Search for the pentaquark candidateΘ(1540)+in the hyperon beam experiment WA89

Autor: J. Pochodzalla, V. Smith, W. Bruckner, C. Newsom, G. Rosner, H. W. Siebert, T. Walcher, R. Ransome, U. Muller, M. Boss, M. Beck, G. Walder, C. Busch, L. Schmitt, H. Rudolph, N. Keller, P. Martin, K. Konigsmann, E. Vesin, Jürgen Engelfried, E. A. Chudakovc, I. Konorov, M. Godbersen, H. Neeb, L. Rossi, D. Barberis, R. Werding, F. Faller, J. Chauvin, K. Vorwalter, U. Dersch, M. Rey-Campagnolle, I. K. Potashnikova, E. Wittmann, Bogdan Povh, K. Martens, R. B. Hurst, B. Volkemer, W. Beusch, F. Charignon, E. Hubbard, C. Berat, R. Michaels, O. Thilmann, M. Buenerd, D. Newbold, Y. A. Alexandrov, A. Trombini, M. I. Adamovich, C. Scheel, A. Fournier, M. Heidrich, C. Buscher, S. G. Gerassimov, S. Masciocchi, T. Haller, Z. Ren, S. Brons, A. Simon, F. Dropmann, S. P. Baranov, S. Paul, Mikhail Zavertyaev, P. Grafstrom
Rok vydání: 2005
Předmět:
Zdroj: Physical Review C. 72
ISSN: 1089-490X
0556-2813
DOI: 10.1103/physrevc.72.055201
Popis: We report on a high-statistics search for the {theta}(1540){sup +} resonance in {sigma}{sup -}-nucleus collisions at 340 GeV/c. No evidence for this resonance was found in our data sample which contains 13 million K{sub s}{sup 0}{yields}{pi}{sup +}{pi}{sup -} decays above background. For the decay channel {theta}{sup +}{yields}K{sub s}{sup 0}p and the kinematic range x{sub F}> 0.05, we find the production cross section to be BR({theta}{sup +}{yields}K{sub s}{sup 0}p){sigma}{sub 0}
Databáze: OpenAIRE