W., Chao, D. S., Chao, M., Chao, Y., Charles, E., Chavez, C. A., Cheaib, R., Chekelian, V., Chen, A., Chen, E., Chen, G. P., Chen, H. F., Chen, J. -H., Chen, J. C., Chen, K. F., Chen, P., Chen, S., Chen, W. T., Chen, X., Chen, X. R., Chen, Y. Q., Cheng, B., Cheon, B. G., Chevalier, N., Chia, Y. M., Chidzik, S., Chilikin, K., Chistiakova, M. V., Cizeron, R., Cho, I. S., Cho, K., Chobanova, V., Choi, H. H. F., Choi, K. S., Choi, S. K., Choi, Y., Choi, Y. K., Christ, S., Chu, P. H., Chun, S., Chuvikov, A., Cibinetto, G., Cinabro, D., Clark, A. R., Clark, P. J., Clarke, C. K., Claus, R., Claxton, B., Clifton, Z. C., Cochran, J., Cohen-Tanugi, J., Cohn, H., Colberg, T., Cole, S., Colecchia, F., Condurache, C., Contri, R., Convert, P., Convery, M. R., Cooke, P., Copty, N., Cormack, C. M., Corso, F. Dal, Corwin, L. A., Cossutti, F., Cote, D., Ramusino, A. Cotta, Cottingham, W. N., Couderc, F., Coupal, D. P., Covarelli, R., Cowan, G., Craddock, W. W., Crane, G., Crawley, H. B., Cremaldi, L., Crescente, A., Cristinziani, M., Crnkovic, J., Crosetti, G., Cuhadar-Donszelmann, T., Cunha, A., Curry, S., D'Orazio, A., Dû, S., Dahlinger, G., Dahmes, B., Dallapiccola, C., Danielson, N., Danilov, M., Das, A., Dash, M., Dasu, S., Datta, M., Daudo, F., Dauncey, P. D., David, P., Davis, C. L., Day, C. T., De Mori, F., De Domenico, G., De Groot, N., De la Vaissière, C., de la Vaissière, Ch., de Lesquen, A., De Nardo, G., de Sangro, R., De Silva, A., DeBarger, S., Decker, F. J., Sanchez, P. del Amo, Del Buono, L., Del Gamba, V., del Re, D., Della Ricca, G., Denig, A. G., Derkach, D., Derrington, I. M., DeStaebler, H., Destree, J., Devmal, S., Dey, B., Di Girolamo, B., Di Marco, E., Dickopp, M., Dima, M. O., Dittrich, S., Dittongo, S., Dixon, P., Dneprovsky, L., Dohou, F., Doi, Y., Doležal, Z., Doll, D. A., Donald, M., Dong, L., Dong, L. Y., Dorfan, J., Dorigo, A., Dorsten, M. P., Dowd, R., Dowdell, J., Drásal, Z., Dragic, J., Drummond, B. W., Dubitzky, R. S., Dubois-Felsmann, G. P., Dubrovin, M. S., Duh, Y. C., Duh, Y. T., Dujmic, D., Dungel, W., Dunwoodie, W., Dutta, D., Dvoretskii, A., Dyce, N., Ebert, M., Eckhart, E. A., Ecklund, S., Eckmann, R., Eckstein, P., Edgar, C. L., Edwards, A. J., Egede, U., Eichenbaum, A. M., Elmer, P., Emery, S., Enari, Y., Enomoto, R., Erdos, E., Erickson, R., Ernst, J. A., Erwin, R. J., Escalier, M., Eschenburg, V., Eschrich, I., Esen, S., Esteve, L., Evangelisti, F., Everton, C. W., Eyges, V., Fabby, C., Fabozzi, F., Fahey, S., Falbo, M., Fan, S., Fang, F., Fanin, C., Farbin, A., Farhat, H., Fast, J. E., Feindt, M., Fella, A., Feltresi, E., Ferber, T., Fernholz, R. E., Ferrag, S., Ferrarotto, F., Ferroni, F., Field, R. C., Filippi, A., Finocchiaro, G., Fioravanti, E., da Costa, J. Firmino, Fischer, P. -A., Fisher, A., Fisher, P. H., Flacco, C. J., Flack, R. L., Flaecher, H. U., Flanagan, J., Flanigan, J. M., Ford, K. E., Ford, W. T., Forster, I. J., Forti, A. C., Forti, F., Fortin, D., Foster, B., Foulkes, S. D., Fouque, G., Fox, J., Franchini, P., Sevilla, M. Franco, Franek, B., Frank, E. D., Fransham, K. B., Fratina, S., Fratini, K., Frey, A., Frey, R., Friedl, M., Fritsch, M., Fry, J. R., Fujii, H., Fujikawa, M., Fujita, Y., Fujiyama, Y., Fukunaga, C., Fukushima, M., Fullwood, J., Funahashi, Y., Funakoshi, Y., Furano, F., Furman, M., Furukawa, K., Futterschneider, H., Gabathuler, E., Gabriel, T. A., Gabyshev, N., Gaede, F., Gagliardi, N., Gaidot, A., Gaillard, J. -M., Gaillard, J. R., Galagedera, S., Galeazzi, F., Gallo, F., Gamba, D., Gamet, R., Gan, K. K., Gandini, P., Ganguly, S., Ganzhur, S. F., Gao, Y. Y., Gaponenko, I., Garmash, A., Tico, J. Garra, Garzia, I., Gaspero, M., Gastaldi, F., Gatto, C., Gaur, V., Geddes, N. I., Geld, T. L., Genat, J. -F., George, K. A., George, M., George, S., Georgette, Z., Gershon, T. J., Gill, M. S., Gillard, R., Gilman, J. D., Giordano, F., Giorgi, M. A., Giraud, P. -F., Gladney, L., Glanzman, T., Glattauer, R., Go, A., Goetzen, K., Goh, Y. M., Gokhroo, G., Goldenzweig, P., Golubev, V. B., Gopal, G. P., Gordon, A., Gorišek, A., Goriletsky, V. I., Gorodeisky, R., Gosset, L., Gotow, K., Gowdy, S. J., Graffin, P., Grancagnolo, S., Grauges, E., Graziani, G., Green, M. G., Greene, M. G., Grenier, G. J., Grenier, P., Griessinger, K., Grillo, A. A., Grinyov, B. V., Gritsan, A. V., Grosdidier, G., Perdekamp, M. Grosse, Grosso, P., Grothe, M., Groysman, Y., Grünberg, O., Guido, E., Guler, H., Gunawardane, N. J. W., Guo, Q. H., Guo, R. S., Guo, Z. J., Guttman, N., Ha, H., Ha, H. C., Haas, T., Haba, J., Hachtel, J., Hadavand, H. K., Hadig, T., Hagner, C., Haire, M., Haitani, F., Haji, T., Haller, G., Halyo, V., Hamano, K., Hamasaki, H., de Monchenault, G. Hamel, Hamilton, J., Hamilton, R., Hamon, O., Han, B. Y., Han, Y. L., Hanada, H., Hanagaki, K., Handa, F., Hanson, J. E., Hanushevsky, A., Hara, K., Hara, T., Harada, Y., Harrison, P. F., Harrison, T. J., Harrop, B., Hart, A. J., Hart, P. A., Hartfiel, B. L., Harton, J. L., Haruyama, T., Hasan, A., Hasegawa, Y., Hast, C., Hastings, N. C., Hasuko, K., Hauke, A., Hawkes, C. M., Hayashi, K., Hazumi, M., Hee, C., Heenan, E. M., Heffernan, D., Held, T., Henderson, R., Henderson, S. W., Hertzbach, S. S., Hervé, S., Heß, M., Heusch, C. A., Hicheur, A., Higashi, Y., Higasino, Y., Higuchi, I., Hikita, S., Hill, E. J., Himel, T., Hinz, L., Hirai, T., Hirano, H., Hirschauer, J. F., Hitlin, D. G., Hitomi, N., Hodgkinson, M. C., Höcker, A., Hoi, C. T., Hojo, T., Hokuue, T., Hollar, J. J., Hong, T. M., Honscheid, K., Hooberman, B., Hopkins, D. A., Horii, Y., Hoshi, Y., Hoshina, K., Hou, S., Hou, W. S., Hryn'ova, T., Hsiung, Y. B., Hsu, C. L., Hsu, S. C., Hu, H., Hu, T., Huang, H. C., Huang, T. J., Huang, Y. C., Huard, Z., Huffer, M. E., Hufnagel, D., Hung, T., Hutchcroft, D. E., Hyun, H. J., Ichizawa, S., Igaki, T., Igarashi, A., Igarashi, S., Igarashi, Y., Igonkina, O., Ikado, K., Ikeda, H., Ikeda, K., Ilic, J., Inami, K., Innes, W. R., Inoue, Y., Ishikawa, A., Ishino