Data analysis of 1 tonne-year dark matter search run with the XENON1T experiment.

Di Gangi P. per la Collaborazione XENON

III - Astrofisica
Aula 32B-3 - Venerdì 21 h 15:30 - 18:30
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The XENON1T experiment is the first tonne-scale dual-phase TPC aiming at direct detection of dark matter. It is located in the underground Gran Sasso National Laboratory, Italy, and with an active target mass of $\sim 2$ tonnes (3.2 tonnes in total) of liquid xenon (LXe) it achieved the current best sensitivity to Weakly Interacting Massive Particles (WIMPs) among dark matter experiments. The combined data analysis of the first two XENON1T scientific runs, for a total livetime of 278.8 days, will be presented. The analysis is performed in an inner fiducial volume of 1.3 tonnes of LXe for a 0.99 tonne-year exposure and in the low energy region of $\sim [3,30]$ keV${}_{er}$. The statistical inference on the spin-independent WIMP-nucleon cross-section is performed with a profile likelihood analysis parameterized in both spatial and energy spaces.

Società Italiana di Fisica - Via Saragozza 12 40123 Bologna P.IVA 00308310374 | credits