Measurement of the Neutron Lifetime by Counting Trapped Protons

We measured the neutron decay lifetime by counting in-beam neutron decay recoil protons trapped in a quasi-Penning trap. The absolute neutron beam fluence was measured by capture in a thin (6)LiF foil detector with known efficiency. The combination of these measurements gives the neutron lifetime: τ...

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Detalles Bibliográficos
Autores principales: Wietfeldt, F. E., Dewey, M. S., Gilliam, D. M., Nico, J. S., Fei, X., Snow, W. M., Greene, G. L., Pauwels, J., Eykens, R., Lamberty, A., Van Gestel, J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2005
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4852842/
https://www.ncbi.nlm.nih.gov/pubmed/27308145
http://dx.doi.org/10.6028/jres.110.048
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author Wietfeldt, F. E.
Dewey, M. S.
Gilliam, D. M.
Nico, J. S.
Fei, X.
Snow, W. M.
Greene, G. L.
Pauwels, J.
Eykens, R.
Lamberty, A.
Van Gestel, J.
author_facet Wietfeldt, F. E.
Dewey, M. S.
Gilliam, D. M.
Nico, J. S.
Fei, X.
Snow, W. M.
Greene, G. L.
Pauwels, J.
Eykens, R.
Lamberty, A.
Van Gestel, J.
author_sort Wietfeldt, F. E.
collection PubMed
description We measured the neutron decay lifetime by counting in-beam neutron decay recoil protons trapped in a quasi-Penning trap. The absolute neutron beam fluence was measured by capture in a thin (6)LiF foil detector with known efficiency. The combination of these measurements gives the neutron lifetime: τ(n) = (886.8 ± 1.2 ± 3.2) s, where the first (second) uncertainty is statistical (systematic) in nature. This is the most precise neutron lifetime determination to date using an in-beam method.
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spelling pubmed-48528422016-06-15 Measurement of the Neutron Lifetime by Counting Trapped Protons Wietfeldt, F. E. Dewey, M. S. Gilliam, D. M. Nico, J. S. Fei, X. Snow, W. M. Greene, G. L. Pauwels, J. Eykens, R. Lamberty, A. Van Gestel, J. J Res Natl Inst Stand Technol Article We measured the neutron decay lifetime by counting in-beam neutron decay recoil protons trapped in a quasi-Penning trap. The absolute neutron beam fluence was measured by capture in a thin (6)LiF foil detector with known efficiency. The combination of these measurements gives the neutron lifetime: τ(n) = (886.8 ± 1.2 ± 3.2) s, where the first (second) uncertainty is statistical (systematic) in nature. This is the most precise neutron lifetime determination to date using an in-beam method. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2005 2005-08-01 /pmc/articles/PMC4852842/ /pubmed/27308145 http://dx.doi.org/10.6028/jres.110.048 Text en https://creativecommons.org/publicdomain/zero/1.0/ The Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.
spellingShingle Article
Wietfeldt, F. E.
Dewey, M. S.
Gilliam, D. M.
Nico, J. S.
Fei, X.
Snow, W. M.
Greene, G. L.
Pauwels, J.
Eykens, R.
Lamberty, A.
Van Gestel, J.
Measurement of the Neutron Lifetime by Counting Trapped Protons
title Measurement of the Neutron Lifetime by Counting Trapped Protons
title_full Measurement of the Neutron Lifetime by Counting Trapped Protons
title_fullStr Measurement of the Neutron Lifetime by Counting Trapped Protons
title_full_unstemmed Measurement of the Neutron Lifetime by Counting Trapped Protons
title_short Measurement of the Neutron Lifetime by Counting Trapped Protons
title_sort measurement of the neutron lifetime by counting trapped protons
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4852842/
https://www.ncbi.nlm.nih.gov/pubmed/27308145
http://dx.doi.org/10.6028/jres.110.048
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