Measurement of the neutron lifetime with ultra-cold neutrons stored in a magneto-gravitational trap

Abstract

We report a new measurement of the neutron lifetime using ultra-cold neutrons stored in a magneto-gravitational trap made of permanent magnets. Neutrons surviving in the trap after fixed storage times have been counted and the trap losses have continuously been monitored during storage by detecting neutrons leaking from the trap. The value of the neutron lifetime resulting from this measurement is ${\tau }_n=(878.3\pm 1.9)$s. It is the most precise measurement of the neutron lifetime obtained with magnetically stored neutrons.

arXiv comment4 pages, 3 figures

Cited by in corpus (10)

• Measurement of the neutron lifetime using an asymmetric magneto- gravitational trap and in situ detection
• Neutron lifetime measurements with the big gravitational trap for ultracold neutrons
• Search for explanation of the neutron lifetime anomaly
• On the Neutron Transition Magnetic Moment
• Detection System for Neutron $\beta$ Decay Correlations in the UCNB and Nab experiments
• Neutron lifetime, dark matter and search for sterile neutrino
• Experiments with ultracold neutrons - first 50 years
• The possible explanation of neutron lifetime beam anomaly
• Neutron lifetime beam anomaly and possible explanation
• Ultracold neutron accumulation in a superfluid-helium converter with magnetic multipole reflector