, H., Itagaki, K., Itami, S., Itoh, K., Ivanchenko, V. N., Iverson, R., Iwabuchi, M., Iwai, G., Iwai, M., Iwaida, S., Iwamoto, M., Iwasaki, H., Iwasaki, M., Iwashita, T., Izen, J. M., Jackson, D. J., Jackson, F., Jackson, G., Jackson, P. S., Jacobsen, R. G., Jacoby, C., Jaegle, I., Jain, V., Jalocha, P., Jang, H. K., Jasper, H., Jawahery, A., Jayatilleke, S., Jen, C. M., Jensen, F., Jessop, C. P., Ji, X. B., John, M. J. J., Johnson, D. R., Johnson, J. R., Jolly, S., Jones, M., Joo, K. K., Joshi, N., Joshi, N. J., Judd, D., Julius, T., Kadel, R. W., Kadyk, J. A., Kagan, H., Kagan, R., Kah, D. H., Kaiser, S., Kaji, H., Kajiwara, S., Kakuno, H., Kameshima, T., Kaminski, J., Kamitani, T., Kaneko, J., Kang, J. H., Kang, J. S., Kani, T., Kapusta, P., Karbach, T. M., Karolak, M., Karyotakis, Y., Kasami, K., Katano, G., Kataoka, S. U., Katayama, N., Kato, E., Kato, Y., Kawai, H., Kawai, M., Kawamura, N., Kawasaki, T., Kay, J., Kay, M., Kelly, M. P., Kelsey, M. H., Kent, N., Kerth, L. T., Khan, A., Khan, H. R., Kharakh, D., Kibayashi, A., Kichimi, H., Kiesling, C., Kikuchi, M., Kikutani, E., Kim, B. H., Kim, C. H., Kim, D. W., Kim, H., Kim, H. J., Kim, H. O., Kim, H. W., Kim, J. B., Kim, J. H., Kim, K. T., Kim, M. J., Kim, P., Kim, S. K., Kim, S. M., Kim, T. H., Kim, Y. I., Kim, Y. J., King, G. J., Kinoshita, K., Kirk, A., Kirkby, D., Kitayama, I., Klemetti, M., Klose, V., Klucar, J., Knecht, N. S., Knoepfel, K. J., Knowles, D. J., Ko, B. R., Kobayashi, N., Kobayashi, S., Kobayashi, T., Kobel, M. J., Koblitz, S., Koch, H., Kocian, M. L., Kodyš, P., Koeneke, K., Kofler, R., Koike, S., Koishi, S., Koiso, H., Kolb, J. A., Kolya, S. D., Kondo, Y., Konishi, H., Koppenburg, P., Koptchev, V. B., Kordich, T. M. B., Korol, A. A., Korotushenko, K., Korpar, S., Kouzes, R. T., Kovalskyi, D., Kowalewski, R., Kozakai, Y., Kozanecki, W., Kral, J. F., Krasnykh, A., Krause, R., Kravchenko, E. A., Krebs, J., Kreisel, A., Kreps, M., Krishnamurthy, M., Kroeger, R., Kroeger, W., Krokovny, P., Kronenbitter, B., Kroseberg, J., Kubo, T., Kuhr, T., Kukartsev, G., Kulasiri, R., Kulikov, A., Kumar, R., Kumar, S., Kumita, T., Kuniya, T., Kunze, M., Kuo, C. C., Kuo, T. -L., Kurashiro, H., Kurihara, E., Kurita, N., Kuroki, Y., Kurup, A., Kutter, P. E., Kuznetsova, N., Kvasnička, P., Kyberd, P., Kyeong, S. H., Lacker, H. M., Lae, C. K., Lamanna, E., Lamsa, J., Lanceri, L., Landi, L., Lang, M. I., Lange, D. J., Lange, J. S., Langenegger, U., Langer, M., Lankford, A. J., Lanni, F., Laplace, S., Latour, E., Lau, Y. P., Lavin, D. R., Layter, J., Lebbolo, H., LeClerc, C., Leddig, T., Leder, G., Diberder, F. Le, Lee, C. L., Lee, J., Lee, J. S., Lee, M. C., Lee, M. H., Lee, M. J., Lee, S. -J., Lee, S. E., Lee, S. H., Lee, Y. J., Lees, J. P., Legendre, M., Leitgab, M., Leitner, R., Leonardi, E., Leonidopoulos, C., Lepeltier, V., Leruste, Ph., Lesiak, T., Levi, M. E., Levy, S. L., Lewandowski, B., Lewczuk, M. J., Lewis, P., Li, H., Li, H. B., Li, S., Li, X., Li, Y., Gioi, L. Li, Libby, J., Lidbury, J., Lillard, V., Lim, C. L., Limosani, A., Lin, C. S., Lin, J. Y., Lin, S. W., Lin, Y. S., Lindquist, B., Lindsay, C., Lista, L., Liu, C., Liu, F., Liu, H., Liu, H. M., Liu, J., Liu, R., Liu, T., Liu, Y., Liu, Z. Q., Liventsev, D., Vetere, M. Lo, Locke, C. B., Lockman, W. S., Di Lodovico, F., Lombardo, V., London, G. W., Pegna, D. Lopes, Lopez, L., Lopez-March, N., Lory, J., LoSecco, J. M., Lou, X. C., Louvot, R., Lu, A., Lu, C., Lu, M., Lu, R. S., Lueck, T., Luitz, S., Lukin, P., Lund, P., Luppi, E., Lutz, A. M., Lutz, O., Lynch, G., Lynch, H. L., Lyon, A. J., Lyubinsky, V. R., MacFarlane, D. B., Mackay, C., MacNaughton, J., Macri, M. M., Madani, S., Mader, W. F., Majewski, S. A., Majumder, G., Makida, Y., Malaescu, B., Malaguti, R., Malclès, J., Mallik, U., Maly, E., Mamada, H., Manabe, A., Mancinelli, G., Mandelkern, M., Mandl, F., Manfredi, P. F., Mangeol, D. J. J., Manoni, E., Mao, Z. P., Margoni, M., Marker, C. E., Markey, G., Marks, J., Marlow, D., Marques, V., Marsiske, H., Martellotti, S., Martin, E. C., Martin, J. P., Martin, L., Martinez, A. J., Marzolla, M., Mass, A., Masuzawa, M., Mathieu, A., Matricon, P., Matsubara, T., Matsuda, T., Matsumoto, H., Matsumoto, S., Matsumoto, T., Matsuo, H., Mattison, T. S., Matvienko, D., Matyja, A., Mayer, B., Mazur, M. A., Mazzoni, M. A., McCulloch, M., McDonald, J., McFall, J. D., McGrath, P., McKemey, A. K., McKenna, J. A., Mclachlin, S. E., McMahon, S., McMahon, T. R., McOnie, S., Medvedeva, T., Melen, R., Mellado, B., Menges, W., Menke, S., Merchant, A. M., Merkel, J., Messner, R., Metcalfe, S., Metzler, S., Meyer, N. T., Meyer, T. I., Meyer, W. T., Michael, A. K., Michelon, G., Michizono, S., Micout, P., Miftakov, V., Mihalyi, A., Mikami, Y., Milanes, D. A., Milek, M., Mimashi, T., Minamora, J. S., Mindas, C., Minutoli, S., Mir, L. M., Mishra, K., Mitaroff, W., Miyake, H., Miyashita, T. S., Miyata, H., Miyazaki, Y., Moffitt, L. C., Mohapatra, A., Mohapatra, A. K., Mohapatra, D., Moll, A., Moloney, G. R., Mols, J. P., Mommsen, R. K., Monge, M. R., Monorchio, D., Moore, T. B., Moorhead, G. F., de Freitas, P. Mora, Morandin, M., Morgan, N., Morgan, S. E., Morganti, M., Morganti, S., Mori, S., Mori, T., Morii, M., Morris, J. P., Morsani, F., Morton, G. W., Moss, L. J., Mouly, J. P., Mount, R., Mueller, J., Müller-Pfefferkorn, R., Mugge, M., Muheim, F., Muir, A., Mullin, E., Munerato, M., Murakami, A., Murakami, T., Muramatsu, N., Musico, P., Nagai, I., Nagamine, T., Nagasaka, Y., Nagashima, Y., Nagayama, S., Nagel, M., Naisbit, M. T., Nakadaira, T., Nakahama, Y., Nakajima, M., Nakajima, T., Nakamura, I., Nakamura, T., Nakamura, T. T., Nakano, E., Nakayama, H., Nam, J. W., Narita, S., Narsky, I., Nash, J . 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M., Zhulanov, V., Ziegler, T., Ziegler, V., Zioulas, G., Zisman, M., Zito, M., Zürcher, D., Zwahlen, N., Zyukova, O., Živko, T., and Žontar, D.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

