Overview
Experimental Particle Physics, Collider Physics, Detector Construction, Detector R&D
Research Focus
The Large Hadron Collider (LHC) allows us to study particle collisions at the highest energies ever achieved in a laboratory, creating energy and matter states that only existed nanoseconds after the big bang. We are able to "peek into the past" which might help us to understand how our universe evolved to what it is today.
My current research focuses on unconventional signatures of vertices displaced from the collision point. These signatures, if found, would indicate the existence of a new type of particle with distinctly long lifetimes. Such signatures are expected in a multitude of new physics theories including models explaining dark matter, hidden-valley models, or supersymmetry. Together with Prof. Ritchie Patterson, our group at Cornell developed a custom vertexing algorithm and we are using it to analyze the collision data collected by the CMS experiment.
Previously, I have worked on studies of the self-coupling of the Higgs field, trilinear and quartic couplings of vector bosons, as well as searches for supersymmetry.
Besides analyzing the data of the CMS experiment, I also work on the construction of an upgraded tracking detector for the CMS experiment. The new detector, layers of pixelated silicon sensors, will withstand enormous data rates and radiation doses that we expect at the high-luminosity LHC, the upgrade of the LHC machine. It will be able to track particles with very high precision despite the challenging environment and is crucial to keep taking high-quality data at the CMS experiment. Our team at Cornell is involved in the forward pixel detector updrade. We are testing the sensors, building the mechanical support structure, and we are the integration center for building this detector.
I am also interested in developing new detector technologies based such as monolithic silicon sensors and their usage for both tracking and calorimetry at future collider experiments.
Professional Experience
- Assistant Research Professor, Physics, Cornell University, 2024-present
- Senior Scientist, Physics, Humboldt-Universität zu Berlin, 2021-2024
- Research Associate, Physics, Fermilab, 2015-2021
Publications
The CMS Collaboration, “Search for new physics in triple boson production in proton-proton collisions at √s = 13 TeV using the effective field theory approach”, arXiv:2605.15023, submitted to JHEP
L. Fasselt et al., “Energy calibration through X-ray absorption of the DECAL sensor, a monolithic active pixel sensor prototype for digital electromagnetic calorimetry and tracking”, Front. Phys. 11, 1231336 (2023)
C. Accettura et al., “Towards a Muon Collider”, Eur. Phys. J. C 83 (9), 864 (2023)
P. Allport et al., “DECAL: A Reconfigurable Monolithic Active Pixel Sensor for Tracking and Calorimetry in a 180 nm Image Sensor Process”, Sensors 22 (18), 6848 (2022)
The Tracker Group of the CMS Collaboration, “The CMS Phase-1 Pixel Detector Upgrade”, JINST 16 (02), P02027 (2021)
The CMS Collaboration, “Observation of the production of three massive gauge bosons at √s = 13 TeV”, Phys. Rev. Lett. 125 (15), 151802 (2020)
The CMS Collaboration, “Search for direct top squark pair production in events with one lepton, jets and missing transverse energy at 13TeV with the CMS experiment”, JHEP 05, 032 (2020)
The CMS Collaboration, “Search for the production of W±W±W∓ events at √s = 13TeV”, Phys. Rev. D 100 (1), 012004 (2019)
The CMS Collaboration, “Searches for supersymmetry using the MT2 variable in hadronic events produced in pp collisions at 8 TeV”, JHEP 05, 078 (2015)
