A preliminary final state analysis of a sample of in-flight annihilations into three and five charged pions is presented. The partial-wave analysis of three-prong data confirms previous interpretations of the resonance, from 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 momenta, the five-prong data show some evidence for a possible spin 2 state at 1640 MeV/c2 decaying in ρ°ρ°.

New results on meson spectroscopy from Obelix

MARGAGLIOTTI, GIACOMO;TESSARO, SUSANNA;
1993

Abstract

A preliminary final state analysis of a sample of in-flight annihilations into three and five charged pions is presented. The partial-wave analysis of three-prong data confirms previous interpretations of the resonance, from 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 momenta, the five-prong data show some evidence for a possible spin 2 state at 1640 MeV/c2 decaying in ρ°ρ°.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2714881
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 33
  • ???jsp.display-item.citation.isi??? 42
social impact