English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report a systematic study on the directional sensitivity of a direct darkmatter detector that detects the polar angle of a recoiling nucleus. A weaklyinteracting massive particle (WIMP)-mass independent method is used to obtainthe sensitivity of a general detector in an isothermal galactic dark matterhalo. By using two-dimensional distributions of energy and polar angle, adetector without head-tail information with 6.3 times the statistics is foundto achieve the same performance level as a full three-dimensional tracking darkmatter detector. Optimum operation orientations are obtained for variousexperimental configurations, with detectors that are space- or Earth-fixed,have head-tail capability or not, and use energy information or not.Earth-fixed detectors are found to have best sensitivity when the polar axis isoriented at a 45 degree angle from the Earth's pole. With backgroundcontamination that mimics the WIMP signal's energy distribution, theperformance is found to decrease at a rate less than the decrease of signalpurity. The WIMP-mass dependence of the performance of a detector with variousenergy thresholds that uses gaseous xenon as target material is reported. Wefind that with a $5\times 10^{-46} \mathrm{cm}^2$ spin-independent WIMP-nucleoncross-section and a 30 GeV WIMP, a $770$ kg$\cdot$year's exposure with a polardetector of 10 keV threshold can make a three sigma discovery of directionalWIMPs in the isothermal galactic dark matter halo. For a columnar recombinationdetector, experimental considerations are discussed.

Directional dark matter by polar angle direct detection and application of columnar recombination