Journal
PHYSICAL REVIEW C
Volume 82, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.82.035501
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Funding
- Russian Foundation for Basic Research [07-02-00859-a, 08-02-01052-a, 10-02-00217-a, 10-02-00224-a]
- Federal Agency of Education [P2427, P2500, P2540]
- Federal Agency of Science and Innovations [02.740.11.0532]
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An analysis of data on measurements of neutron lifetime is presented. The new most accurate result of the measurement of neutron lifetime [Phys. Lett. B 605, 72 (2005)] 878.5 +/- 0.8 s, differs from the world average value [Phys. Lett. B 667, 1 (2008)] 885.7 +/- 0.8 s, by 6.5 standard deviations. In this connection an analysis and Monte Carlo simulation of experiments [Phys. Lett. B 483, 15 (2000)] and [Phys. Rev. Lett. 63, 593 (1989)] is carried out. Systematic errors of about -6 s are found in each of the experiments. A summary table of neutron lifetime measurements after corrections and additions is given. A new world average value for neutron lifetime, 879.9 +/- 0.9 s, is presented.
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