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Boosting Top Partner Searches in Composite Higgs Models

Azatov, Aleksandr; Salvarezza, Matteo; Son, Minho; Spannowsky, Michael

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Aleksandr Azatov

Matteo Salvarezza

Minho Son


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.


Azatov, A., Salvarezza, M., Son, M., & Spannowsky, M. (2014). Boosting Top Partner Searches in Composite Higgs Models. Physical Review D, 89(7), Article 075001.

Journal Article Type Article
Publication Date Apr 1, 2014
Deposit Date Dec 12, 2014
Publicly Available Date Apr 27, 2015
Journal Physical Review D
Print ISSN 1550-7998
Electronic ISSN 1550-2368
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 89
Issue 7
Article Number 075001


Published Journal Article (761 Kb)

Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review D 89, 075001 © 2014 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.

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