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Anatomy of the amplituhedron (2015)
Journal Article
Franco, S., Galloni, D., Mariotti, A., & Trnka, J. (2015). Anatomy of the amplituhedron. Journal of High Energy Physics, 2015(3), Article 128. https://doi.org/10.1007/jhep03%282015%29128

We initiate a comprehensive investigation of the geometry of the amplituhedron, a recently found geometric object whose volume calculates the integrand of scattering amplitudes in planar N = 4 SYM theory. We do so by introducing and studying its stra... Read More about Anatomy of the amplituhedron.

Selectron NLSP in gauge mediation (2014)
Journal Article
Calibbi, L., Mariotti, A., Petersson, C., & Redigolo, D. (2014). Selectron NLSP in gauge mediation. Journal of High Energy Physics, 2014(9), Article 133. https://doi.org/10.1007/jhep09%282014%29133

We discuss gauge mediation models in which the smuon and the selectron are mass-degenerate co-NLSP, which we, for brevity, refer to as selectron NLSP. In these models, the stau, as well as the other superpartners, are parametrically heavier than the... Read More about Selectron NLSP in gauge mediation.

Multiphoton signatures of goldstini at the LHC (2014)
Journal Article
Ferretti, G., Mariotti, A., Mawatari, K., & Petersson, C. (2014). Multiphoton signatures of goldstini at the LHC. Journal of High Energy Physics, 2014(4), Article 126. https://doi.org/10.1007/jhep04%282014%29126

We study models of gauge mediated SUSY breaking with more than one hidden sector. In these models the neutralino sector of the MSSM is supplemented with additional light neutral fermions, the nearly massless gravitino and the massive pseudo-goldstini... Read More about Multiphoton signatures of goldstini at the LHC.

Multilepton signals of gauge mediated supersymmetry breaking at the LHC (2014)
Journal Article
D'Hondt, J., De Causmaecker, K., Fuks, B., Mariotti, A., Mawatari, K., Petersson, C., & Redigolo, D. (2014). Multilepton signals of gauge mediated supersymmetry breaking at the LHC. Physics Letters B, 731, 7-12. https://doi.org/10.1016/j.physletb.2014.02.016

We investigate multilepton LHC signals arising from electroweak processes involving sleptons. We consider the framework of general gauge mediated supersymmetry breaking, focusing on models where the low mass region of the superpartner spectrum consis... Read More about Multilepton signals of gauge mediated supersymmetry breaking at the LHC.

The geometry of on-shell diagrams (2014)
Journal Article
Franco, S., Galloni, D., & Mariotti, A. (2014). The geometry of on-shell diagrams. Journal of High Energy Physics, 2014(8), Article 38. https://doi.org/10.1007/jhep08%282014%29038

The fundamental role of on-shell diagrams in quantum field theory has been recently recognized. On-shell diagrams, or equivalently bipartite graphs, provide a natural bridge connecting gauge theory to powerful mathematical structures such as the Gras... Read More about The geometry of on-shell diagrams.