Measuring the sign of the Htt coupling at the LHC

by Emidio Gabrielli (INFN, Trieste and University of Tallinn)

Thursday 21 Feb 2013, 11:00 → 12:00 Europe/Zurich

4/2-011 - TH common room (CERN)

The LHC sensitivity to an anomalous Higgs coupling to the top quark in the Higgs-top associated production is analyzed. Thanks to the strong destructive interference in the t-channel for standard model couplings, this process can be very sensitive to both the magnitude and the sign of a nonstandard top-Higgs coupling. We analyze cross sections and the main irreducible backgrounds for the H -> gamma gamma decay channel. Sensitivities to an anomalous sign for the top Yukawa coupling are found to be large.

Slides Talk_Emidio1.pdf