A revised value for the neutron lifetime measured using a Penning trap

Author： Byrne J.   Dawber P. G.   Habeck C. G.   Smidt S. J.   Spain J. A.   Williams A. P.  

Publisher： Edp Sciences

E-ISSN： 1286-4854|33|3|187-192

ISSN： 0295-5075

Source： EPL (EUROPHYSICS LETTERS), Vol.33, Iss.3, 2010-03, pp. : 187-192

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Abstract

We have re-evaluated the results of the neutron lifetime experiment based onstorage of decay protons in a Penning trap. Combining improved statisticaltreatment of the data with precise measurements of the magnetic-fielddistribution in the trap, we arrive at a revised value $\rm \tau _{\rm n}=889.2\pm 4.8\;s$.

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