Description
Abstract:
SHIFT is a proposed fixed-target experiment at the LHC based on injecting a gas into the beam pipe upstream of the CMS detector. By exploiting these fixed-target collisions, SHIFT provides a unique environment to search for long-lived particles with displaced decays, extending the physics reach beyond the standard collider program. The experiment combines large decay volume, low backgrounds, and the powerful CMS detector capabilities to probe a broad range of new physics scenarios. In addition, SHIFT may enable studies of proton structure, heavy ions, and make the observation of neutrinos in CMS possible, making it a versatile addition to the LHC experimental landscape.
Short bio:
Jeremi Niedziela is a postdoctoral researcher at the VUB and a member of the CMS Collaboration. His work spans both precision measurements and searches for new physics, including studies of baryon–antibaryon interactions at ALICE, one of the first measurements of light-by-light scattering, precision studies of the Breit–Wheeler process, searches for disappearing tracks, and axion-like particles in top-quark events, as well as machine-learning approaches to anomalous jet detection. He is also involved in software development for the CMS High-Granularity Calorimeter, and currently focuses on the development of the SHIFT@LHC fixed-target experiment proposal.