Eur. Phys. J. C 20, 445-454 (2001)
A search for a narrow radial excitation of the MesonThe OPAL Collaboration G. Abbiendi and et al.
Dipartimento di Fisica dell' Università di Bologna and INFN, 40126 Bologna, Italy
A sample of 3.73 million hadronic Z decays, recorded with the OPAL detector at LEP in the years 1991-95, has been used to search for a narrow resonance corresponding to the decay of the meson into . The D*+ mesons are reconstructed in the decay channel with . No evidence for a narrow resonance is found. A limit on the production of narrow in hadronic Z decays is derived:
© Società Italiana di Fisica, Springer-Verlag 2001