LZ Backgrounds and Mitigation

25 Jul 2017, 16:15
15m
LOWER FRASER FA054

LOWER FRASER FA054

Contributed talk Dark Matter Dark Matter

Speaker

Dr Christina Ignarra (SLAC National Accelerator Laboratory)

Description

LZ will be a 10 ton dual-phase xenon Time Projection Chamber (TPC) searching for WIMP dark matter via direct detection. In order to achieve our desired sensitivity, we require an extremely radiopure environment. Gamma backgrounds originate outside of the bulk xenon and are mitigated by xenon’s self-shielding properties, as well as our position reconstruction and veto capabilities. More challenging are Kr-85 and Rn-222 because they are dissolved throughout the active region. This talk will comprehensively address our plans to reduce and mitigate backgrounds throughout construction, operation, and analysis.

Primary author

Dr Christina Ignarra (SLAC National Accelerator Laboratory)

Presentation materials