Abstract
The single vector-like top partner hadroproduction in association with top quark in the five and the six-flavour schemes at the LHC is investigated. The inclusive cross section and the differential distributions are evaluated for many benchmark scenarios at leading and next-to-leading orders, both for fixed-order and fixed-order matched to parton shower. The associated Higgs production with a top quark pair, where the final state arises from the decay of the vector-like top partner into a Higgs boson and a top quark, is examined.
Highlights
These new heavy states can be produced in different manners at the LHC
The inclusive cross section and the differential distributions are evaluated for many benchmark scenarios at leading and next-to-leading orders, both for fixed-order and fixed-order matched to parton shower
We are interested in the single production of the top partner T in association with the top quark at the LHC, and the investigation of the associated Higgs with top quark pair final state which arises from the decay of the T into a Higgs boson and a top quark
Summary
It is very important to have a model independent parameterisation which allows to study the main features and characteristics of VLQs for large variety of models This was provided in [13], where the vector-like quarks are allowed to mix and decay to SM quarks via heavy weak gauge bosons and the Higgs. The main point of this approach, is that the interaction of such new heavy states with ordinary quarks is involved through the Yukawa couplings to the Higgs field doublet In this strategy, the physics of VLQs is traced by an ensemble of few independent parameters handling the single production of these particles and their decay into heavy bosons and ordinary quarks. We employ the public UFO VLQ NLO model to verify our results (UFO for Universal FeynRules Output ). For more detail about the renormalization of the model, see ref. [15].2
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