Production ofφandωMesons in Near-ThresholdppReactions
| Autor: | S. E. Vigdor, L. Fava, L. C. Bland, V. Frolov, Gianfranco Zosi, F. Brochard, Y. Bedfer, I.V. Falomkin, Seonho Choi, L. Ferrero, J.-Cl. Faivre, V.V. Ivanov, A. Maggiora, E. Grosse, M. Maggiora, Joachim Stroth, W. W. Jacobs, J. Foryciarz, Mario Dzemidzic, Peter Senger, G.B. Pontecorvo, H.-W. Pfaff, R. Bertini, J. Ritman, F. Tosello, V. Chalyshev, W. Kühn, A. Grasso, F. Balestra, A. Manara, G. Piragino, D. Panzieri, S. Heinz, M.P. Bussa, A. Brenschede, P. Salabura, D. R. Gill, M. Debowski, R. Garfagnini, A.A. Popov |
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| Rok vydání: | 1998 |
| Předmět: | |
| Zdroj: | Physical Review Letters. 81:4572-4575 |
| ISSN: | 1079-7114 0031-9007 |
| Popis: | The ratio of the exclusive production cross sections for φ and ω mesons has been measured in pp reactions at Tbeam=2.85GeV. The observed φ/ω ratio is (3.7±0.7−0.9+1.2)×10−3. After phase space corrections, this ratio is about a factor of 10 enhanced relative to naive predictions based upon the Okubo-Zweig-Iizuka rule, in comparison to an enhancement by a factor of ∼3 previously observed at higher energies. The modest increase of this enhancement near the production threshold is compared to the much larger increase of the φ/ω ratio observed in specific channels of p¯p annihilation experiments. |
| Databáze: | OpenAIRE |
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