A search for the production of the eta(c)' meson, the first radial excitation of the ground state of charmonium eta(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 eta(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 eta(c)' and eta(c) is obtained. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

A search for eta '(c) production in photon-photon fusion at LEP

BIANCHI, Fabrizio;MIGLIORE, Ernesto;ROMERO, Alessandra;
1998-01-01

Abstract

A search for the production of the eta(c)' meson, the first radial excitation of the ground state of charmonium eta(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 eta(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 eta(c)' and eta(c) is obtained. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
1998
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P. Abreu;W. Adam;T. Adye;P. Adzic;G. D. Alekseev;R. Alemany;P. P. Allport;S. Almehed;U. Amaldi;S. Amato;E. G. Anassontzis;P. Andersson;A. ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/102505
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