HAPPENING NOW- Tuesday Colloquium

Tue Mar 19 09:51:09 EDT 2024

From: The Ohio State University Department of Physics <scopel.6 at osu.edu>
Sent: Tuesday, March 19, 2024 9:33 AM
To: Scopel, Carly <scopel.6 at osu.edu>
Subject: HAPPENING NOW- Tuesday Colloquium

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COLLEGE OF ARTS AND SCIENCES | DEPARTMENT OF PHYSICS

Happening NOW-Spring 2024 Colloquium Series

Please join us at 10:00 AM for Colloquium with Dr. Scott Haselschwardt from Lawrence Berkeley National Laboratory.

Searching high and low for dark matter with liquid noble detectors

Abstract: Understanding the particle nature of dark matter is one of the most pressing tasks of modern science, motivating numerous theoretical dark matter candidates and experimental efforts to detect them. Chief among these are direct-detection experiments which use liquified noble gasses as their detection medium.
In this talk I will describe direct searches for weak-scale dark matter particles, highlighting the most sensitive experiment of this type to date: the LUX-ZEPLIN (LZ) experiment, which uses liquid xenon as its detection medium. I will then discuss future efforts aimed at detecting dark matter lighter than the proton. These include an LZ upgrade to dissolve hydrogen in its target volume (HydroX) and the development of a low-threshold detector based on quasiparticle excitations of a superfluid helium-4 target (HeRALD). Taken together, these experiments directly probe an extremely well-motivated class of models known as “thermal relics”: dark matter particles that were once in thermal equilibrium with ordinary matter in the early Universe.

Faculty Host: Chris Hill
Location: 4138 Physics Research Building

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Join Us for the Colloquium and Reception
Event details:

  *   Speaker: Dr. Scott Haselschwardt
  *   Reception starts at 9:45 AM, outside 4138 PRB
  *   Colloquium 10:00- 11:00 AM, 4138 Physics Research Building
Refreshments will be provided at 9:45 AM.

[Photo of exterior of Smith Seminar Room, Physics 1080. (Location of Colloquium and Reception.)]

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