Measurement of the neutron lifetime using a gravitational trap and a low-temperature Fomblin coating

A. Serebrov, V. Varlamov, A. Kharitonov +9

We present a new value for the neutron lifetime of 878.5 +- 0.7 stat. +- 0.3 syst. This result differs from the world average value (885.7 +- 0.8 s) by 6.5 standard deviations and…