This work is on the Physics of the B Factories. Part A of this book contains a brief description of the SLAC and KEK B Factories as well as their detectors, BaBar and Belle, and data taking related issues. Part B discusses tools and methods used by the experiments in order to obtain results. The results themselves can be found in Part C. Please note that version 3 on the archive is the auxiliary version of the Physics of the B Factories book. This uses the notation alpha, beta, gamma for the angles of the Unitarity Triangle. The nominal version uses the notation phi_1, phi_2 and phi_3. Please cite this work as Eur. Phys. J. C74 (2014) 3026., Comment: 928 pages, version 3 (arXiv:1406.6311v3) corresponds to the alpha, beta, gamma version of the book, the other versions use the phi1, phi2, phi3 notation

Published
2014
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5. Experimental study of the e+e- -> pi0 gamma process in the energy region sqrt(s)=0.60-0.97 GeV

Author

Achasov, M. N., Beloborodov, K. I., Berdugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Dimova, T. V., Druzhinin, V. P., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Pakhtusova, E. V., Polunin, A. A., Pyata, E. E., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Skripkin, A. G., Usov, Yu. V., Valishev, A. A., and Vasiljev, A. V.

Subjects
High Energy Physics - Experiment
Abstract

Results of the study of the e+e-->pi0 gamma process with SND detector at VEPP-2M collider in the c.m.s. energy range sqrt(s)=0.60-0.97 GeV are presented. Using 36513 selected events corresponding to a total integrated luminosity of 3.4 pb^-1 the e+e-->pi0 gamma cross section was measured. The energy dependence of the cross section was analyzed in the framework of the vector meson dominance model. The data are well described by a sum of phi,omega,rho0->pi0 gamma decay contributions with measured decay probabilities: Br(omega->pi0 gamma)=(9.34+-0.15+-0.31)% and Br(rho0->pi0 gamma)=(5.15+-1.16+-0.73)*10^-4 . The rho-omega relative interference phase is phi(rho,omega}=(-10.2+-6.5+-2.5) degree.

Published
2003
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6. Experimental Study of rho -> pi0 pi0 gamma and omega -> pi0 pi0 gamma Decays

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, D. A., Burdin, S. V., Vasiljev, A. V., Golubev, V. B., Dimova, T. V., Druzhinin, V. P., Ivanchenko, V. N., Korol, A. A., Koop, I. A., Koshuba, S. V., Otboev, A. V., Pakhtusova, E. V., Salnikov, A. A., Serednyakov, S. I., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Skripkin, A. G., Usov, Yu. V., Shary, V. V., and Shatunov, Yu. M.

Subjects
High Energy Physics - Experiment
Abstract

The e+e- -> pi0 pi0 gamma process was studied in the SND experiment at VEPP-2M e+e- collider in the energy region 0.60-0.97 GeV. From the analysis of the energy dependence of measured cross section the branching ratios B(omega -> pi0 pi0 gamma)= (6.6 +1.4-0.8(stat) +-0.6(syst))x10^-5 and B(rho -> pi0 pi0 gamma)=(4.1 +1.0-0.9(stat) +-0.3(syst))x10^-5 were obtained., Comment: 16 pages, 7 figures, submitted to Phys. Lett. B

Published
2002
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7. Study of the $\rho$, $\omega$, $\phi\to\eta\gamma\to 7\gamma$ Decays with an SND Detector on a VEPP-2M Collider

Author

Achasov, M. N., Baru, S. E., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bogdanchikov, A. G., Bukin, D. A., Burdin, S. V., Vasiljev, A. V., Velikzhanin, Yu. S., Dimova, T. V., Druzhinin, V. P., Dubrovin, M. S., Ganyushin, D. I., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Kukartsev, G. A., Pakhtusova, E. V., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., and Silagadze, Z. K.

Subjects
High Energy Physics - Experiment
Abstract

The $e^+e^-\to\eta\gamma\to 7\gamma$ process was studied in the energy range $2E=600\div 1060$ MeV with an SND detector on a VEPP-2M $e^+e^-$ collider. The decay branching ratios $B(\phi\to\eta\gamma)=(1.343\pm 0.012\pm 0.055)\cdot 10^{-2}$, $B(\omega\to\eta\gamma)=(4.60\pm 0.72\pm 0.19)\cdot 10^{-4}$, and $B(\rho\to\eta\gamma)=(2.69\pm 0.32\pm 0.16)\cdot 10^{-4}$ were measured., Comment: 5 pages, 4 figures

Published
2002
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8. Study of the process $e^+e^- \to \pi^+\pi^-\pi^0$ in the energy region $\sqrt[]{s}$ from 0.98 to 1.38 GeV.}

Author

Achasov, M. N., Aulchenko, V. M., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Druzhinin, V. P., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Nesterenko, I. N., Pakhtusova, E. V., Polunin, A. A., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Skripkin, A. G., Usov, Yu. V., and Vasiljev, A. V.

