Measurement of the Neutron Lifetime Using a Gravitational Trap and a Low-Temperature Fomblin Coating

Measurement of the Neutron Lifetime Using a Gravitational Trap and a Low-Temperature Fomblin Coating

We present a new value for the neutron lifetime of 878.5 ± 0.7stat. ± 0.3syst. This result differs from the world average value by 6.5 standard deviations and by 5.6 standard deviations from the previous most precise result. However, this new value for the neutron lifetime together with a β-asymmetr...

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Veröffentlicht in:Journal of research of the National Institute of Standards and Technology 2005-07, Vol.110 (4), p.333-338
Hauptverfasser: Serebrov, A, Varlamov, V, Kharitonov, A, Fomin, A, Pokotilovski, Yu, Geltenbort, P, Butterworth, J, Krasnoschekova, I, Lasakov, M, Tal'daev, R, Vassiljev, A, Zherebtsov, O
Format: Artikel
Sprache:eng
Schlagworte:
Beta decay
Gravity
Lifetime
Measurement
Neutrons
Nuclear reactors
Physics
Standard deviation
Temperature
Thermal properties
Trapping
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Zusammenfassung:We present a new value for the neutron lifetime of 878.5 ± 0.7stat. ± 0.3syst. This result differs from the world average value by 6.5 standard deviations and by 5.6 standard deviations from the previous most precise result. However, this new value for the neutron lifetime together with a β-asymmetry in neutron decay, A 0, of -0.1189(7) is in a good agreement with the Standard Model.
ISSN:1044-677X
2165-7254
DOI:10.6028/jres.110.049