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, 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
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/16353
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