20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Searches with top quarks at D0

21 Jul 2011, 14:45
15m
Dauphine (Alpes Congrès - Alpexpo)

Dauphine

Alpes Congrès - Alpexpo

Parallel session talk Higgs and New Physics

Speaker

Prof. Dhiman Chakraborty (Northern Illinois University)

Description

We present two searches involving final states with top quarks or with topologies similar to those observed in top quark decays. The first is a search for the pair production of a fourth generation $t'$ quark and its antiparticle, followed by their decay to a W boson and a jet, based on an integrated luminosity of 5.3 fb$^{-1}$ of $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV. The second is a search for the production of a heavy gauge boson $W'$, that decays to third generation quarks. In both cases we set 95\% C.L.~upper limits on the production cross sections and translate these into limits on the mass of the fourth generation quarks oir of the $W'$ boson in a variety of models.

Primary author

Dr Chiara Mariotti (INFN Torino)

Presentation Materials