Speaker
Ioana Duminica
(University of Bucharest and IFIN-HH (RO))
Description
We investigate the potentially observable consequences at the LHC of resonant production of a vectorlike quark pair through an ultraheavy diquark scalar. For this study, we performed comprehensive Monte-Carlo simulations for a diquark mass of 7 TeV or 8.5 TeV, and a vectorlike quark mass of 2 TeV. We assume that each vectorlike quark decays into a W boson and a b quark, and given the very large invariant mass of the events, we focus on the 6-jet final state. To evaluate the signal selection efficiency, we employed several Machine Learning models trained to discriminate against a multitude of relevant background sources. We have found that the even the diquark as heavy as 8.5 TeV can be discovered or ruled out by the end of the HL-LHC runs.
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Author
Ioana Duminica
(University of Bucharest and IFIN-HH (RO))
Co-authors
Adam Jinaru
((IFIN-HH (RO))
Bogdan Dobrescu
(Theoretical Physics Department, Fermilab)
Calin Alexa
(IFIN-HH (RO))
Ioan-Mihail Dinu
(IFIN-HH (RO))
