2026-09-01 ペンシルベニア州立大学（Penn State）
＜関連情報＞
- https://www.psu.edu/news/research/story/experiment-sees-surprising-result-search-dark-matter
- https://indico-icehap.phys.s.chiba-u.ac.jp/event/3/contributions/471/
- https://indico-icehap.phys.s.chiba-u.ac.jp/event/3/contributions/471/attachments/334/765/2026_TeVPA_SE_v3.pdf
LUX-ZEPLIN実験による高エネルギー暗黒物質相互作用の探索 Search for high-energy dark matter interactions with the LUX-ZEPLIN experiment
Primary author:Sam Eriksen
TeV Particle Astrophysics 2026 Announce:Sep 1, 2026
Description
The LUX-ZEPLIN (LZ) dark matter search experiment, a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA, has demonstrated the world’s leading sensitivity to searches for Weakly Interacting Massive Particles (WIMPs). LZ’s exceptional sensitivity enables this new search for dark matter interactions that can produce high-energy (O(100) keV) nuclear recoils, a region where LZ’s modelled backgrounds produce much less than one event in the investigated 2.84 tonne-years exposure. Through a model-agnostic non-relativistic effective field theory (NR-EFT) framework, signals arising from vector, axial, and dipole WIMP-nucleon couplings are probed. This talk will highlight the results of the most recent LZ NR-EFT analysis of nuclear recoils up to 270 keV.
