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Signs of Tops from Highly Mixed Stops

Backović, Mihailo; Mariotti, Alberto; Spannowsky, Michael

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Mihailo Backović

Alberto Mariotti


Supersymmetric extensions of the Standard Model with highly mixed squark flavours beyond minimal flavour violation provide interesting scenarios of new physics, which have so far received limited attention. We propose a calculable realization of such scenarios in models of gauge mediation augmented with an extra interaction between the messengers and the up type squark. We compute the supersymmetric spectrum and analyze the flavour physics constraints on such models. In a simplified model approach, we show that scenarios with maximal squark flavour mixing result in interesting phenomenological signatures at the LHC. We show that the model can be probed up to masses of mũ ≲ 950 GeV in the single-top event topology at LHC14 with as little as 300 fb−1. The most distinctive signature of highly mixed scenarios, the same sign positive charge di-top, can be also probed to comparable squark masses at high luminosity LHC14.


Backović, M., Mariotti, A., & Spannowsky, M. (2015). Signs of Tops from Highly Mixed Stops. Journal of High Energy Physics, 2015(06), Article 122.

Journal Article Type Article
Acceptance Date Jun 3, 2015
Online Publication Date Jun 17, 2015
Publication Date Jun 17, 2015
Deposit Date Nov 10, 2016
Publicly Available Date Mar 15, 2017
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2015
Issue 06
Article Number 122


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Copyright Statement
This article is distributed under the terms of the Creative Commons<br /> Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in<br /> any medium, provided the original author(s) and source are credited.

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