Data di Pubblicazione:
1992
Abstract:
We have performed a search for the P-1(1) state of charmonium resonantly formed in ppBAR annihilations, close to the center of gravity of the 3P(J) states. We report results from the study of the J/psi+pi0 and J/psi+2pi final states. We have observed a statistically significant enhancement in the pBAR+p-->J/psi+pi0 cross section at square-root s congruent-to 3526.2 MeV. This enhancement has the characteristics of a narrow resonance of mass, total width, and production cross section consistent with what is expected for the P-1(1) state. In our search we have found no candidates for the reactions pBAR+p-->J/psi+pi0+pi0 and pBAR+p-->J/psi+pi++pi-.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
HEAVY QUARKONIA; HADRONIC TRANSITIONS; P-1(1) STATES; DECAYS; MODEL; QCD
Elenco autori:
T. A. ARMSTRONG;D. BETTONI;V. BHARADWAJ;C. BIINO;G. BORREANI;D. BROEMMELSIEK;A. BUZZO;R. CALABRESE;A. CECCUCCI;R. CESTER;M. CHURCH;P. DALPIAZ;P. F. DALPIAZ;R. DIBENEDETTO;D. DIMITROYANNIS;M. G. FABBRI;J. FAST;A. GIANOLI;C. M. GINSBURG;K. GOLLWITZER;A. HAHN;M. HASAN;S. HSUEH;R. LEWIS;E. LUPPI;M. MACRI;A. M. MAJEWSKA;M. MANDELKERN;F. MARCHETTO;M. MARINELLI;J. MARQUES;W. MARSH;M. MARTINI;M. MASUZAWA;E. MENICHETTI;A. MIGLIORI;R. MUSSA;S. PALESTINI;M. PALLAVICINI;N. PASTRONE;C. PATRIGNANI;J. PEOPLES;L. PESANDO;F. PETRUCCI;M. G. PIA;S. PORDES;P. RAPIDIS;R. RAY;J. REID;G. RINAUDO;B. ROCCUZZO;J. ROSEN;A. SANTRONI;M. SARMIENTO;M. SAVRIE;A. SCALISI;J. SCHULTZ;K. K. SETH;A. SMITH;G. A. SMITH;M. SOZZI;S. TROKENHEIM;M. F. WEBER;S. WERKEMA;Y. ZHANG;J. ZHAO;G. ZIOULAS
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