par Abreu, Pedro;Bertrand, Daniel 
; [et al.]
Référence Physics letters. Section B, 242, 3-4, page (536-546)
Publication Publié, 1990
; [et al.]Référence Physics letters. Section B, 242, 3-4, page (536-546)
Publication Publié, 1990
Article révisé par les pairs
| Résumé : | We present a search for the third generation up type quark t and a possible fourth down type quark b' in hadronic Z0 decays observed in DELPHI at the LEP collider. For any scenario with a decay through the charged current or into a charged Higgs with a mass at least 6 GeV/c2 below the t and 3 GeVc2 below the b' mass, we set a lower limit for the t quark mass at 44.0 GeV/c2 and for the b' mass at 44.5 GeV/c2. For specific scenarios the mass limits are slightly higher, e.g. for charged current decays the limits are 44.5 and 45.0 GeV/c2 respectively, where all limits are given at a 95% confidence level. © 1990. |
