Report number
| hep-ex/0405042 |
Title
| Search for the exotic Ξ−−(1860) Resonance in 340GeV/c Σ−-Nucleus Interactions |
Author(s)
|
Adamovich, M.I. ; Alexandrov, Yu.A. ; Baranov, S.P. ; Barberis, D. ; Beck, M. ; Berat, C. ; Beusch, W. ; Boss, M. ; Brons, S. ; Bruckner, W. ; Buenerd, M. ; Busch, C. ; Buscher, C. ; Charignon, F. ; Chauvin, J. ; Chudakov, E.A. ; Dersch, U. ; Dropmann, F. ; Engelfried, J. ; Faller, F. ; Fournier, A. ; Gerassimov, S.G. ; Godbersen, M. ; Grafstrom, P. ; Haller, Th. ; Heidrich, M. ; Hubbard, E. ; Hurst, R.B. ; Konigsmann, Kay ; Konorov, I. ; Keller, N. ; Martens, K. ; Martin, Ph. ; Masciocchi, S. ; Michaels, R. ; Muller, U. ; Neeb, H. ; Newbold, D. ; Newsom, C. ; Paul, S. ; Pochodzalla, J. ; Potashnikova, I. ; Povh, B. ; Ransome, R. ; Ren, Z. ; Rey-Campagnolle, M. ; Rosner, G. ; Rossi, L. ; Rudolph, H. ; Scheel, C. ; Schmitt, L. ; Siebert, H.-W. ; Simon, A. ; Smith, V.J. ; Thilmann, O. ; Trombini, A. ; Vesin, E. ; Volkemer, B. ; Vorwalter, K. ; Walcher, Th. ; Walder, G. ; Werding, R. ; Wittmann, E. ; Zavertyaev, M.V. WA89 Collaboration Afficher les 64 auteurs |
Affiliation
| (CERN) |
Publication
| 2004 |
Imprint
| 2004 |
Number of pages
| 5 |
Note
| 5 pages, 4 figures, modification of ref. 43 and 44 |
In:
| Phys. Rev. C 70 (2004) 022201 |
DOI
| 10.1103/PhysRevC.70.022201
|
Subject category
| Particle Physics - Experiment ; Nuclear Physics |
Accelerator/Facility, Experiment
| CERN SPS ; WA89 |
Abstract
| We report on a high statistics search for the Ξ−−(1860) resonance in Σ−-nucleus collisions at 340GeV/c. No evidence for this resonance is found in our data sample which contains 676000 Ξ− candidates above background. For the decay channel Ξ−−(1860)→Ξ−π− and the kinematic range 0.15<xF<0.9 we find a 3σ upper limit for the production cross section of 3.1 and 3.5 μb per nucleon for reactions with carbon and copper, respectively. |