A new project to measure the neutron lifetime using storage of ultracold neutrons and detection of inelastically scattered neutrons

摘要

We propose to measure the neutron lifetime in a complex experiment using storage of ultracold neutrons in two traps with significantly different mean free path. The trap walls are coated with a low-temperature liquid fluorine polymer. Known possible systematic false effects will be largely reduced compared to those in preceding experiments due to corresponding setup design and measuring procedure.