Subjects
High Energy Physics - Experiment
Abstract

The cross section of the process $e^+e^-\to \pi^+\pi^-\pi^0$ was measured in the Spherical Neutral Detector experiment at the VEPP-2M collider in the energy region $\sqrt[]{s} = 980 \div 1380$ MeV. The measured cross section, together with the $e^+e^-\to \pi^+\pi^-\pi^0$ and $\omega\pi^+\pi^-$ cross sections obtained in other experiments, was analyzed in the framework of the generalized vector meson dominance model. It was found that the experimental data can be described by a sum of $\omega$, $\phi$ mesons and two $\omega^\prime$ and $\omega^{\prime\prime}$ resonances contributions, with masses $m_{\omega^\prime}\sim 1490$,$m_{\omega^{\prime\prime}}\sim 1790$ MeV and widths $\Gamma_{\omega^\prime}\sim 1210$, $\Gamma_{\omega^{\prime\prime}}\sim 560$ MeV. The analysis of the $\pi^+\pi^-$ invariant mass spectra in the energy region $\sqrt[]{s}$ from 1100 to 1380 MeV has shown that for their descriptionone should take into account the $e^+e^-\to\omega\pi^0\to\pi^+\pi^-\pi^0$ mechanism also. The phase between the amplitudes corresponding to the $e^+e^-\to\omega\pi$ and $e^+e^-\to\rho\pi$ intermediate states was measured for the first time. The value of the phase is close to zero and depends on energy., Comment: 29 pages REVTEX and 17 figures, accepted for publication in Physical Review D

Published
2002
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9. Review of experimental results from SND detector

Author

Achasov, M. N., Aulchenko, V. M., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Drozdetski, A. A., Druzhinin, V. P., Ganushin, D. I., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Koshuba, S. V., Nesterenko, I. N., Pakhtusova, E. V., Polunin, A. A., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Skripkin, A. G., Usov, Yu. V., and Vasiljev, A. V.

Subjects
High Energy Physics - Experiment
Abstract

The review of experimental results obtained with SND detector at VEPP-2M $e^+e^-$ collider in the energy region $\sqrt[]{s}=0.36$ -- 1.38 GeV is given. The presented results include the following items: studies of the light vector mesons radiative decays, OZI-rule and G-parity suppressed $\phi$-meson rare decays, $\phi$-meson parameters measurements, studies of $e^+e^-\to\pi^+\pi^-\pi^0$ process dynamics, $\eta$ and $K_S$ mesons rare decays, $\eta$ and $\phi$ mesons conversion decays, and study of the $e^+e^-$ annihilation into hadrons., Comment: 12 pages and 6 figures. Talk given at the IX International Conference on Hadron Spectroskopy, Protvino, Russia, August 25 - September 1, 2001

Published
2001
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10. Study of the $\pi\pi$ mass spectra in the process $e^+e^- \to \pi^+\pi^-\pi^0$ at $\sqrt[]{s} \simeq 1020$ MeV

Author

Achasov, M. N., Aulchenko, V. M., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Druzhinin, V. P., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Korostelev, M. S., Koshuba, S. V., Otboev, A. V., Pakhtusova, E. V., Perevedentsev, E. A., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Vasiljev, A. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

The invariant mass spectra of the $\pi^+\pi^-$ and $\pi^\pm\pi^0$ pairs in the process $e^+e^- \to \pi^+\pi^-\pi^0$ were studied in the SND experiment at the VEPP-2M collider in the energy region $\sqrt[]{s} \simeq 1020$ MeV. These studies were based on about $0.5 \times 10^6$ experimental events. The spectra were analyzed in the framework of the vector meson dominance model. It was found that the experimental data can be described with $e^+e^- \to \rho\pi \to \pi^+\pi^-\pi^0$ transition only. Upper limit on the branching ratio of the $\phi(1020)\to\pi^+\pi^-\pi^0$ decay through intermediate states different from $\rho\pi$ was obtained at the 90 % confidence level: $B(\phi\to\pi^+\pi^-\pi^0)<6 \cdot 10^{-4}$. The $\rho$-meson mass and width which follow from the spectra analysis are $m_\rho=775.0\pm 1.3$ MeV, $\Gamma_\rho=150.4 \pm 3.0$ MeV. Neutral and charged $\rho$-mesons mass difference was found to equal $m_{\rho^\pm}-m_{\rho^0}=-1.3\pm2.3$ MeV. In the $\pi^+\pi^-$ mass spectrum the $\rho-\omega$ interference was seen at two standard deviations level., Comment: 22 pages REVTEX and 19 figures

Published
2001
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11. SND Upgade

Author

Abramov, G. N., Achasov, M. N., Aulchenko, V. M., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, D. A., Bukin, M. A., Burdin, S. V., Danilyuk, A. F., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Koshuba, S. V., Kravchenko, E. A., Maksimov, L. V., Obrazovsky, A. E., Onuchin, A. P., Ovchar, A. V., Pakhtusova, E. V., Peshkov, M. A., Popov, V. M., Pyata, E. E., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Silagadze, Z. K., Sirotkin, A. A., Skripkin, A. G., Usov, Yu. V., Vasiljev, A. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

The program of upgrade of the Spherical Neutral Detector for future experiments at a new VEPP-2000 $e^+e^-$ collider is presented. Modernization includes upgrades of electromagnetic calorimeter, tracking system, detector electronics, data acquisition system, and offline software. It is also planned to equip the detector with two new subsystems: particle identification system based on aerogel Cherenkov counters and external electron tagging system for $\gamma\gamma$ physics., Comment: Invited talk at "e+e- Physics at Intermediate Energies Workshop", SLAC, Stanford, California, April 30 - May 2, 2001, (T10) 6 pages, 9 figures

Published
2001

12. Direct measurement of the phi(1020) leptonic branching ratio

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Koshuba, S. V., Lysenko, A. P., Nesterenko, I. N., Pakhtusova, E. V., Perevedentsev, E. A., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Usov, Yu. V., and Vasiljev, A. V.

Subjects
High Energy Physics - Experiment
Abstract

The process e+e-->mu+mu- has been studied by SND detector at VEPP-2M e+e- collider in the phi(1020)-resonance energy region. The measured effective phi meson leptonic branching ratio: B(phi->l+l-)=sqrt{B(phi->e+e-)*B(phi->mu+mu-)}=(2.89+-0.10+-0.06)*10^{-4} agrees well with the PDG value B(phi->e+e-)=(2.91+-0.07)*10^{-4} confirming mu-e universality. Without additional assumption of mu-e universality the branching ratio B(phi->mu+mu-)=(2.87+-0.20+-0.14)*10^{-4} was obtained., Comment: RevTeX, 5 pages, 3 figures. To be published in Phys. Rev. Lett

Published
2001
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13. Search for the radiative decay $\eta \to \pi^0 \gamma \gamma$ in the SND experiment at VEPP-2M

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bogdanchikov, A. G., Bukin, D. A., Burdin, S. V., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Ganyushin, D. I., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Otboev, A. V., Pakhtusova, E. V., Salnikov, A. A., Shary, V. V., Serednyakov, S. I., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skripkin, A. G., Valishev, A. A., Vasiljev, A. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

The $\eta \to \pi^0 \gamma \gamma$ decay was investigated by the SND detector at VEPP-2M $e^+e^-$ collider in the reaction $e^+e^-\to\phi\to \eta\gamma$. Here we present the results and some details of this study. We report an upper limit (90% c.l.) $Br(\eta \to \pi^0 \gamma \gamma)<8.4\times 10^{-4}$ as our final result. Our upper limit does not contradict the earlier measurement by GAMS spectrometer. To facilitate future studies a rather detailed review of the problem is also given., Comment: 24 pages, 6 figures, LaTex. To be published in Nucl. Phys. B

Published
2001
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14. Recent results from SND detector at VEPP-2M

Author

Achasov, M. N., Aulchenko, V. M., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bogdanchikov, A. G., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Koshuba, S. V., Mamutkin, A. A., Pakhtusova, E. V., Perevedentsev, E. A., Pyata, E. E., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Skripkin, A. G., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., and Vasiljev, A. V.

