XXVI DAE-BRNS High Energy Physics Symposium 2024

Forecasting the Discovery Reach of Next-Generation Neutrinoless Double Beta Decay Experiments

Not scheduled

20m

Swatantrata Bhavan, Banaras Hindu University, Varanasi

Postar Neutrino Physics

Speaker

Dr Manoj Kumar Singh (Institute of Physics, Academia Sinica and Banaras Hindu University, Varanasi)

Description

Worldwide, there is significant ongoing research dedicated to the experimental search for neutrinoless double beta decay (0$\nu \beta \beta$). The reason lies in the fact that the most sensitive experimental avenue to determine if neutrinos are Majorana particles is through the search for 0$\nu \beta \beta$, which further offers insights into the absolute mass scale of neutrinos and the mechanism behind mass generation. The forthcoming 0$\nu \beta \beta$ experiments target the detection of signals within the inverted mass ordering and advancing their sensitivity into the normal ordering regimes. Prior to the execution of experiments, we undertake a quantitative assessment of the projected experimental sensitivity, focusing primarily on the discovery potentials. We analyze the sensitivity of the counting method using full Poisson statistics [1] and compare the results with those obtained from its continuous approximation. Sensitivity can be further improved by incorporating additional measurable signatures, such as energy, which is accounted for in a maximum likelihood analysis [2]. Our research highlights a practical approach for assessing the potential sensitivity of future 0$\nu \beta \beta$-projects based on their anticipated backgrounds before their execution.

References
[1] M. K. Singh et al. In: Phys. Rev. D 101 (1 2020), p. 013006.
[2] M. K. Singh et al. In: Phys. Rev. D 109 (3 2024), p. 032001.

Presentation materials

DAE-HEP-2024-ndbd-poster-MKSingh.pdf