Analysis of the 33-133-133-1final state in photon-photon collisions

Autor: S. Lowe, M. Reidenbach, D. Besset, D. Antreasyan, A. M. Cartacci, G. Glaser, A. C. König, R. Cowan, Grzegorz Nowak, C. W. Peck, F. H. Heinsius, B. Lurz, H. W. Bartels, P. McBride, B. Renger, G. Conforto, U. Volland, G.L. Godfrey, P. Ratoff, H. Marsiske, K. Wachs, R. T. Van de Walle, G. Landi, K. Wacker, P. Schmitt, J. Irion, W. Lockman, H. Meyer, W. Koch, D. Gelphman, J. Schütte, H. J. Trost, S. Krüger, K. Graaf, T. Kiel, C. Rippich, S. Leffler, P. G. Pelfer, Elliott D. Bloom, V. Stock, H. Wegener, Andrea Bizzeti, F. Messing, D. Sievers, B. Pollock, D. A. Williams, J. Gaiser, M. Cavalli-Sforza, M. Kobel, Hans J. Vogel, H. Janssen, A. M. Litke, R. Cabenda, A. Engler, B. Monteleoni, Z. Jakubowski, R. Hofstadter, H. Kilian, A. Schwarz, R. W. Kraemer, S. Keh, B. Niczyporul, B. Muryn, A. Voigt, T. Koiber, K. Fairfield, W. Maschmann, S. Cooper, I. Kirkbride, D. Marlow, R. Clare, Tomasz Skwarnicki, F. C. Porter, F. H. Heimlich, D. Prindle, K. Brockmüller, A. Fridman, B. van Uitert, J. Tompkins, U. Strohbusch, J. Schotanus, A. Compagnucci, Ch Bieler, K. Strauch, I. C. Brock, R. Lekebusch, G. Folger, W. J. Metzger, S. Lee, K. Königsmann, D. G. Coyne, K. Karch, R. Nernst, W. Walk, P. Zschorsch, T. Lesiak, J. K. Bienlein, M. Scheer

Publikováno v: Zeitschrift für Physik C Particles and Fields. 54:33-44

The reactione + e - →e + e - ηπ0π0→e + e - 6γ has been analysed using the full data sample taken with the Crystal Ball detector at the DORIS II storage ring at DESY. The ηπ0π0 invariant mass spectrum is dominated by the η', for which we d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1eafba5b23f3b3b68887b527d6637c9f
https://doi.org/10.1007/bf01881706

First observation of the reactionγγ→π 2→π 0 π 0 π 0

Autor: I. Brock, C. h. Bieler, D. Besset, H. W. Bartels, Andrea Bizzeti, R. Cabenda, E. D. Bloom, K. Brockmüller, J. K. Bienlein, D. Antreasyan

Publikováno v: Zeitschrift für Physik C Particles and Fields. 48:561-568

The Crystal Ball detector has been used at the DORIS II storage ring at DESY to study the reactionγγ→π0π0π0 in theπ0π0π0 invariant mass range from 850 MeV/c2 to 2600 MeV/c2. An enhancement around 1750 MeV/c2 is attributed to theπ2(1670) re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa9548b062aca7f2325b9213fd7adeec
https://doi.org/10.1007/bf01614689

Measurement ofπ0π0production in two-photon collisions

Autor: M. Reidenbach, M. Cavalli-Sforza, Z. Jakubowski, H. Meyer, H. J. Trost, Grzegorz Nowak, D. Sievers, W. Koch, K. Wacker, U. Volland, S. Leffler, P. G. Pelfer, Ch Bieler, D. Besset, A. M. Cartacci, G. Glaser, A. C. König, H. Wegener, A. Engler, P. Schmitt, J. Schotanus, A. Compagnucci, K. Strauch, K. Wachs, H. Kilian, Elliott D. Bloom, F. H. Heinsius, B. Monteleoni, D. Antreasyan, I. Kirkbride, B. Renger, S. Lowe, R. Lekebusch, M. Scheer, F. H. Heimlich, R. Cowan, K. Brockmüller, C. W. Peck, H. Janssen, A. M. Litke, C. Rippich, P. Ratoff, A. Voigt, G. Conforto, K. Graaf, G.L. Godfrey, B. van Uitert, S. Cooper, J. Irion, W. Lockman, R. T. Van de Walle, D. G. Coyne, Tomasz Skwarnicki, H. W. Bartels, D. Prindle, S. Keh, K. Fairfield, V. Stock, F. Messing, H. Marsiske, W. Maschmann, T. Kloiber, R. Hofstadter, R. Clare, Andrea Bizzeti, K. Karch, Hans J. Vogel, A. Fridman, S. Krüger, T. Kiel, J. K. Bienlein, R. Lee, B. Pollock, U. Strohbusch, D. A. Williams, D. Gelphman, R. Nernst, J. Tompkins, D. Marlow, D. Gaiser, W. J. Metzger, B. Muryn, I. C. Brock, J. Schütte, B. Lurz, B. Niczyporuk, P. Zschorsch, W. Walk, P. McBride, M. Kobel, A. Schwarz, G. Folger, K. Königsmann, G. Landi, F. C. Porter, R. Cabenda, R. W. Kraemer