Subjects
High Energy Physics - Experiment
Abstract

The current status of experiments with SND detector at VEPP-2M $e^+e^-$ collider in the energy range $2E_0=0.4-1.4$ GeV is given. The new results of analysis of $\phi$ decay into $\pi^0\pi^0\gamma$, $\eta\pi^0\gamma$ are based on the full SND statistics corresponding 20 million of $\phi$ decay. New measurement of $\omega\to\pi^0\pi^0\gamma$ decay and a first observation of $\rho\to\pi^0\pi^0\gamma$ are presented. The accuracy of many other rare decays of light vector mesons was improved. In the energy range $2E_0=1.0\div1.4$ GeV the cross sections of the processes $e^+e^-\to\omega\pi^0$ and $e^+e^-\to\pi^+\pi^-\pi^0$ were measured. The results of the fitting of data are discussed., Comment: 13 pages, Talk given at the XXIII International Workshop on the Fundamental Problems of High Energy Physics and Field Theory, Protvino, Russia, June 21-23,2000

Published
2000

15. Search for direct production of a2(1320) and f2(1270) mesons in e+e- annihilation

Author

Achasov, M. N., Baru, S. E., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, D. A., Burdin, S. V., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Korostelev, M. S., Koshuba, S. V., Kukartsev, G. A., Pakhtusova, E. V., Polunin, A. A., Pyata, E. E., Salnikov, A. A., Serednyakov, S. I., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Shary, V. V., Shatunov, Yu. M., and Vasiljev, A. V.

Subjects
High Energy Physics - Experiment
Abstract

A search for direct production of C-even resonances a2(1320) and f2(1270) in e+e- annihilation was performed with SND detector at VEPP-2M e+e- collider. The upper limits of electronic widths of these mesons were obtained at 90% confidence level: Gamma(a2(1320) \to e+e-) < 0.56 eV, Gamma(f2(1270) \to e+e-) < 0.11 eV., Comment: 6 pages, 5 figures, 1 table. Submitted to Phys. Lett. B

Published
2000
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16. Measurements of the parameters of the $\phi(1020)$ resonance through studies of the processes $e^+e^- \to K^+K^-$, $K_SK_L$ and $\pi^+\pi^-\pi^0$

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Korostelev, M. S., Koshuba, S. V., Pakhtusova, E. V., Polunin, A. A., Pyata, E. E., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Usov, Yu. V., Vasiljev, A. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

The cross sections of the processes $e^+e^- \to K^+K^-$, $e^+e^- \to K_SK_L$ and $e^+e^- \to \pi^+\pi^-\pi^0$ were measured in the SND experiment at the VEPP-2M collider in the energy region near the $\phi(1020)$ meson. These measurements were based on about $10^6$ $K^+K^-$, $0.5 \times 10^6$ $K_SK_L$ and $0.4 \times 10^6$ $\pi^+\pi^-\pi^0$ selected events. Themeasured cross sections have been analyzed in the framework of the vector meson dominance model and the main parameters of the $\phi$-resonance were obtained, such as its mass, width, the production cross section and branching ratios of the main decay modes. The measured value of the $\phi$ meson total width, $\Gamma_{\phi} = 4.21 \pm 0.04$ is lower than the present world average of $4.458 \pm 0.032$ MeV. Contributions in addition to the conventional vector meson dominance model were found in the $e^+e^- \to \pi^+\pi^-\pi^0$ reaction cross section., Comment: 26 pages REVTEX and 15 figures, accepted for publication in Physical Review D

Published
2000
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17. The process $e^+e^-\to\omega\pi^0\to\pi^0\pi^0\gamma$ up to 1.4 GeV

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, D. A., Burdin, S. V., Golubev, V. B., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Kukartsev, G. A., Nesterenko, I. N., Pakhtusova, E. V., Perevedentsev, E. A., Popov, V. M., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Skripkin, A. G., Usov, Yu. V., Valishev, A. A., Vasiljev, A. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

The cross section of the $e^+e^-\to\omega\pi^0\to\pi^0\pi^0\gamma$ reaction was measured by the SND detector at VEPP-2M $e^+e^-$ collider in the energy range from threshold up to 1.4 GeV. Results of the cross section fitting by the sum of $\rho$, $\rho^{\prime}$ and $\rho^{\prime\prime}$ contributions are presented., Comment: 8 pages, 3 figures, 2 tables. Submitted to Phys. Lett. B

Published
2000
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18. The $\phi(1020)\to\pi^0\pi^0\gamma$ decay

Author

Achasov, M. N., Baru, S. E., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koop, I. A., Koshuba, S. V., Kukartsev, G. A., Mamutkin, A. A., Pakhtusova, E. V., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Valishev, A. A., and Vasiljev, A. V.

Subjects
High Energy Physics - Experiment
Abstract

In the SND experiment at VEPP-2M $e^+e^-$ collider the $\phi(1020)\to\pi^0\pi^0\gamma$ decay was studied and its branching ratio was measured: $B(\phi\to\pi^0\pi^0\gamma)=(1.221\pm 0.098\pm0.061)\cdot10^{-4}$. It was shown, that $f_0(980)\gamma$ intermediate state dominates in this decay and the $f_0(980)$-meson parameters were obtained., Comment: 15 pages, 5 figure, 4 table, Submitted to Phys. Lett. B

Published
2000
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19. Decay phi->pi+pi-

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Druzhinin, V. P., Dubrovin, M. S., Ganyushin, D. I., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Koshuba, S. V., Pakhtusova, E. V., Perevedentsev, E. A., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Valishev, A. A., and Vasiljev, A. V.

Subjects
High Energy Physics - Experiment
Abstract

The process e+e- ->pi+pi- has been studied with the SND detector at VEPP-2M e+e- collider in the vicinity of phi(1020) resonance. From the analysis of the energy dependence of measured cross section the branching ratio B(phi->pi+pi-)=(7.1+-1.1+-0.9)*10^{-5} and the phase psi_pi=-(34+-4+-3)degrees of interference with the non-resonant pi+pi- production amplitude were obtained., Comment: 6 pages, 5 figures, to be published in Physics Letters B

Published
2000
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20. New experimental data for the decays $\phi\to\mu^+\mu^-$ and $\phi\to\pi^+\pi^-$ from SND detector

Author

Achasov, M. N., Aulchenko, V. M., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Koshuba, S. V., Kukartsev, G. A., Nesterenko, I. N., Otboev, A. V., Pakhtusova, E. V., Popov, V. M., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Usov, Yu. V., Vasiljev, A. V., and Zakharov, A. S.

Subjects
High Energy Physics - Experiment
Abstract

The processes $e^+e^-\to\mu^+\mu^-$ and $e^+e^-\to\pi^+\pi^-$ have been studied with SND detector at VEPP-2M $e^+e^-$ collider in the vicinity of $\phi(1020)$ resonance. The branching ratios $B(\phi\to\mu^+\mu^-)=(3.30\pm 0.45\pm 0.32)\times 10^{-4}$ and $B(\phi\to\pi^+\pi^-)=(0.71\pm 0.11\pm 0.09)\times 10^{-4}$ were obtained., Comment: 5 pages, 4 figures, talk given at 8th International Conference on Hadron Spectroscopy (HADRON 99), Beijing, China, 24-28 Aug 1999

Published
1999
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21. Radiative decays of light vector mesons

Author

Achasov, M. N., Baru, S. E., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Kukartsev, G. A., Pakhtusova, E. V., Polunin, A. A., Popov, V. M., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Velikzhanin, Yu. S., Vasiljev, A. V., and Zakharov, A. S.

