Determination of the Free Neutron Lifetime

J. David Bowman, Leah J. Broussard, Stephen M. Clayton, M. S. Dewey, Nadia Fomin, Keith B. Grammer, G. L. Greene, Paul R. Huffman, Anthony T. Holley, Geoffrey L. Jones, ChenYu Liu, Mark Makela, Michael P. Mendenhall, Charles L. Morris, Jonathan Mulholland, K. M. Nollett, Robert W. Pattie, Seppo Penttila, M. Ramsey-Musolf, Daniel J. SalvatAndy Saunders, Susan J. Seestrom, William M. Snow, A. Steyerl, F. E. Wietfeldt, Albert R. Young, Andrew T. Yue

Research output: Contribution to journalArticlepeer-review

Abstract

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.
Original languageAmerican English
JournalarXiv: Nuclear Experiment
StatePublished - Oct 20 2014
Externally publishedYes

Keywords

  • Determination
  • Free Neutron
  • Lifetime

Disciplines

  • Physics
  • Elementary Particles and Fields and String Theory

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