Fermionic third generation top partners are generic in composite Higgs models. They are likely to decay into third generation quarks and electroweak bosons. We propose a novel cut-and-count-style analysis in which we cross correlate the model-dependent single and model-independent pair production processes for the top partners X5/3 and B. In the class of composite Higgs models we study, X5/3 is very special as it is the lightest exotic fermion. A constraint on the mass of X5/3 directly extends to constrains on all top partner masses. By combining jet substructure methods with conventional reconstruction techniques we show that in this kind of final state a smooth interpolation between the boosted and unboosted regime is possible. We find that a reinterpretation of existing searches can improve bounds on the parameter space of composite Higgs models. Further, at 8 TeV a combined search for X5/3 and B in the l+jets final state can be more sensitive than a search involving same-sign dileptons.
|Titolo:||Boosting Top Partner Searches in Composite Higgs Models|
|Autori:||Azatov, A.; Salvarezza, M.; Son, M.; Spannowsky, M.|
|Rivista:||PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY|
|Data di pubblicazione:||2014|
|Digital Object Identifier (DOI):||10.1103/PhysRevD.89.075001|
|Appare nelle tipologie:||1.1 Journal article|