Subjects
High Energy Physics - Experiment
Abstract

The new data on $\rho,\omega,\phi$ radiative decays into $\pi^0\gamma,\eta\gamma,\eta'\gamma$ from SND experiment at VEPP-2M $e^+e^-$ collider are presented., Comment: 5 pages, 2 figures, talk given at 8th International Conference on Hadron Spectroscopy (HADRON 99), Beijing, China, 24-28 Aug 1999

Published
1999
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22. Spectroscopy at B-factories Using Hard Photon Emission

Author

Benayoun, M., Eidelman, S. I., Ivanchenko, V. N., and Silagadze, Z. K.

Subjects
High Energy Physics - Phenomenology
Abstract

The process of hard photon emission by initial electrons (positrons) at B-factories is discussed. It is shown that studies of the bottomonium spectroscopy will be feasible for the planned integrated luminosity of the B-factory experiments., Comment: 9 pages, Latex, 1 fugure, Submitted to Int.Jour.Mod.Phys. A

Published
1999
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23. New Data from SND Detector in Novosibirsk

Author

Achasov, M. N., Aulchenko, V. M., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Korostelev, M. S., Koshuba, S. V., Kukartsev, G. A., Pakhtusova, E. V., Popov, V. M., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Usov, Yu. V., Velikzhanin, Yu. S., Vasiljev, A. V., and Zakharov, A. S.

Subjects
High Energy Physics - Experiment
Abstract

The current status of experiments with SND detector at VEPP-2M e^+e^- collider in the energy range 2E_0=400-1400 MeV and recent results of data analysis for $\phi$, $\omega$ and $\rho$ decays and e^+e^- annihilation into hadrons are presented., Comment: 7 pages, 8 figures, Latex2e, uses espcrc1.sty. Talk given at 8th International Conference on Hadron Spectroscopy (HADRON 99), Beijing, China, 24-28 Aug 1999

Published
1999
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24. The process $e^+e^-\to\pi^+\pi^-\pi^0$ in the energy range 2E_0=1.04 - 1.38 GeV

Author

Achasov, M. N., Aulchenko, V. M., Baru, S. E., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Ivanov, P. M., Korol, A. A., Koshuba, S. V., Pakhtusova, E. V., Perevedentsev, E. A., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Usov, Y. V., Varganov, A. V., Vasilyev, A. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

In the experiment with the SND detector at VEPP-2M e^+e^- collider the process $e^+e^-\to\pi^+\pi^-\pi^0$ was studied in the energy range 2E_0 from 1.04 to 1.38 GeV. A broad peak was observed with the visible mass $M_{vis}=1220\pm 20$ MeV and cross section in the maximum $\sigma_0\simeq 4$ nb. The peak can be interpreted as a $\omega$-like resonance $\omega (1200)$., Comment: 10 pages LATEX and 5 figures

Published
1999
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25. Spherical Neutral Detector for VEPP-2M collider

Author

Achasov, M. N., Aulchenko, V. M., Baru, S. E., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Kukartsev, G. A., Pakhtusova, E. V., Popov, V. M., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Sidorov, V. A., Silagadze, Z. K., Usov, Yu. V., Vasiljev, A. V., Velikzhanin, Yu. S., and Zakharov, A. C.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The Spherical Neutral Detector (SND) operates at VEPP-2M collider in Novosibirsk studying e^+e^- annihilation in the energy range up to 1.4 GeV. Detector consists of a fine granulated spherical scintillation calorimeter with 1632 NaI(Tl) crystals, two cylindrical drift chambers with 10 layers of sense wires, and a muon system made of streamer tubes and plastic scintillation counters. The detector design, performance, data acquisition and processing are described., Comment: 30 pages LATEX and 24 figures

Published
1999
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26. Study of QED processes e+ e- --> e+ e- gamma, e+ e- gamma gamma with the SND detector at VEPP-2M

Author

Achasov, M. N., Baru, S. E., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Lysenko, A. P., Nesterenko, I. N., Pakhtusova, E. V., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., and Usov, Yu. V.

Subjects
High Energy Physics - Experiment
Abstract

Results of the SND experiment at the VEPP-2M e+ e- collider on the QED processes e+ e- --> e+ e- gamma and e+ e- --> e+ e- gamma gamma with production at large angles are presented. Energy and angular distributions of the final particles were studied. No deviations from QED with an accuracy of 3.8% for the first process and 10.3% for the second were found., Comment: 6 pages, 7 figures, 6 tables; to be published in EPJ-C; one figure replaced

Published
1999
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27. Medium energy calorimetry at SND: techniques and performances on physics

Author

Achasov, M. N., Aulchenko, V. M., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Kukartsev, G. A., Lysenko, A. P., Pakhtusova, E. V., Pyata, E. E., Salnikov, A. A., Shary, V. V., Serednyakov, S. I., Sidorov, V. A., Silagadze, Z. K., Usov, Yu. V., Valishev, A. A., Velikzhanin, Yu. S., and Zakharov, A. S.

Subjects
High Energy Physics - Experiment
Abstract

SND (Spherical Neutral Detector) is a general purpose nonmagnetic detector, successfully operating at Novosibirsk VEPP-2M collider during last four years in the center of mass energy range from 400 MeV up to 1400 MeV. Its crucial part is a 3-layer, fine grained, spherical NaI(Tl) electromagnetic calorimeter consisted of 1632 individual counters. Here we present a detailed description of the calorimeter and its performance, including such topics as calorimeter design, electronics, calibration, energy and spatial resolutions, particle identification. The calorimeter performance is illustrated by examples from the current studies of different physical processes., Comment: 23 pages, 20 figures, LaTeX. Contribution to Lisbon CALOR99 conference. To be published in the proceedings

Published
1999

28. Investigation of the $e^+e^- \to \omega \pi^0 \to \pi^0 \pi^0 \gamma$ reaction in the energy domain near the $\phi$-meson

Author

Achasov, M. N., Aulchenko, V. M., Berdyugin, A. V., Bozhenok, A. V., Bukin, D. A., Burdin, S. V., Dimova, T. V., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Pakhtusova, E. V., Salnikov, A. A., Shary, V. V., Serednyakov, S. I., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., and Valishev, A. A.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

The $e^+e^- \to \omega \pi^0 \to \pi^0 \pi^0 \gamma$ process was investigated in the SND experiment at the VEPP-2M collider. A narrow energy interval near the $\phi$-meson was scanned. The observed cross-section reveals, at the level of three standard deviation, the interference effect caused by $\phi \to \pi^0\pi^0\gamma$ decay. The cross-section parameters, as well as the real and imaginary parts of the $\phi$-meson related amplitude, were measured., Comment: 34 pages, 7 figures, LaTeX, uses FEYNMAN package. Erroneously reported C_{12} coefficient corrected (an error discovered in hep-ph/0603241). in the published version Nucl. Phys. B569(2000), 158 this coefficient is reported incorrectly

Published
1999
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29. Upper limit on the Ks ---> 3 pi0 decay

Author

Achasov, M. N., Aulchenko, V. M., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Nesterenko, I. N., Pakhtusova, E. V., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., and Usov, Yu. V.

