New crystal ball results from BNL (CROSBI ID 81410)
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Podaci o odgovornosti
Tippens, W.B. ; Bagga, R. ; Draper, B. ; Huddelson, J. ; Isenhower, L.D. ; Mulkey, Z. ; Sadler, M.E. ; Kasprzyk, T. ; Spinka, H. ; Comfort, J. ; Craig, K. ; Ramirez, A. ; Kycia, T. ; Clajus, M. ; Marušić, Aljoša ; McDonald, S. ; Nefkens, B.M.K. ; Peterson, J. ; Briscoe, W. ; Shafti, A. ; Staudemmaier, H. ; Manley, D.M. ; Abaev, V. ; Bekrenev, V. ; Kozlenko, N. ; Kruglov, S. ; Lopatin, I. ; Starostin, A. ; Knecht, N. ; Lolos, G. ; Papandreu, Z. ; Šlaus, Ivo ; Supek, Ivan ; Gibson, A. ; Grosnick, D. ; Koetke, D.D. ; Manweiler, R. ; Nord, P. ; Stanislaus, S.
engleski
New crystal ball results from BNL
The SLAC Crystal Ball (CB) detector was recently installed on the C6 beamline at the AGS. A two week engineering run and a two week data run looking at all neutral final states from pi^p interactions were completed in the spring of 1997. This marks the beginning of a new diverse program in baryon spectroscopy at BNL. Some of its goals are to improve the determination of the masses, widths and decay modes of baryon resonances in the region E_cm below 2150 MeV/c, to search for possible exotic states such as pentaquarks and hybrids, to determine meson-nucleon scattering lengths such as eta-n, eta-Lambda, and eta-Sigma for example, and to measure inverse photoproduction of K^- mesons from the unstable Lambda and Sigma hyperons. A description of the experimental setup and performance of the detector is given along with some preliminary results from the data run.
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