Search for Sub-threshold Photoproduction of J/Psi Mesons
| Autor: | Bosted, P., Dunne, J., Lee, C. A., Junnarkar, P., Arrington, J., Asaturyan, R., Benmokhtar, F., Christy, M. E., Chudakov, E., Clasie, B., Connell, S. H., Dalton, M. M., Daniel, A., Day, D., Dutta, D., Ent, R., Fomin, N., Gaskell, D., Horn, T., Kalantarians, N., Keppel, C. E., Meekins, D. G., Mkrtchyan, H., Navasardyan, T., Roche, J., Rodriguez, V. M., Kiselev, D., Seely, J., Slifer, K., Strikman, M., Tajima, S., Testa, G., Trojer, Roman, Wesselmann, F. R., Wood, S. A., Zheng, X. C. |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Phys.Rev.C79:015209,2009 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.79.015209 |
| Popis: | A search was made for sub-threshold $J/\psi$ production from a carbon target using a mixed real and quasi-real Bremsstrahlung photon beam with an endpoint energy of 5.76 GeV. No events were observed, which is consistent with predictions assuming quasi-free production. The results place limits on exotic mechanisms that strongly enhance quasi-free production. Comment: 19 pages, 7 figures, to be submitted to Phys. Rev. C |
| Databáze: | arXiv |
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