The pi(+)pi(-)pi(0), K(+)K(-)pi(0) and K(+/-)K(0)pi(double dagger) final states produced by p p annihilation at rest at three different hydrogen target densities have been analyzed in the frame of a coupled, channel analysis together with pipi and piK scattering data. Here we present the main results which concern masses, widths, pi and K (K) over bar partial widths of all the involved resonances (J(P) = 0(+), 1(-), 2(+)), the direct determination of Gamma(KK) / Gamma(pipi) ratio for f(0) (1370) and f(0) (1500) (Gamma(KK) / Gamma(pipi) = 0.91 +/- 0.20 and Gamma(KK) / Gamma(pipi) = 0.25 +/- 0.03, respectively), the determination of a(0) (1300) parameters (M = 1303 +/- 16 MeV, Gamma = 92 +/- 16 MeV) and the observation of two different high mass p signals associated to p(1450) and p(1700) (M = 1182 30 MeV, Gamma = 389 +/- 20 MeV and M 1594 +/- 20 MeV; Gamma = 259 +/- 20 MeV, respectively).

Results of the coupled channel analysis of pi+ pi- pi0, K+ K- pi0 and K+- K0(S) pi-+ final states from anti-p p annihilation at rest in hydrogen targets at different densities.

BUSSA, Maria Pia;BALESTRA, Ferruccio;BUSSO, Luigi;FERRERO, Livio;GARFAGNINI, Raffaello;PANZIERI, Daniele;BOTTA, Elena;BRESSANI, Tullio;DE MORI, FRANCESCA;MARCELLO, Simonetta;
2003-01-01

Abstract

The pi(+)pi(-)pi(0), K(+)K(-)pi(0) and K(+/-)K(0)pi(double dagger) final states produced by p p annihilation at rest at three different hydrogen target densities have been analyzed in the frame of a coupled, channel analysis together with pipi and piK scattering data. Here we present the main results which concern masses, widths, pi and K (K) over bar partial widths of all the involved resonances (J(P) = 0(+), 1(-), 2(+)), the direct determination of Gamma(KK) / Gamma(pipi) ratio for f(0) (1370) and f(0) (1500) (Gamma(KK) / Gamma(pipi) = 0.91 +/- 0.20 and Gamma(KK) / Gamma(pipi) = 0.25 +/- 0.03, respectively), the determination of a(0) (1300) parameters (M = 1303 +/- 16 MeV, Gamma = 92 +/- 16 MeV) and the observation of two different high mass p signals associated to p(1450) and p(1700) (M = 1182 30 MeV, Gamma = 389 +/- 20 MeV and M 1594 +/- 20 MeV; Gamma = 259 +/- 20 MeV, respectively).
2003
561(3-4)
233
240
ANTIPROTON-PROTON ANNIHILATION; MULTI-QUARK HADRONS; S-STATE; H-2 GAS; F(0)(1500); PI(0)PI(0)PI(0); PI(0)ETA-ETA; COLLISIONS; GLUEBALL; SEARCH
M. BARGIOTTI; A. BERTIN; M. BRUSCHI; M. CAPPONI; A. CARBONE; S. DE CASTRO; R. DONÀ; L. FABBRI; P. FACCIOLI; D. GALLI; B. GIACOBBE; F. GRIMALDI; U. MAR...espandi
File in questo prodotto:
File Dimensione Formato  
2003_PL_B561_233-240.pdf

Accesso riservato

Tipo di file: POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione 255.38 kB
Formato Adobe PDF
255.38 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

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/2318/36936
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact