학술논문

KATRIN: status and prospects for the neutrino mass and beyond
Document Type
article
Source
Journal of Physics G Nuclear and Particle Physics. 49(10)
Subject
Nuclear and Plasma Physics
Particle and High Energy Physics
Physical Sciences
neutrino
neutrino mass
sterile neutrino
tritium beta decay
krypton
beyond standard model
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Nuclear & Particles Physics
Nuclear and plasma physics
Particle and high energy physics
Language
Abstract
The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure a high-precision integral spectrum of the endpoint region of T2 β decay, with the primary goal of probing the absolute mass scale of the neutrino. After a first tritium commissioning campaign in 2018, the experiment has been regularly running since 2019, and in its first two measurement campaigns has already achieved a sub-eV sensitivity. After 1000 days of data-taking, KATRIN’s design sensitivity is 0.2 eV at the 90% confidence level. In this white paper we describe the current status of KATRIN; explore prospects for measuring the neutrino mass and other physics observables, including sterile neutrinos and other beyond-Standard-Model hypotheses; and discuss research-and-development projects that may further improve the KATRIN sensitivity.