Workshop on Xenon Detector 0νββ Searches: Steps Towards the Kilotonne Scale

Cherenkov Light Separation in LXe for Improved Background Rejection

26 Oct 2023, 16:00

7m

48/1-112C/D - Redwood C/D (SLAC)

Lightning talk Session 1/1

Speaker

Ako Jamil (Princeton University)

Description

With the development of fast sub-nanosecond photosensors and the increasing size of xenon-based detectors for neutrinoless double beta decay ($0\nu \beta \beta$) the time-of-flight difference between scintillation and Cherenkov light can be exploited for further background mitigation. This is especially crucial for the rejection of elastic scattering of solar neutrinos, which presents a major and irreducible background for a kilotonne-scale experiment. In this talk I will present some considerations for the light detection performance of a future kt-scale xenon detector searching for $0\nu \beta \beta$ based on fast GPU-based light simulations and the projected background rejection capabilities and resulting gain in sensitivity to $0\nu \beta \beta$ using the Cherenkov light separation technique.

Presentation materials

20231026 - Cherenkov Light Separation in LXe.pdf