Abstract
First results on meson spectroscopy using antineutrons as projectiles are reported. Three-body (π+π+π-) and five-body (π+π+π+π-π-) final states following the annihilation of 100 to 290 MeV/c antineutrons on hydrogen were analyzed. The (π+π-) invariant mass spectrum in the three-body reaction is accounted for by the ρ{variant}0 anf f2(1270) resonances, together with an enhancement around 1540 MeV, in the region of the AX (1565) and the f2(1515) resonances, whereas the best fit for the (π+π+π-π-) invariant mass in five-body events shows the already reported structure ζ(1480) and suggests the presence of a second structure around 1650 MeV.
Lingua originale | Inglese |
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pagine (da-a) | 368-374 |
Numero di pagine | 7 |
Rivista | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 287 |
Numero di pubblicazione | 4 |
DOI | |
Stato di pubblicazione | Pubblicato - 13 ago 1992 |
Pubblicato esternamente | Sì |