Speaker
Dr
James Alexander Kraus
(Michigan State University (US))
Description
We present a search for the pair production of scalar top quarks (stop_1), the lightest supersymmetric partners of the top quarks, in ppbar collisions at a center-of-mass energy of 1.96 TeV, using data corresponding to an integrated luminosity of 7.3 fb^-1 collected with the D0 experiment at the Fermilab Tevatron Collider. Each scalar top quark is assumed to decay into a b quark, a charged lepton, and a scalar neutrino (snu). We investigate final states arising from stop_1 \bar{stop_1} --> b\bar{b}\mu\tau snu snu and stop_1 \bar{stop_1} --> b\bar{b}\tau\tau snu snu. With no significant excess of events observed above the background expected from the standard model, we set exclusion limits on this production process in the (m_{stop_1},m_{snu}) plane.
Primary author
Dr
James Kraus
(University of Mississippi (US))
