Abstract:
The existence of dark matter is one of the most intriguing phenomena in modern astronomy and cosmology. However the nature of dark matter remains unclear so far. The most commonly accepted hypothesis is that dark matter is a beyond-standard particle which, besides gravitational interactions, weakly interacts with baryonic matters. The XENON1T experiment, which uses dual-phase time projection chamber with 2-tonne ultra-pure liquid xenon deployed as target, has reported the most sensitive search for dark matter using data collected since Dec. 2016. This talk gives the analysis and results from this most sensitive dark matter search with XENON1T, together with an outlook of the future upgraded XENONnT experiment which will start commissioning in late 2019.