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Determination of $\pi\pi$ scattering lengths from measurement of $\pi^+\pi^-$ atom lifetime

Autor: Adeva, B., Afanasyev, L., Benayoun, M., Benelli, A., Berka, Z., Brekhovskikh, V., Caragheorgheopol, G., Cechak, T., Chiba, M., Chliapnikov, P. V., Ciocarlan, C., Constantinescu, S., Costantini, S., Curceanu, C., Doskarova, P., Dreossi, D., Drijard, D., Dudarev, A., Ferro-Luzzi, M., Pazos, J. L. Fungueiriño, Torreira, M. Gallas, Gerndt, J., Gianotti, P., Goldin, D., Gomez, F., Gorin, A., Gorchakov, O., Guaraldo, C., Gugiu, M., Hansroul, M., Hons, Z., Hosek, R., Iliescu, M., Karpukhin, V., Kluson, J., Kobayashi, M., Kokkas, P., Komarov, V., Kruglov, V., Kruglova, L., Kulikov, A., Kuptsov, A., Kuroda, K. I., Lamberto, A., Lanaro, A., Lapshin, V., Lednicky, R., Leruste, P., Sandri, P. Levi, Aguera, A. Lopez, Lucherini, V., Maki, T., Manuilov, I., Marin, J., Narjoux, J. L., Nemenov, L., Nikitin, M., Pardo, T. Nunez, Okada, K., Olchevskii, V., Pazos, A., Pentia, M., Penzo, A., Perreau, J. M., Plo, M., Ponta, T., Rappazzo, G. F., Riazantsev, A., Rodriguez, J. M., Fernandez, A. Rodriguez, Vidal, A. Romero, Ronjin, V. M., Rykalin, V., Saborido, J., Santamarina, C., Schacher, J., Schuetz, C., Sidorov, A., Smolik, J., Takeutchi, F., Tarasov, A., Tauscher, L., Tobar, M. J., Trojek, T., Trusov, S., Utkin, V., Doce, O. Vázquez, Vlachos, S., Voskresenskaya, O., Vrba, T., Willmott, C., Yazkov, V., Yoshimura, Y., Zhabitsky, M., Zrelov, P.

Publikováno v: Physics Letters B 704 (2011) 24

The DIRAC experiment at CERN has achieved a sizeable production of $\pi^+\pi^-$ atoms and has significantly improved the precision on its lifetime determination. From a sample of 21227 atomic pairs, a 4% measurement of the S-wave $\pi\pi$ scattering

Externí odkaz: http://arxiv.org/abs/1109.0569

HERA and the LHC - A workshop on the implications of HERA for LHC physics: Proceedings - Part A

Autor: Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., Avati, V., Baines, J., Ball, R. D., Banfi, A., Baranov, S. P., Bartels, J., Behnke, O., Bellan, R., Blumlein, J., Bottcher, H., Bolognesi, S., Boonekamp, M., Bourilkov, D., Bracinik, J., Bruni, A., Bruni, G., Buckley, A., Bunyatyan, A., Buttar, C. M., Butterworth, J. M., Butterworth, S., Cacciari, M., Carli, T., Cerminara, G., Chekanov, S., Ciafaloni, M., Colferai, D., Collins, J., Cooper-Sarkar, A., Corcella, G., Corradi, M., Cox, B. E., Croft, R., Czyczula, Z., Dainese, A., Dasgupta, M., Davatz, G., Del Debbio, L., Delenda, Y., De Roeck, A., Diehl, M., Diglio, S., Dissertori, G., Dittmar, M., Ellis, J., Eskola, K. J., Eynck, T. O., Feltesse, J., Ferro, F., Field, R. D., Forshaw, J., Forte, S., Geiser, A., Gieseke, S., Glazov, A., Gleisberg, T., Golonka, P., Gotsman, E., Grindhammer, G., Grothe, M., Group, C., Groys, M., Guffanti, A., Gustafson, G., Gwenlan, C., Hoche, S., Hogg, C., Huston, J., Iacobucci, G., Ingelman, G., Jadach, S., Jung, H., Kalliopuska, J., Kapishin, M., Kersevan, B., Khoze, V., Klasen, M., Klein, M., Kniehl, B. A., Kolhinen, V. J., Kowalski, H., Kramer, G., Krauss, F., Kretzer, S., Kutak, K., Lamsa, J. W., Lonnblad, L., Lastovicka, T., Lastovicka-Medin, G., Laenen, E., Lagouri, Th., Latorre, J. I., Lavesson, N., Lendermann, V., Levin, E., Levy, A., Lipatov, A. V., Lublinsky, M., Lytkin, L., Maki, T., Magnea, L., Maltoni, F., Mangano, M., Maor, U., Mariotti, C., Marola, N., Martin, A. D., Meyer, A., Moch, S., Monk, J., Moraes, A., Morsch, A., Motyka, L., Naftali, E., Newman, P., Nikitenko, A., Oljemark, F., Orava, R., Ottela, M., Osterberg, K., Peters, K., Petrucci, F., Piccione, A., Pilkington, A., Piotrzkowski, K., Piskounova, O. I., Proskuryakov, A., Prygarin, A., Pumplin, J., Rabbertz, K., Ranieri, R., Ravindran, V., Reisert, B., Richter-Was, E., Rinaldi, L., Robbe, P., Rodrigues, E., Rojo, J., Ruiz, H., Ruspa, M., Ryskin, M. G., Vera, A. Sabio, Salam, G. P., Schalicke, A., Schatzel, S., Schorner-Sadenius, T., Schienbein, I., Schilling, F-P., Schumann, S., Seymour, M. H., Siegert, F., Sjostrand, T., Skrzypek, M., Smith, J., Smizanska, M., Spiesberger, H., Schrempp, F., Stasto, A., Stenzel, H., Stirling, W. J., Szczypka, P., Tapprogge, S., Targett-Adams, C., Tasevsky, M., Teubner, T., Thorne, R. S., Tonazzo, A., Tricoli, A., Tuning, N., Turnau, J., Uwer, U., Van Mechelen, P., Venugopalan, R., Verducci, M., Vermaseren, J. A. M., Vogt, A., Vogt, R., Ward, B. F. L., Was, Z., Watt, G., Waugh, B. M., Weiser, C., Whalley, M. R., Wing, M., Winter, J., Yost, S. A., Zanderighi, G., Zotov, N. P.

The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to increase the total integrated luminosity per experiment to

Externí odkaz: http://arxiv.org/abs/hep-ph/0601012

Probing the DeltaNN component of 3He

Autor: Huber, G. M., Lolos, G. J., Brash, E. J., Dumalski, S., Farzanpay, F., Iurescu, M., Papandreou, Z., Shinozaki, A., Weinerman, A., Emura, T., Hirosawa, H., Niwa, K., Yamashita, H., Maeda, K., Terasawa, T., Yamazaki, H., Endo, S., Miyamoto, K., Sumi, Y., Garino, G., Maruyama, K., Leone, A., Perrino, R., Maki, T., Sasaki, A., Wada, Y.

Publikováno v: Phys.Rev. C62 (2000) 044001

The 3He(gamma,pi^+/- p) reactions were measured simultaneously over a tagged photon energy range of 800