Subjects
High Energy Physics - Experiment
Abstract

The search for CP-violating K_S\to3\pi^0 decay was performed with SND detector at VEPP-2M e^+e^- collider. The total amount of data corresponding to 7 million produced K_S mesons was analyzed. No candidate events were found, giving an upper limit of the decay branching ratio: Br(K_S\to3\pi^0) < 1.4\cdot10^{-5} at 90% confidence level., Comment: 6 pages, 4 figures, to be published in Physics Letters B

Published
1999
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30. Measurement of the decay phi->mu+mu-

Author

Achasov, M. N., Baru, S. E., Bozhenok, A. V., Bukin, D. A., Burdin, S. V., Dimova, T. V., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. I., Korol, A. A., Koshuba, S. V., Perevedentsev, E. A., Pyata, E. E., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., and Usov, Yu. V.

Subjects
High Energy Physics - Experiment
Abstract

The process e^+e^- ->mu^+mu^- has been studied with SND detector at VEPP-2M e^+e^- collider in the vicinity of phi(1020) resonance. The product of branching ratios of phi meson into leptons \sqrt{B(phi->mu^+mu^-) B(phi-> e^+e^-)}=(3.14+-0.22+-0.14)x10^{-4} was measured from the interference in the cross section of the process e^+e^- ->mu^+mu^-. The branching ratio B(phi->mu^+mu^-)=(3.30+-0.45+-0.32)x10^{-4} was obtained., Comment: 6 pages, 5 figures, to be published in Physics Letters B

Published
1999
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31. Radiative Decays, Nonet Symmetry and SU(3) Breaking

Author

Benayoun, M., DelBuono, L., Eidelman, S., Ivanchenko, V. N., and O'Connell, H. B.

Subjects
High Energy Physics - Phenomenology
Abstract

We re-examine the problem of simultaneously describing in a consistent way all radiative and leptonic decays of light mesons (V -> P gamma, P -> V gamma, P -> gamma gamma, V -> e^+ e^-). For this purpose, we rely on the Hidden Local Symmetry model in both its anomalous and non--anomalous sectors. We show that the SU(3) symmetry breaking scheme proposed by Bando, Kugo and Yamawaki, supplemented with nonet symmetry breaking in the pseudoscalar sector, allows one to reach a nice agreement with all data, except for the K^{*+/-} radiative decay. An extension of this breaking pattern allows one to account for this particular decay mode too. Considered together, the whole set of radiative decays provides a pseudoscalar mixing angle theta_P ~ -11^o and a value for theta_V which is ~ 3^o from that of ideal mixing. We also show that it is impossible, in a practical sense, to disentangle the effects of nonet symmetry breaking and those of glue inside the eta', using only light meson decays., Comment: 36 pages. Published version

Published
1999
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32. Observation of the decay PHI(1020)--->OMEGA+PI0

Author

Achasov, M. N., Baru, S. E., Berdyugin, A. V., Bozhenok, A. V., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Korostelev, M. S., Koshuba, S. V., Pakhtusova, E. V., Polunin, A. A., Pyata, E. E., Salnikov, A. A., Shary, V. V., Serednyakov, S. I., Shatunov, Yu. M., Sidorov, V. A., Skrinsky, A. N., Silagadze, Z. K., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

The reaction e^+e^- ---> OMEGA+PI0 ---> PI+PI- 2PI0 has been studied with SND detector at VEPP-2M e^+e^- collider in the vicinity of the PHI(1020) meson resonance. The observed interference pattern in the energy dependence of the cross section is consistent with existence of the decay PHI ---> OMEGA+PI0 with a branching ratio of B(PHI ---> OMEGA+PI0)=(4.8+1.9-1.7+-0.8)x10^{-5}. The real and imaginary parts of the decay amplitude were measured. The PHI ---> OMEGA+PI0 decay was observed for the first time., Comment: 6 pages, 5 figures, Will be published in Phys.Lett.B

Published
1999
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33. Experiments at VEPP-2M with SND detector

Author

Achasov, M. N., Aulchenko, V. M., Baru, S. E., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Ganushin, D. I., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Koop, I. A., Korol, A. A., Korostelev, M. S., Koshuba, S. V., Lysenko, A. P., Mamutkin, A. A., Nesterenko, I. N., Otboev, A. V., Pakhtusova, E. V., Perevedentsev, E. A., Polunin, A. A., Pyata, E. E., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Usov, Yu. V., Valishev, A. A., Varganov, A. V., Vasiljev, A. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

Short overview of experiments with SND detector at VEPP-2M e^+e^- collider in the energy range 2E = 400 - 1400 MeV and preliminary results of data analysis are presented., Comment: 68 pages, 63 figures

Published
1998

34. Evidence of the PHI(1020)--->ETA+PI0+GAMMA Decay

Author

Achasov, M. N., Aulchenko, V. M., Baru, S. E., Berdyugin, A. V., Bukin, A. V. Bozhenok A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinski, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. M., Korol, A. A., Koshuba, S. V., Lysenko, A. P., Pakhtusova, E. V., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., and Usov, Yu. V.

Subjects
High Energy Physics - Experiment
Abstract

Signal of the rare radiative decay PHI--->ETA+PI0+GAMMA was observed in the SND experiment at VEPP-2M electron-positron collider.The result is based on the analysis of data, corresponding to a total integrated luminosity of 4 pb^{-1}, or 8x10^6 PHI mesons produced. The measured branching ratio of PHI--->ETA+PI0+GAMMA decay is equal to (0.83+-0.23)x10^{-4}.

Published
1998
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35. Experimental study of the decay PHI(1020)--->ETA+GAMMA in multi-photon final state

Author

Achasov, M. N., Baru, S. E., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Nesterenko, I. N., Pakhtusova, E. V., Polunin, A. A., Pyata, E. E., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

In the SND experiment at VEPP-2M e^+e^- collider the phi(1020) ---> eta+gamma ---> 3pi^0+gamma decay was studied. The branching ratio B(phi--->eta+gamma) = (1.246 +- 0.025 +- 0.057)% was measured., Comment: 4 pages, 1 figure, 1 table, Submitted to JETP Lett

Published
1998
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36. First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay

Author

Achasov, M. N., Aulchenko, V. M., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Pakhtusova, E. V., Perevedentsev, E. A., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Usov, Yu. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

In the SND experiment at the VEPP-2M electron-positron collider the PHI(1020)--->PI0+PI0+GAMMA decay was studied. The branching ratio B(PHI--->PI0+PI0+GAMMA)=(1.14+-0.10+-0.12)x10^{-4} was measured. It was shown, that the F0(980)GAMMA mechanism dominates in this decay and the 4-quark model of F0(980) describes our data most consistently., Comment: 6 pages, 6 figures, 1 table, Will be published in Phys.Lett.B

Published
1998
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37. Energy calibration of the NaI(Tl) calorimeter of the SND detector using $e^+e^- \to e^+e^-$ events

Author

Achasov, M. N., Bukin, D. A., Dimova, T. V., Druzhinin, V. P., Golubev, V. B., Ivanchenko, V. N., and Korol, A. A.

Subjects
Physics - Instrumentation and Detectors
Abstract

Calibration of the three layer NaI(Tl) spherical calorimeter of the SND detector using electron -- positron scattering events is described. Energy resolution of $5 % (FWHM/2.36)$ for 500 MeV photons was achieved., Comment: 12 pages, Latex, 8 figures (.EPS)

Published
1998
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38. Energy calibration of the NaI(Tl) calorimeter of the SND detector using cosmic muons

Author

Achasov, M. N., Bukin, A. D., Bukin, D. A., Druzhinin, V. P., Golubev, V. B., Ivanchenko, V. N., Koshuba, S. V., and Serednyakov, S. I.

