About
Professor Lorenzon works in unpolarized and polarized hadronic physics as a member of the SeaQuest and SpinQuest collaborations at Fermilab. He has served as a Deputy Spokesman for HERMES from 1997-1998. For the SeaQuest experiment, he has built the cryogenic targets and studied the antiquark distribution in the nucleon sea to gain a better understanding of the model that describes nucleons. He was instrumental in establishing a polarized Drell-Yan program at Fermilab to study the spin structure of the proton with experiment E-1039.
One of his main efforts is his work on Dark Matter direct detection. He participated in the PandaX experiment in China for several years before joining the LZ Dark Matter experiment at the SURF laboratory in South Dakota in 2015. The LZ detector is the most ambitious and most advanced Dark Matter direct detection experiment, designed to observe WIMPs with a 10-ton liquid xenon detector. It started collecting data in late 2021 and is expected to run until 2028. For LZ, he is responsible for the in-line radon removal system for the central time-projection chamber which helps to increase the science reach of the LZ detector.
Professor Lorenzon is also a core member of the MUSE experiment at the PSI laboratory in Switzerland. The MUSE experiment aims to resolve the large discrepancies of the proton charge radius measurements made with muonic hydrogen and electron-proton scattering. For MUSE, he is providing the liquid hydrogen target which builds on the expertise the group has gained over the past years. Data collection started in 2022 and is expected to conclude by the end of 2025.
Professor Lorenzon is a Fellow of the American Physical Society.
Selected Publications
The asymmetry of antimatter in the proton (J. Dove et al., SeaQuest Collaboration), Nature 590, 561 (2021).
Dark Matter Results from First 98.7-day Data of PandaX-II Experiment (A. Tan et al., PandaX Collaboration), Phys. Rev. Lett. 117, 121303 (2016).
First dark matter search results from the LUX-ZEPLIN (LZ) experiment, (J. Aalbers et al,. LZ Collaboration), Phys. Rev. Lett. 131, 041002 (2023).
Precise Determination of the Spin Structure Function g_1 of the Proton, Deuteron, and Neutron, (A. Airapetian et al., HERMES Collaboration), Phys. Rev. D75, 012007 (2007).
Single-Spin Asymmetries in Semi-Inclusive Deep-Inelastic Scattering on a Transversely-Polarized Hydrogen Target, (A. Airapetian et al., HERMES Collaboration), Phys. Rev. Lett. 94, 012002 (2005).
A Liquid Hydrogen Target for the MUSE Experiment at PSI (P. Roy et al), Nucl. Instr. Meth. A949, 162874 (2020).
Field(s) of Study
- Subatomic Physics and Astrophysics Experiments
