31st International Seminar on Interaction of Neutrons with Nuclei: Fundamental Interactions & Neutrons, Nuclear Structure, Ultracold Neutrons, Related Topics (ISINN-31)

A New Scheme of Space-Based Measurement of Neutron Lifetime

27 May 2025, 09:00

20m

Room V6 (4th floor)

Parallel session 1 Parallel Session 1: Fundamental interactions & symmetries in neutron induced reactions/Properties of compound states, nuclear structure/Intermediate and fast neutron induced reactions/Nuclear fission

Speaker

Xiaopeng Zhou

Description

How long neutrons survive plays a key role in particle physics and cosmology. However, conflicting results with a deviation of about 9 second have been found over years in neutron lifetime measurements. Different ideas have been proposed to solve such deviations. We proposed a new scheme based on CubeSat to determine neutron lifetime. In this talk, after a short overview on the lifetime puzzle, I will show the principle of our proposed measurement, the challenges and also the progress in payload development.

Presentation materials

20250526-ISINN31-zxp(2).pptx