Free-Neutron Beta-Decay Half-Life

Carl Jørgen Christensen, A. Nielsen, A. Bahnsen, W. K. Brown, B. M. Rustad

    Research output: Contribution to journalJournal articleResearchpeer-review


    The β-decay half-life of the free neutron was measured. Greater accuracy was obtained through the development of a special 4πβ spectrometer with a well-defined source volume and through the use of a new density calibration method with a 3He proportional counter. A clean thermal-neutron beam was developed especially for the measurement. The final result is a half-life of 10.61 ± 0.16 min. The derived value of gA/gV is -1.239 ± 0.011.
    Original languageEnglish
    JournalPhysical Review D. Particles and fields
    Issue number7
    Pages (from-to)1628-1640
    Publication statusPublished - 1972

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