# A New Sensitivity Goal for Neutrino-less Double Beta Decay Experiments

## TL;DR

This paper explores how the Dark-LMA solution impacts the sensitivity goals for future neutrino-less double beta decay experiments, especially under normal mass ordering, suggesting higher detection thresholds.

## Contribution

It introduces a new sensitivity target for $0
uetaeta$ experiments based on Dark-LMA parameters, highlighting the shift in effective mass predictions for normal ordering.

## Key findings

- Effective mass for inverted ordering remains unchanged.
- Effective mass for normal ordering increases in Dark-LMA scenario.
- Sets new sensitivity goals for upcoming experiments.

## Abstract

We study the implications of the Dark-LMA solution to the solar neutrino problem for neutrino-less double beta decay ($0\nu\beta\beta$ ). We show that while the predictions for the effective mass governing $0\nu\beta\beta$ remains unchanged for the inverted mass scheme, that for normal ordering becomes higher for the Dark-LMA parameter space and moves into the "desert region" between the two. This sets a new goal for sensitvity reach for the next generation experiments if no signal is found for the inverted ordering by the future search programmes.