The pi+pi−pi0, K+K−pi0 and K±K0pi∓ final states produced by pbar-p annihilation at rest at three different hydrogen target densities have been analyzed in the frame of a coupled channel analysis together with pi-pi and pi-K scattering data. Here we present the main results which concern masses, widths, pi-pi and K-Kbar partial widths of all the involved resonances (J P = 0+, 1−, 2+), the direct determination of Γ(Kbar-K)/Γ(pi-pi) ratio for f0(1370) and f0(1500), the determination of a0(1300) parameters (M = 1303 ± 16 MeV; Γ = 92± 16 MeV) and the observation of two different high mass ρ signals associated to ρ(1450) and ρ(1700) (M = 1182 ± 30 MeV; Γ = 389 ± 20 MeV and M = 1594 ± 20 MeV; Γ = 259 ± 20 MeV, respectively).

Results of the coupled channel analysis of pi+pi−pi0, K+K−pi0and K±K0Spi∓ final states from pbar-p annihilation at rest in hydrogen targets at different densities

FONTANA, ANDREA;MONTAGNA, PAOLO MARIA;ROTONDI, ALBERTO;
2003-01-01

Abstract

The pi+pi−pi0, K+K−pi0 and K±K0pi∓ final states produced by pbar-p annihilation at rest at three different hydrogen target densities have been analyzed in the frame of a coupled channel analysis together with pi-pi and pi-K scattering data. Here we present the main results which concern masses, widths, pi-pi and K-Kbar partial widths of all the involved resonances (J P = 0+, 1−, 2+), the direct determination of Γ(Kbar-K)/Γ(pi-pi) ratio for f0(1370) and f0(1500), the determination of a0(1300) parameters (M = 1303 ± 16 MeV; Γ = 92± 16 MeV) and the observation of two different high mass ρ signals associated to ρ(1450) and ρ(1700) (M = 1182 ± 30 MeV; Γ = 389 ± 20 MeV and M = 1594 ± 20 MeV; Γ = 259 ± 20 MeV, respectively).
2003
The Physics category includes resources of a broad, general nature that contain materials from all areas of physics, The category also includes resources specifically concerned with the following physics sub-fields: mathematical physics, particle and nuclear physics, physics of fluids and plasmas, quantum physics, and theoretical physics.
sì
Sì, ma tipo non specificato
Inglese
Internazionale
STAMPA
561
233
240
Tematica Ex SIR: OBELIX: Studio dell'interazione di antiprotoni di bassa energia con nuclei leggeri (Classif. Ex SIR:Articoli su riviste ISI )
Antiproton-proton annihilation at rest; Hydrogen targets; Kaon production
10
info:eu-repo/semantics/article
262
Bargiotti, M.; . ., .; Filippini, Valerio; Fontana, Andrea; Montagna, PAOLO MARIA; Panzarasa, Alberto; Rotondi, Alberto; Salvini, Paola; Et, Al; Obeli...espandi
1 Contributo su Rivista::1.1 Articolo in rivista
none
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: https://hdl.handle.net/11571/16353
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact