par Abdallah, Jalal Mohamad;Bertrand, Daniel ; [et al.]
Référence European Physical Journal C. Particles and Fields, 22, page (17-29)
Publication Publié, 2001
Article révisé par les pairs
Résumé : Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles ρT and πT have been performed in the data collected by the DELPHI experiment at LEP at ceritre-of-mass energies between 192 and 208 GeV corresponding to an integrated luminosity of 452 pb-1. Good agreement is observed with the SM expectation in all channels studied. This is translated into an excluded region in the (MπT, MρT) plane. The ρT production is excluded for all 90 < MρT < 206.7 GeV/c2. Assuming a point-like interaction of the πT with gauge bosons, an absolute lower limit on the charged πT mass at 95% CL is set at 79.8 GeV/c2, independently of other parameters of the technicolor model.