Speaker
Manuel Szewc
(Jozef Stefan Institute and ICAS-UNSAM)
Description
In this talk we present a new method to measure the ratio of the top-quark branching fractions, which expands upon a previous CMS analysis. We incorporate an additional orthogonal light-quark-tagger and extend the statistical model implemented by the CMS collaboration to include the number of quark-tagged jets. We show that the interplay between these different orthogonal jet-taggers increases the sensitivity of the search by taking advantage of the high statistics of the di-leptonic $t\overline{t}$ production, without introducing additional assumptions such as unitarity.
Authors
Darius Faroughy
(Zurich University)
Jernej Kamenik
(Jozef Stefan Institute and Ljubljana University)
Jure Zupan
(University of Cincinnati)
Manuel Szewc
(Jozef Stefan Institute and ICAS-UNSAM)