- This event has passed.
Speaker: Michael Williams (University of Michigan) – Title: Searches for Particle Dark Matter with LZ and TESSERACT
December 5, 2023 @ 4:00 pm - 5:00 pm
Research Progress Meeting
Date: December 5, 2023
Time: 4:00- 5:00 pm
Location: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]
Speaker: Michael Williams (University of Michigan)
Title: Searches for Particle Dark Matter with LZ and TESSERACT
Abstract: The search for particle dark matter is one of the primary challenges in modern physics. Direct detection experiments typically rely on measuring signals produced when dark matter particles recoil off a detector target. In this talk, I will first discuss the LUX-ZEPLIN (LZ) experiment, which uses a dual-phase xenon time projection chamber to look for WIMP dark matter that recoils off the xenon nucleus. I will discuss LZ detector construction, first WIMP search results, and limits on effective field theory (EFT) searches of dark matter. I will then discuss the search for low-mass dark matter with TESSERACT; this encompasses interactions with two types of novel, ultra-sensitive detectors – SPICE and HeRALD. Both SPICE and HeRALD use transition edge sensors (TESs) for cryogenic readout, while using different targets: polar crystals and superfluid helium-4, respectively. I will describe the development and first measurements of new Iridium-Platinum (IrPt) TESs and the commissioning of the new HeRALD detector at LBNL.
Join Zoom Meeting
https://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09
Meeting ID: 956 7989 2182
Passcode: 169037