Determination of the Free Neutron Lifetime

J David Bowman,L J Broussard,S M Clayton,M S Dewey,N Fomin,K B Grammer,Geoffrey L Greene, P R Huffman,A T Holley,G L Jones,C Y Liu,M Makela, M P Mendenhall,C L Morris, John Mulholland,Kenneth M Nollett,R W Pattie,S I Penttila,Michael J Ramseymusolf, D J Salvat,A Saunders, S J Seestrom,W M Snow, A Steyerl,Fred E Wietfeldt,A R Young,A T Yue

mag（2014）

引用 23|浏览76

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摘要

We present the status of current US experimental efforts to measure the lifetime of the free neutron by the "beam" and "bottle" methods. BBN nucleosynthesis models require accurate measurements with 1 second uncertainties, which are currently feasible. For tests of physics beyond the standard model, future efforts will need to achieve uncertainties well below 1 second. We outline paths achieve both.

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