Inclusive production of D mesons in photon-photon collisions at and 189 GeV and a first measurement of
The OPAL Collaboration
G. Abbiendi2 - et al.
2 Dipartimento di Fisica dell' Università di Bologna and INFN,
40126 Bologna, Italy
Received: 9 November 1999 / Published online: 8 June 2000 - © Springer-Verlag 2000
The inclusive production of mesons in photon-photon collisions has been measured using the OPAL detector at LEP at centre-of-mass energies of 183 and 189 GeV. The mesons are reconstructed in their decay to with the observed in the two decay modes and . After background subtraction,
Copyright Società Italiana di Fisica, Springer-Verlag 2000