Abstract
The partial wave analysis of the reaction p̄p → π+π-π0 at rest has been performed for the first time by using high-statistics data sets collected in hydrogen targets at three different densities. The different mixtures of partial waves corresponding to our samples allow a reliable determination of each contribution. This technique is crucial in the identification of the exotic candidate f2(1565) which can be produced by 1S0, 3P1 and 3P2 initial states. The amplitude analysis was performed in the frame of the K-Matrix and P-Vector approach. It requires the presence of the exotic candidates f0(1500) and f2(1565) with the following masses and total widths: (1449 ± 20)MeV, (114 ± 30)MeV and (1507 ± 15)MeV, (130 ± 20)MeV respectively. In addition to f0(980), f0(1300) f2(1270) and ρ(770), a clear evidence of I = 1, JP = 1- signal, which we identify with ρ(1450), is obtained.
Lingua originale | Inglese |
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pagine (da-a) | 476-486 |
Numero di pagine | 11 |
Rivista | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 408 |
Numero di pubblicazione | 1-4 |
DOI | |
Stato di pubblicazione | Pubblicato - 11 set 1997 |
Pubblicato esternamente | Sì |