Journal
JETP LETTERS
Volume 107, Issue 11, Pages 671-675Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0021364018110024
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Funding
- Russian Foundation for Basic Research [07-02-00077-a]
- French Ministry of Foreign Affairs (ECO-NET action) [12649SH]
- Agence Nationale de la Recherche [BLANC06-3-136829]
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We report a measurement of the neutron lifetime using ultracold 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 +/- 1.6(stat) +/- 1.0(syst)) s. A unique feature of this experiment is the monitoring of leaking neutrons providing a robust control of the main systematic loss.
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