Subjects
Physics - Instrumentation and Detectors
Abstract

The general purpose spherical nonmagnetic detector (SND) is now taking data at VEPP-2M $e^+e^-$ collider in BINP (Novosibirsk) in the centre of mass energy range of $0.2 \div 1.4$ GeV. The energy calibration of the NaI(Tl) calorimeter of the SND detector with cosmic muons is described. Using this method, the energy resolution of $5.5 % (\sigma)$ for 500 MeV photons was achieved., Comment: 15 pages, Latex, 11 figures (.EPS)

Published
1998
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39. Study of $\Delta(1232)$ isobar electroproduction at VEPP-2M $e^+e^-$ collider

Author

Achasov, M. N., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Lysenko, A. P., Pakhtusova, E. V., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Serednyakov, S. I., Valishev, A. A., and Usov, Yu. V.

Subjects
High Energy Physics - Experiment
Abstract

Results from the Spherical Nonmagnetic Detector (SND) on $\Delta (1232)$ isobar electroproduction in the collisions of beam electrons (positrons) and residual gas nuclei in the VEPP-2M $e^+e^-$ collider are presented. On the basis of the obtained data the expected counting rate of this process in future high luminosity $e^+e^-$ colliders (~$\phi$-, $c$-$\tau$- and $b$-factories) was estimated., Comment: 7 pages LATEX and 3 figures

Published
1998
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40. Upper limit on the eta -> pi^0 pi^0 decay

Author

Achasov, M. N., Berdyugin, A. V., Bozhenok, A. V., Bukin, D. A., Burdin, S. V., Dimova, T. V., Dolinskii, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Nesterenko, I. N., Pakhtusova, E. V., Perevedentsev, E. A., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

Upper bound 6*10^{-4} with 90% confidence is reported for the eta -> pi^0 pi^0 decay from the SND experiment at the VEPP-2M collider., Comment: 6 pages, LaTex, 1 figure. To appear in Phys. Lett. B

Published
1998
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41. Evidence of phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays in SND experiment at VEPP-2M

Author

Achasov, M. N., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Dimova, T. V., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Pakhtusova, E. V., Salnikov, A. A., Serednyakov, S. I., Shary, V. V., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., and Usov, Yu. V.

Subjects
High Energy Physics - Experiment
Abstract

Preliminary results on the study of e+e- --> phi(1020) --> pi0 pi0 gamma, eta pi0 gamma processes from SND experiment at VEPP-2M collider in Novosibirsk are presented. Branching ratios of rare radiative phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays are measured: B(phi --> pi0 pi0 gamma ) = (1.1 +- 0.2) * 10^-4 (invariant mass (pi0 pi0) < 800 MeV), B(phi --> eta pi0 gamma ) = (1.3 +- 0.5) * 10^-4., Comment: Talk at the HADRON97 conference, BNL, Aug 24-30 1997; LaTeX, 4 pages, 4 eps figures

Published
1997
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42. First Physical Results from SND Detector at VEPP-2M

Author

Achasov, M. N., Bek, M. G., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Danilov, V. V., Dimova, T. V., Dolinsky, S. I., Druzhinin, V. P., Dubrovin, M. S., Gaponenko, I. A., Golubev, V. B., Ivanchenko, V. N., Ivanov, P. I., Koop, I. A., Korol, A. A., Korostelev, M. S., Koshuba, S. V., Lysenko, A. P., Mamutkin, A. A., Nesterenko, I. N., Pakhtusova, E. V., Perevedentsev, E. A., Polunin, A. A., Pozdeev, E. G., Ptitsyn, V. I., Pyata, E. E., Salnikov, A. A., Savchkov, A. V., Shary, V. V., Serednyakov, S. I., Shatunov, Yu. M., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Usov, Yu. V., Valishev, A. A., Varganov, A. V., Vasiljev, A. V., and Velikzhanin, Yu. S.

Subjects
High Energy Physics - Experiment
Abstract

The paper describes experiments with the SND detector at VEPP-2M collider, carried out during the period from October 1995 until June 1997. The total integrated luminosity of 6.4 pb^{-1} was collected in the energy range 2E=0.4-1.4 GeV (MHAD97 experiment), corresponding to 4*10^5 mu^+ mu^- pairs produced. Preliminary results of the 1996 phi-meson experiment (FI96) are presented. The total number of phi-mesons produced is 4*10^6. New data on rare decays of phi and eta (550) mesons, in particular B(phi -> eta gamma) = (1.30+-0.06+-0.07)%, B(phi -> pi^0 pi^0 gamma) = (1.1+-0.2)*10^{-4}, (M_{pi^0 pi^0} > 800 MeV), B(phi -> f^0 gamma) = (4.7+-1.0)*10^{-4}, B(phi -> eta pi^0 gamma) = (1.3+-0.5)*10^{-4}, B(phi -> eta' gamma) < 1.7*10^{-4}, B(phi -> 2 pi^0 ) < 6*10^{-4} were obtained., Comment: 49 pages, LaTeX, 31 eps-figures

Published
1997

47. Analysis of e + e −→π+π−π+π− and e + e −→π+π−π0π0 processes in the energy range of $$\sqrt 2 = 0.98 - 1.38 GeV$$ in experiments with a spherical neutral detector

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, D. A., Valishev, A. A., Vasiljev, A. V., Golubev, V. B., Dimova, T. V., Druzhinin, V. P., Ivanchenko, V. N., Korol, A. A., Koshuba, S. V., Nesterenko, I. N., Pakhtusova, E. V., Perevedentsev, E. A., Pyata, E. A., Salnikov, A. A., Skrinsky, A. N., Serednyakov, S. I., Silagadze, Z. K., Shary, V. V., and Shatunov, Yu. M.

Published
2003
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48. The process e + e − → ωπ0 near the Φ resonance

Author

Aulchenko, V. M., Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Vasiljev, A. V., Gaponenko, I. A., Golubev, V. B., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Dubrovin, M. S., Ivanov, P. M., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Kukartsev, G. A., Lysenko, A. P., Otboev, A. V., Pakhtusova, E. V., Salnikov, A. A., Serednyakov, S. I., Sidorov, V. A., Silagadze, Z. K., Skrinsky, A. N., Shary, V. V., and Shatunov, Yu. M.

Published
2000
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49. The e + e −→π0π0γ process below 1.0 GeV

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Vasil’ev, A. V., Ganyushin, D. I., Golubev, V. B., Dimova, T. V., Drozdetskii, A. A., Druzhinin, V. P., Ivanov, P. M., Ivanchenko, V. N., Korol’, A. A., Korostelev, M. S., Koshuba, S. V., Kukartsev, G. A., Pakhtusova, E. V., Polunin, A. A., Pyata, E. É., Sal’nikov, A. A., Serednyakov, S. I., Sidorov, V. A., Silagadze, Z. K., Sharyi, V. V., and Shatunov, Yu. M.

Published
2000
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50. Measurement of the relative probability of φ →ηγ decay in the η → π +π−π0 channel

Author

Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bukin, A. D., Bukin, D. A., Burdin, S. V., Vasil’ev, A. V., Ganyushin, D. I., Gaponenko, I. A., Golubev, V. B., Dimova, T. V., Dolinskii, S. I., Druzhinin, V. P., Dubrovin, M. S., Zakharov, A. S., Ivanchenko, V. N., Ivanov, P. M., Korol’, A. A., Koshuba, S. V., Kukhartsev, G. A., Mamutkin, A. A., Otboev, A. V., Pakhtusova, E. V., Sal’nikov, A. A., Serednyakov, S. I., Sidorov, V. A., Silagadze, Z. K., Sharyi, V. V., and Shatunov, Yu. M.

Published
2000
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