Collider Cross Talk

SUSY: from prompt to long-lived (LLP)

by Javier Montejo Berlingen (The Barcelona Institute of Science and Technology (BIST) (ES)), Kazuki Sakurai (University of Warsaw)

4/2-011 - TH common room (CERN)

4/2-011 - TH common room


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Supersymmetry (SUSY) provides elegant solutions to several problems in the Standard Model, and searches for SUSY particles are an important component of the LHC physics program. Several scenarios in SUSY can lead to long-lived particles (LLPs) and consequently produce unique experimental signatures with decay products that are significantly displaced with respect to the interaction point. Experimental searches for SUSY have been performed focusing mostly on prompt decay but also addressing models with LLPs. The talk with focus on the transition region between both regimes, and discuss the challenge of addressing the gaps left between prompt and LLP searches.


Javier Montejo Berlingen is an ATLAS experimental physicist. Currently he is a Ramon y Cajal researcher at IFAE, Barcelona. Previously he was CERN fellow and staff, and he obtained his PhD at the Universitat Autonoma de Barcelona. His research interests focus on searches for new physics in complex final states, especially supersymmetry, machine-learning and trigger. He is currently convener of the ATLAS supersymmetry group.

Kazuki Sakurai is a theoretical physicist whose main research interest is collider physics and BSM phenomenology. He has been working on exotic collider signatures (e.g. mono-top, long-lived, instantons, etc.) and their interplay with other experiments (e.g. g-2, dark matter, etc.).  Kazuki completed his PhD at Nagoya University in 2009. He then worked as a PD researcher at the University of Cambridge, DESY (Hamburg), King’s College London and IPPP (Durham). Since 2017, he has been working as a faculty at the University of Warsaw.