2015/04/03 by Mihailo Backović, Backović, Mihailo, Alberto Mariotti +3 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.1504.00927
36 pages, 9 figures, 8 tables. Minor changes to the conclusions section. Accepted For publication in JHEP
openalex publication_date 2015/04/03 · arxiv created 2015/06/03 · arxiv updated 2015/06/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 m_u \lesssim 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 probed to comparable squark masses at high luminosity LHC14.