Model-independent framework for searches of top partners
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Publication:2440215
DOI10.1016/J.NUCLPHYSB.2013.08.010zbMATH Open1284.81290arXiv1305.4172OpenAlexW2039886369MaRDI QIDQ2440215
Author name not available (Why is that?)
Publication date: 27 March 2014
Published in: (Search for Journal in Brave)
Abstract: We propose a model-independent and general framework to study the LHC phenomenology of top partners, i.e. Vector-Like quarks including particles with different electro-magnetic charge. We consider Vector-Like quarks embedded in general representations of the weak SU(2)L, coupling to all Standard Model quarks via Yukawa mixing focusing on the case of a single multiplet. We show that, with very minimal and quite general assumptions, top partners may be studied in terms of few parameters in an effective Lagrangian description with a clear and simple connection with experimental observables. We also demonstrate that the parametrisation can be applied as well to cases with many Vector-like multiplets, thus covering most realistic models of New Physics. We perform a numerical study to understand the conclusions which can be drawn within such a description and the expected potential for discovery or exclusion at the LHC. Our main results are a clear connection between branching ratios and single production channels, and the identification of novel interesting channels to be studied at the LHC.
Full work available at URL: https://arxiv.org/abs/1305.4172
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