Matthew Szydagis
PhD University of Chicago (2010)
Postdoctoral Associate, University of California Davis (2010-2014)
Assistant Professor, University at Albany (2014-2020)
Associate Professor, University at Albany (2020-present)
Courses: 100, 141, 150, 240, 552/452, 477(Y), 577, 680 (seminar), 784 (colloquium)
Research Areas:
Experimental astroparticle physics, in particular direct detection of dark matter WIMPs (Weakly Interacting Massive Particles), and general detector development for rare event searches.
Research Links:
Noble Element Simulation Technique (NEST)
Current Research:
My primary activities center around the direct dark matter search experimental collaboration LZ (LUX-ZEPLIN), the current-generation, largest (multi-tonne-scale) direct dark matter search experiment. LZ is a multi-institutional, international effort. Its detection system has been deployed underground at the 4,850-foot level of the Sanford Underground Research Facility (SURF) in Lead, South Dakota, former site of the Homestake gold mine, since 2019. This experiment exists because there is an impressive array of evidence that the majority of the matter in the Universe and a significant portion of its total mass/energy content is in a form that does not emit light and is non-baryonic in nature. This dark matter points to physics beyond the Standard Model, and it can be probed in experiments deep underground on Earth, where it can scatter off nuclei, albeit rarely, with depth providing shielding against cosmic-ray backgrounds. LZ's results constitute the world’s best limits on the dark matter interaction probability across a wide range of masses. The detector technology utilized by the LZ program is the two-phase Xenon time-projection chamber (TPC), which possesses an excellent ability to detect very low-energy nuclear recoils, the type of interaction one would expect from a WIMP, which is the favored "vanilla" dark matter candidate particle possessing all of the necessary traits to be dark matter. This technology has been leading the field of direct detection since the first Xenon dark matter experiment (XENON10).
In particular, the heart of my work has involved achieving a better understanding of the physics underlying the scintillation and ionization processes in Xenon. Modelling these with Monte Carlo computer simulations is the key to being able to understand the response of a detector to both backgrounds and potential signals, so it is critical for data analysis and the final results. The benefits of a proper model are far-reaching, as detectors based on Xenon or another noble element such as Argon are common in many different fields of research, including neutrino physics and medical physics. For these reasons, my studies led me in 2011 to the creation of the NEST (Noble Element Simulation Technique) software package, which is publicly available on git hub and services the broader scientific community.
Publications: