A directional Dark Matter argon detector at LNGS

6th Young Researcher Meeting, L'Aquila 2015

Cadeddu, Matteo^1,2

Dipartimento di Fisica, Università Degli Studi di Cagliari, Monserrato

09042, Italy^1

INFN - Sezione di Cagliari, Italy^2

关键词: Angular resolution;    Dark matter;    Dark matter detectors;    Directional detector;    Directional information;    Dual phase;    Real time;    Time projection chambers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/689/1/012015/pdf
DOI  :  10.1088/1742-6596/689/1/012015

来源: IOP

【 摘 要 】

The potentialities of an argon Dark Matter detector with real-time directional information located at Laboratori Nazionali del Gran Sasso are discussed. Columnar recombination combined with a dual-phase Liquid Argon Time Projection Chamber provides a concrete approach for a directional detector. Even in the case of a minimal angular resolution, a very clear signature of WIMP scattering on target nuclei is shown to be expected. Indeed, the ratio of horizontal to vertical events changes by a factor of four during the day and has a characteristic sidereal-day periodicity.