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30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

0$\nu\beta^{-}\beta^{-}$ Sensitivity as a Function of Background and Exposure

Not scheduled
5m
Virtual Seoul

Virtual Seoul

Poster Neutrinoless double beta decay Poster

Speaker

Manoj Kumar Singh (Institute of Physics, Academia Sinica)

Description

Observation of neutrinoless double-beta decay (0$\nu\beta^{-}\beta^{-}$) would establish that neutrinos are Majorana particles (indistinguishable from their antiparticles) [1]. In spite of the formidable experimental challenges, it is an experimentally sensitive avenue to provide direct information on neutrino masses. The current work [2] would explore the required sensitivity for the upcoming projected 0$\nu\beta^{-}\beta^{-}$ experiments to probe the inverted mass hierarchy (IH) as well as non-degenerate (ND) normal mass hierarchy (NH). We studied the required exposures of 0$\nu\beta^{-}\beta^{-}$-projects as a function of the expected background (following ``Discovery Potential at 3$\sigma$ with 50% probability'' statistical scheme) before the experiments are performed. This work would address the pivotal role of background suppression in the future 0$\nu\beta^{-}\beta^{-}$ experiments with sensitivity goals of approaching and covering ND-NH.

References
[1] M. Agostini, G. Benato, J. A. Detwiler, J. Menéndez, F. Vissani, “Toward the discovery of matter creation with neutrinoless double-beta decay”, arXiv:2202.01787 (2022).
[2] M. K. Singh, H. T. Wong, L. Singh, V. Sharma, V. Singh, and Q. Yue, “Exposure-background duality in the searches of neutrinoless double beta decay”, Phys. Rev. D 101, 013006 (2020).

Collaboration Taiwan Experiment On Neutrino (TEXONO)

Primary author

Manoj Kumar Singh (Institute of Physics, Academia Sinica)

Co-author

Prof. Henry Tsz-King Wong (Institute of Physics, Academia Sinica)

Presentation Materials