J /. psi. r arrow vector+pseudoscalar decays and the quark content of. eta. and. eta. prime

Branching ratios of {ital J}/{psi} decays into {omega}{pi}{sup 0},{omega}{eta},{omega}{eta}{prime},{rho}{eta},{rho}{eta}{prime},{phi}{eta},{phi}{eta}{prime}, and {ital K}{sup *}(892){bar K}+charge conjugate are measured from the 8.6{times}10{sup 6} {ital J}/{psi}'s produced by the DM2 experimen...

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Veröffentlicht in:	Physical review. D, Particles and fields Particles and fields, 1990-03, Vol.41:5
Hauptverfasser:	Jousset, J., Ajaltouni, Z., Falvard, A., Jnad, H., Michel, B., Montret, J.C., Bisello, D., Busetto, G., Castro, A., Pescara, L., Racioppi, F., Sartori, P., Stanco, L., Augustin, J.E., Cosme, G., Couchot, F., Fulda, F., Grosdidier, G., Jean-Marie, B., Lepeltier, V., Mane, F., Szklarz, G., Baldini, R., Schioppa, M., DM2 Collaboration
Format:	Artikel
Sprache:	eng
Schlagworte:	BOSONS BRANCHING RATIO CHARMONIUM COMPOSITE MODELS DCI ORSAY STORAGE RING DECAY ELEMENTARY PARTICLES ETA MESONS ETA PRIME-958 MESONS FUNCTIONS GLUONS HADRONIC PARTICLE DECAY HADRONS J PSI-3097 MESONS K -892 MESONS LIE GROUPS MAGNETIC SPECTROMETERS MASS FORMULAE MASSLESS PARTICLES MATHEMATICAL MODELS MEASURING INSTRUMENTS MESONS OMEGA-783 MESONS PARTICLE DECAY PARTICLE MODELS PERTURBATION THEORY PHI-1020 MESONS PHOTONS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS POSTULATED PARTICLES PSEUDOSCALAR MESONS QUARK MODEL QUARKONIUM SPECTROMETERS STORAGE RINGS STRANGE MESONS STRANGE PARTICLES STRANGEONIUM SU GROUPS SU-3 GROUPS SYMMETRY GROUPS VECTOR MESONS 645103 > High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties WAVE FUNCTIONS
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Zusammenfassung:	Branching ratios of {ital J}/{psi} decays into {omega}{pi}{sup 0},{omega}{eta},{omega}{eta}{prime},{rho}{eta},{rho}{eta}{prime},{phi}{eta},{phi}{eta}{prime}, and {ital K}{sup *}(892){bar K}+charge conjugate are measured from the 8.6{times}10{sup 6} {ital J}/{psi}'s produced by the DM2 experiment at the Orsay {ital e}{sup +}{ital e}{sup {minus}} storage ring DCI. The {eta} and {eta}{prime} mesons are found consistent with a {ital q{bar q}} structure and a mixing angle {theta}{sub {ital P}}=({minus}19.1{plus minus}1.4){degree}.
ISSN:	0556-2821 1089-4918
DOI:	10.1103/PhysRevD.41.1389