A search for η′ c production in photon–photon fusion at LEP

A search for η′ c production in photon–photon fusion at LEP

A search for the production of the η′ c meson, the first radial excitation of the ground state of charmonium η c (2980), in the photon–photon fusion reaction at LEP has been performed using the data collected by the DELPHI detector during 1992–1996. No evidence of η′ c production is found in the mas...

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Veröffentlicht in:Physics letters. B 1998, Vol.441 (1), p.479-490
Hauptverfasser: Abreu, P., Allport, P.P., Almehed, S., Andersson, P., Åsman, B., Bertini, D., Booth, P.S.L., Bouquet, B., Bozovic, I., Brenner, R.A., Bugge, L., Buschmann, P., Calvi, M., Chabaud, V., Charpentier, Ph, Collins, P., Colomer, M., Contri, R., Cuevas Maestro, J., Czellar, S., De Brabandere, S., De Lotto, B., Di Ciaccio, L., Eigen, G., Elsing, M., Engel, J-P., Erzen, B., Feindt, M., Ferrari, P., Ferrer, A., Gamblin, S., Gaspar, C., Gaspar, M., Gavillet, Ph, Gele, D., Glege, F., Golob, B., Gonzalez Caballero, I., Gorn, L., Gorski, M., Graziani, E., Green, C., Hallgren, A., Hamacher, K., Hernandez, J.J., Jarlskog, G., Jean-Marie, B., Jonsson, P., Keranen, R., Khokhlov, Yu, Koratzinos, M., Kurvinen, K., Lane, D.W., Laugier, J-P., Lokajicek, M., Loken, J.G., Malek, A., Margoni, M., Matteuzzi, C., Mazzucato, F., Meroni, C., Mirabito, L., Moenig, K., Morton, G., Mueller, U., Navas, S., Nawrocki, K., Nomokonov, V., Nygren, A., Orava, R., Osterberg, K., Paiva, R., Pape, L., Petrolini, A., Phillips, H.T., Podobnik, T., Rahmani, H., Regler, M., Resvanis, L.K., Ruhlmann-Kleider, V., Sampsonidis, D., Seager, P., Sekulin, R., Skaali, T.B., Smith, G.R., Stevenson, K., Stugu, B., Szeptycka, M., Tabarelli, T., Terranova, F., Timmermans, J., Tome, B., Troncon, C., Van Eldik, J., Van Vulpen, I., Ventura, L., Verbeure, F., Vodopyanov, A.S., Wicke, D., Zimin, N.I.
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Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:A search for the production of the η′ c meson, the first radial excitation of the ground state of charmonium η c (2980), in the photon–photon fusion reaction at LEP has been performed using the data collected by the DELPHI detector during 1992–1996. No evidence of η′ c production is found in the mass region 3520–3800 MeV/c 2. An upper limit for the ratio of the two-photon widths of the η′ c and η c is obtained.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(98)01300-8