# Status of the KATRIN neutrino mass experiment

## TL;DR

The KATRIN experiment aims to measure the neutrino mass with high precision using tritium beta decay, and also explores potential Lorentz violation effects within the Standard-Model Extension.

## Contribution

This paper reports on the current status and future outlook of the KATRIN experiment, including its sensitivity to neutrino mass and Lorentz-violating operators.

## Key findings

- Initial tritium run in 2018 completed
- Data collection in 2019 underway for first neutrino mass results
- Potential to detect Lorentz violation effects in beta decay spectrum

## Abstract

The KArlsruhe TRItium Neutrino (KATRIN) experiment is designed to measure tritium $\beta$-decay spectrum with enough precision to be sensitive to neutrino mass down to 0.2eV at 90$\%$ Confidence Level. After an initial first tritium run in the summer of 2018, KATRIN is taking tritium data in 2019 that should lead to a first neutrino mass result. The $\beta$ spectral shape of the tritium decay is also sensitive to four countershaded Lorentz Violating (LV), oscillation-free operators within the Standard-Model Extension that may be quite large. The status and outlook of KATRIN to produce physics results, including in the LV sector, are discussed.