Speaker
Dr
Yvonne Peters
(University of Manchester)
Description
The top quark is the heaviest elementary particle known today. It is
therefore an excellent candidate to search for new physics. We present
searches for physics beyond the Standard Model involving top
quarks. The analysed data corresponds to up to 4 fb^-1 of integrated
luminosity, collected by the D0 detector at the Femilab Tevatron
collider. We present various searches for new physics in the
production of single top quarks such as searches for W' bosons and
charged Higgs bosons. We also discuss searches in the production of
top quark pairs such as searches for new resonances, Higgs bosons
produced in association with top-antitop quark pairs and present a
measurement of a forward backward asymmetry. Furthermore, we present a
simultaneous measurement of the ratio of branching fractions, R=B(t ->
Wb)/B(t -> Wq), with q being a d, s, or b quark, and search for new
particles in top quark decays, such as charged Higgs bosons. We set
limits in various supersymmetric models.
Primary author
Dr
Yvonne Peters
(University of Manchester)
