PPC 2022: XV International Conference on Interconnections between Particle Physics and Cosmology

Overview of nEXO neutrinoless double beta decay experiment

8 Jun 2022, 14:30

15m

Parallel

Speaker

Prakash Gautam

Description

nEXO is a next-generation 5 tonne homogeneous liquid xenon time projection chamber(TPC) which seeks to detect neutrinoless double beta decay($0\nu \beta \beta$) decay in ${}^{136}$Xe. The experiment will use the combination of scintillation and ionization signals to reconstruct events with an energy resolution of $<$1% $\sigma /E$ at the $0\nu \beta \beta$ Q-value of $2.5$MeV. It is projected to reach $0\nu \beta \beta$ half life sensitivity of $1.35\times {10}^{28}$yr in 10 years of data taking which will provide a search for lepton number violating processes with 2 orders of magnitude higher sensitivity than existing experiments.Active R&D is ongoing to optimize the design of nEXO, minimize its residual radioactivity budget and optimize novel ionization charge and scintillation light readout techniques. In this talk I will give an overview of the experiment and cover about recent R&D work by nEXO-Collaboration for nEXO design.

Presentation materials

nEXO-Overview-PPC-Prakash-Gautam-02.pdf