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New results on meson spectroscopy from Obelix

  • A. Adamo
  • , M. Agnello
  • , F. Balestra
  • , G. Bendiscioli
  • , A. Bertin
  • , P. Boccaccio
  • , G. C. Bonazzola
  • , T. Bressani
  • , M. Bruschi
  • , M. P. Bussa
  • , L. Busso
  • , D. Calvo
  • , M. Capponi
  • , B. Cereda
  • , P. Cerello
  • , C. Cicaló
  • , S. Costa
  • , S. De Castro
  • , F. D. Isep
  • , L. Fava
  • A. Feliciello, L. Ferrero, A. Filippi, V. Filippini, D. Galli, R. Garfagnini, U. Gastaldi, B. Giacobbe, P. Gianotti, A. Grasso, C. Guaraldo, F. Iazzi, A. Lanaro, E. Lodi Rizzini, M. Lombardi, V. Lucherini, A. Maggiora, S. Marcello, U. Marconi, G. V. Margagliotti, G. Maron, A. Masoni, I. Massa, B. Minetti, P. Montagna, M. Morando, F. Nichitiu, D. Panzieri, G. Pauli, M. Piccinini, G. Piragino, M. Poli, G. Puddu, R. A. Ricci, E. Rossetto, A. Rotondi, A. M. Rozhdestvensky, P. Salvini, L. Santi, M. G. Sapozhnikov, N. Semprini Cesari, S. Serci, P. Temnikov, S. Tessaro, F. Tosello, V. L. Trelyak, G. Usai, L. Vannucci, S. Vecchi, G. Vedovato, L. Venturelli, M. Villa, A. Vitale, A. Zenoni, A. Zoccoli, G. Zosi

Research output: Contribution to journalArticlepeer-review

Abstract

A preliminary final state analysis of a sample of np in-flight annihilations into three and five charged pions is presented. The partial-wave analysis of three-prong data confirms previous interpretations of the Ax f{hook}2(1520) resonance, from pp annihilations at rest. Concerning five-prong events our analysis favours spin 0 for the already reported ζ(1480) state, but more refined calculations are underway. At high n momenta, the five-prong data show some evidence for a possible spin 2 state at 1640 MeV/c2 decaying in ρ°ρ°.

Original languageEnglish
Pages (from-to)13-26
Number of pages14
JournalNuclear Physics A
Volume558
Issue numberC
DOIs
Publication statusPublished - 7 Jun 1993
Externally publishedYes

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