Publikováno v: Physical Review D. 41:3324-3335

The reaction ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{e}^{+}{e}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ has been analyzed using 97 ${\mathrm{pb}}^{\ensuremath{-}1}$ of data taken with the Crystal Ball detector at the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33da7e5b80ace0ab4bcf4f00c2c07ede
https://doi.org/10.1103/physrevd.41.3324

χbstates in exclusive radiative decay of the Υ(2S)

Autor: U. Volland, C. Newman-Holmes, P. N. Ratoff, F. H. Heimlich, B. Niczyporuk, David R. Williams, D. Gelphman, J. Schotanus, K. Strauch, M. Schmitz, R. Lekebusch, Z. Jakubowski, R. Cabenda, G. Folger, S. Leffler, P. G. Pelfer, R. Hofstadter, H. Wegener, R. Nernst, J. K. Bienlein, S. Lowe, S. Cooper, K. Königsmann, Robert Clare, R. W. Kraemer, B. Monteleoni, R. Cowan, G.L. Godfrey, I. Kirkbride, K. Wacker, R. T. Van de Walle, P. Schmitt, D. G. Aschman, W. J. Metzger, J. Gaiser, H. J. Trost, Elliott D. Bloom, W. S. Lockman, D. Sievers, B. Lurz, Hans J. Vogel, W. Koch, A. Schwarz, C. A. Edwards, P. Zschorsch, W. Walk, Matteo Cavalli-Sforza, M. Scheer, A. Fridman, F. C. Porter, D. Antreasyan, D. C. Coyne, F. Messing, T. Kloiber, C. W. Peck, G. Conforto, Tomasz Skwarnicki, Raymond Lee, S. Keh, W. Maschmann, Daniel Robert Marlow, J. Irion, J. Tompkins, P. Lezoch, U. Strohbusch, T. Matsui, A. Engler, H. Kilian, I. C. Brock, D. Besset, A. M. Cartacci, A. C. König, Alan Litke, B. Renger, B. Pollock, D. Prindle, C. Rippich, Grzegorz Nowak

Publikováno v: Physical Review D. 34:2611-2620

The Crystal Ball detector at the DESY storage ring DORIS II has been used to study radiative decays of the \ensuremath{\Upsilon}(2S) resonance. We report on the analysis of the exclusive channel \ensuremath{\Upsilon}(2S)\ensuremath{\rightarrow}\ensur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e12ca38a7c266a81990b37f0a5cb576d
https://doi.org/10.1103/physrevd.34.2611

Observation of Three Upsilon States

Autor: H. Kooy, W. Metcalf, J. Mueller, G. C. Moneti, A. Chen, J. Haggerty, F. Sannes, D. Bechis, E. H. Thorndike, G. K. Chang, Steve Peggs, P. Skubic, F. M. Pipkin, F. Lobkowicz, D. Weber, M. Herzlinger, R. Ehrlich, Robert Stone, W. A. Loomis, B. Gibbard, J. W. Dewire, H. G. Thonemann, N. Horowitz, G. Rucinski, A. Silverman, D. L. Bridges, Karl Berkelman, Joseph Izen, D. G. Cassel, Murdock Gilchriese, B. Gittelman, Richard Talman, M. S. Alam, P. Lariccia, P. Ganci, Richard Wilson, D. Herrup, N. B. Mistry, D. Larson, A. Brody, S. L. Olsen, T. Gentile, E. Nordberg, K. A. Shinsky, P. C. Stein, S. E. Csorna, G. Warren, D. L. Kreinick, K. Chadwick, R. S. Panvini, R. Whitman, J. S. Poucher, R. Plunkett, A. J. Sadoff, R. V. Kline, C. J. Bebek, T. Ferguson, Sheldon Stone, Ron Poling, Harris Kagan, J. Seeman, D. Andrews, W. Tanenbaum, M. Billing, C. Rosenfeld, M. Goldberg, D. L. Hartill, R. Perchonok, J. Kandaswamy, D. Potter, R. Imlay, R. H. Siemann, R. Cabenda

Publikováno v: Physical Review Letters. 44:1108-1111

Three narrow resonances have been observed in e/sup +/e/sup -/ annihilation into hadrons at total energies between 9.4 and 10.4 GeV. Measurements of mass spacings and ratios of lepton pair widths support the interpretation of these ''UPSILON'' states

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2996a6891d6324f62d6a7da8b303556e
https://doi.org/10.1103/physrevlett.44.1108