10-17 July 2019
Europe/Brussels timezone

Tagging Top in Leptonic Decay

12 Jul 2019, 11:45
Campus Ledeganck - Aud. 3 (Ghent)

Campus Ledeganck - Aud. 3


Parallel talk Top and Electroweak Physics Top and Electroweak Physics


Mr Suman Chatterjee (Tata Inst. of Fundamental Research (IN))


We have performed an object tagging approach to identify boosted top quark decaying to electron or muon final state without an explicit use of the lepton. When top quark is produced with large transverse momentum, its daughter lepton has a hadronic activity in it's neighborhood, and hence standard lepton identification and isolation criteria are affected. We have come up with novel observables and used jet substructure information to tag the top quark in this scenario. We have also developed new variables which can distinguish the top quark from it's supersymmetric partner stop, when both of them decay to the same the final state consisting of lepton, b quark and missing energy. The performance is our tagger is evaluated using multivariate analysis at detector level.

Primary authors

Mr Suman Chatterjee (Tata Inst. of Fundamental Research (IN)) Tuhin Roy (Boston University) Rohini Madhusudan Godbole (Indian Institute of science (IN))

Presentation Materials