5 papers
Multi-top signals of vectorlike quarks at the LHC
Elias Bernreuther, Bogdan A. Dobrescu
We point out that events with 6 or more top quarks may be observed at the LHC if certain particles exist at the TeV scale. In a model where a vectorlike quark of charge 2/3 decays…
Octet scalars shaping LHC distributions in 4-jet final states
Bogdan A. Dobrescu, Max H. Fieg
We study properties of a hypothetical scalar particle, , which is a color octet and an electroweak singlet. At hadron colliders, is pair produced through its QCD coupling…
Composite quarks and leptons with embedded QCD
Benoît Assi, Bogdan Dobrescu
We construct a model of quark and lepton compositeness based on an gauge interaction that confines chiral preons, which are also charged under the weakly-coupled $SU(4)_{\…
Ultraheavy diquark decaying into vectorlike quarks at the LHC
Ioana Duminica, Calin Alexa, Ioan M. Dinu +2
We explore the discovery potential of an ultraheavy TeV) diquark scalar produced in the collisions of two up quarks at the LHC. Assuming that the diquark scalar decays int…
Quark-universal breaking scalar at the LHC
Lorin Armbruster, Bogdan A. Dobrescu, Felix Yu
If the quarks or leptons are charged under a new gauge symmetry, then besides a boson there must exist at least one new boson whose decay products include Standard Mode…