Data di Pubblicazione:
1992
Abstract:
First results on meson spectroscopy using antineutrons as projectiles are reported. Three-body (pi+ pi+ pi-) and five-body (pi+ pi+ pi+ pi- pi-) final states following the annihilation of 100 to 290 MeV/c antineutrons on hydrogen were analyzed. The (pi+ pi-) invariant mass spectrum in the three-body reaction is accounted for by the rho-0 and 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 (pi+ pi+ pi- pi-) invariant mass in five-body events shows the already reported structure zeta(1480) and suggests the presence of a second structure around 1650 MeV.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
meson spectroscopy; antineutron proton annhilation
Elenco autori:
A. ADAMO;M. AGNELLO;F. BALESTRA;G. BELLI;G. BENDISCIOLI;A. BERTIN;P. BOCCACCIO;G. C. BONAZZOLA;T. BRESSANI;M. BRUSCHI;M. P. BUSSA;L. BUSSO;D. CALVO;M. CAPPONI;M. CORRADINI;S. COSTA;S. DECASTRO;F. DISEP;L. FAVA;A. FELICIELLO;L. FERRERO;V. FILIPPINI;D. GALLI;R. GARFAGNINI;U. GASTALDI;P. GIANOTTI;A. GRASSO;C. GUARALDO;F. IAZZI;A. LANARO;E. L. RIZZINI;M. LOMBARDI;V. LUCHERINI;A. MAGGIORA;S. MARCELLO;U. MARCONI;G. V. MARGAGLIOTTI;G. MARON;A. MASONI;I. MASSA;B. MINETTI;M. MORANDO;F. NICHITIU;D. PANZIERI;G. PAULI;M. PICCININI;G. PIRAGINO;M. POLI;G. PUDDU;R. A. RICCI;E. ROSSETTO;A. ROTONDI;A. M. ROZHDESTVENSKY;P. SALVINI;L. SANTI;M. G. SAPOZHNIKOV;N. S. CESARI;S. SERCI;P. TEMNIKOV;S. TESSARO;F. TOSELLO;V. I. TRETYAK;L. VANNUCCI;G. VEDOVATO;L. VENTURELLI;A. VITALE;G. ZAVATTINI;A. ZENONI;A. ZOCCOLI;G. ZOSI
Link alla scheda completa:
Pubblicato in: