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IDM 2018

22–27 Jul 2018
MacMillian
US/Eastern timezone

Mary Ann Rotondo

Session

2.5 Direct Detection

2.5
24 Jul 2018, 16:30
117 (MacMillian)

117

MacMillian

Brown University Providence, Rhode Island, USA

Conveners

2.5 Direct Detection

  • Philippe DiStefano

Presentation materials

There are no materials yet.

  1. 70. Background analysis in a one tonne-year dark matter search of XENON1T
    Dr Fei Gao (Columbia University)
    24/07/2018, 16:30
    Direct Detection
    Talk

    The XENON collaboration has completed a search for WIMP-nucleon Spin-Independent elastic scattering using a one tonne-year exposure of XENON1T detector. The XENON1T experiment has an electronic recoil background of ~0.2 events/(tonne-day-keVee), the lowest ever achieved in any dark matter search experiments. This talk will describe the background modeling performed in this WIMPs search analysis.

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  2. 34. First results of high voltage breakdown studies with XeBrA
    Lucie Tvrznikova (Yale/LBNL)
    24/07/2018, 16:50
    Direct Detection
    Talk

    As noble liquid time projection chambers grow in size, their high voltage requirements increase, and detailed, reproducible studies of breakdown and electroluminescence are needed to inform their design. The Xenon Breakdown Apparatus (XeBrA) is a 5-liter cryogenic apparatus designed to study high voltage behavior in noble liquids located at Lawrence Berkeley National Laboratory. This talk will...

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  3. 48. Simulations for the LUX-ZEPLIN Experiment
    Prof. Vitaly Kudryavtsev (Sheffield University)
    24/07/2018, 17:10
    Direct Detection
    Talk

    The LUX-ZEPLIN experiment will use a seven tonne dual-phase xenon TPC for the direct detection of WIMP dark matter. Backgrounds that can affect the experiment’s sensitivity must be well understood. Simulations are essential to estimate these and thus to develop effective strategies to mitigate them. They are also useful in assessing detector performance, and planning calibration and analysis...

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  4. 78. Production and high voltage testing of the LZ detector grids
    RACHEL MANNINO (University of Wisconsin-Madison)
    24/07/2018, 17:30
    Direct Detection
    Talk

    The LZ (LUX-ZEPLIN) dark matter search experiment is a liquid xenon time projection chamber (TPC) with a 7 tonne active xenon volume currently under construction. Four wire mesh grids of 1.5 m diameter establish electric fields in the detector to drift ionization electrons across the volume and extract them from the liquid surface. This presentation will discuss the design, construction,...

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  5. 97. Measurements of electron extraction efficiency and low-energy electron recoil response in a two-phase xenon time projection chamber
    Ethan Bernard (University of California, Berkeley Physics Dept.)
    24/07/2018, 17:50
    Direct Detection
    Talk

    We describe two new measurements from the PIXeY two-phase xenon time projection chamber. The extraction efficiency of quasi-free electrons from the xenon surface was measured as the field in the gas above the liquid surface was varied from 4.5 to 13.1 kV / cm. The extraction efficiency was seen to increase even at the highest fields, suggesting that the charge signals in two-phase xenon...

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  6. 67. Phase 2 Upgrades for the HAYSTAC Axion Experiment
    Kelly Backes (Yale University)
    24/07/2018, 18:10
    Direct Detection
    Talk

    The axion was first proposed as a solution to the strong CP problem, and also serves as a well-motivated dark matter candidate. HAYSTAC is a dark matter axion experiment designed to detect cosmic axions through their conversion into photons using a high $Q$ microwave cavity detector. The flexibility of HAYSTAC's platform allows for the development of new microwave cavity and amplifier concepts...

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