Showing papers by "Jalal Abdallah published in 2001"
TL;DR: In this article, a lower bound on the mass of a point-like interaction of the technicolor particle with the Higgs mechanism was established for all points in the plane of the DELPHI experiment at LEP.
Abstract: Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected by the DELPHI experiment at LEP at centre-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 $(M_{\pi_T},M_{\rho_T})$ plane. The $\rho_T$ production is excluded for all $90 M_{\rho_T} 206.7$ GeV/c$^2$. Assuming a point-like interaction of the $\pi_T$ with gauge bosons, an absolute lower limit on the charged $\pi_T$ mass at 95\% CL is set at 79.8 GeV/c$^2$, independently of other parameters of the technicolor model.
14 citations
TL;DR: In this paper, a lower bound of 79.8 GeV/c^2 was established for the mass of the pi-T with point-like interaction with gauge bosons.
Abstract: Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles rho_T and pi_T have been performed in the data collected by the DELPHI experiment at LEP at centre-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 (M_{pi_T},M_{rho_T}) plane. The rho_T production is excluded for all 90 < M_{rho_T} < 206.7 GeV/c^2. Assuming a point-like interaction of the pi_T with gauge bosons, an absolute lower limit on the charged pi_T mass at 95% CL is set at 79.8 GeV/c^2, independently of other parameters of the technicolor model.
5 citations