2013/02/28 by Monika Blanke, Gian F. Giudice, Paride Paradisi +2 · 1 citation
Physics and Astronomy · #Astrophysics #Charm (quantum number) #Collider #Computer science #Flavour #Galaxy #High-Energy Particle Collisions Research #Large Hadron Collider #Lepton #Luminosity #Missing energy #Mixing (physics) #Naturalness #Nuclear physics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Upgrade #hep-ph
paper · pdf · doi:10.1007/jhep06(2013)022
published as JHEP 06 (2013) 022 · 20 pages, 12 figures - clarifying comments added, version to be published in JHEP
openalex publication_date 2013/06/01 · arxiv created 2013/06/06 · arxiv updated 2013/06/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
A bstract We show that a large mixing between the right-handed charm and top squarks (i) is allowed by low-energy flavour constraints; (ii) reduces the experimental bound on the stop mass; (iii) has a mild, but beneficial, effect on fine-tuning; (iv) leads to interesting signatures at the LHC not presently investigated by experiments. We estimate the current bound on the stop mass, in presence of flavour mixing, and discuss the new collider signatures. The signal in the "Image missing"<!-- image only, no MathML or LaTex --> channel is large enough that it can be immediately searched for experimentally, while the signature with same-sign tops and "Image missing"<!-- image only, no MathML or LaTex --> requires a luminosity upgrade of the LHC.