LPC Distinguished Researcher


Nadja Strobbe


Fermi National Accelerator Laboratory

What I will be working on:

My main focus as LPC DR will be on searches for R-Parity Violating (RPV) Supersymmetry (SUSY). These searches have not received as much attention as their R-parity conserving counterparts. I will pursue two new analyses for RPV decays of top squarks: a search for single top squark production in hadronic final states, and a search for top squark pair production in final states with dibosons and jets. Additionally, it is my goal to understand the current coverage of the RPV SUSY landscape and to kick-start new search efforts to close any gaps.

I will also be working on the Phase 2 upgrade of the Endcap Calorimeter, in particular on several aspects of the readout electronics. As LPC DR, I will be participating in the system testing as well as the full-scale cassette tests taking place at FNAL.

My role in CMS past and present:

I have been a member of CMS since 2010, and have developed extensive expertise in searches for new physics. I have recently completed a search for top squarks in final states with top quarks and many additional light-flavor jets, targeting RPV and Stealth SUSY models. Interesting results prompted me to dig deeper into this final state. Previously, I have worked on searches such as the hadronic top squark analysis, the razor boost analysis, and the search for top squarks in the single lepton final state.

I am currently co-convener of the SUS Lepton/RPV subgroup, after transitioning from the SUS Inclusive/RPV/Photon subgroup. In the past, I have also been co-convener of the SUS MC subgroup. Detector-wise, I was heavily involved in the Phase 1 upgrade of the hadron calorimeter. I led the quality control of the readout electronics for the barrel, characterized about 45k QIE10 and QIE11 readout ASICs, and coordinated test beam and radiation test campaigns. In 2019 I joined the CMS Endcap Calorimeter for the Phase 2 upgrade. My group is responsible for the design and quality control of all "motherboards" for the silicon section of the detector, and I am part of the USCMS HGCAL Management team.