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Improved limits on Fierz interference using asymmetry measurements from the Ultracold Neutron Asymmetry (UCNA) experiment

https://doi.org/10.1103/PhysRevC.101.035503

Sun, X. ; Adamek, E. ; Allgeier, B. ; Bagdasarova, Y. ; Berguno, D. B. ; Blatnik, M. ; Bowles, T. J. ; Broussard, L. J. ; Brown, M. A.-P. ; Carr, R. ; et al ( March 2020 , Physical Review C)

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Search for dark matter decay of the free neutron from the UCNA experiment: $n \to χ + e^{+} e^{-}$

https://doi.org/10.1103/PhysRevC.97.052501

Sun, X. ; Adamek, E. ; Allgeier, B. ; Blatnik, M. ; Bowles, T. J. ; Broussard, L. J. ; Brown, M. A.-P. ; Carr, R. ; Clayton, S. ; Cude-Woods, C. ; et al ( May 2018 , Physical Review C)

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New result for the neutron $β$ -asymmetry parameter $A_{0}$ from UCNA

https://doi.org/10.1103/PhysRevC.97.035505

Brown, M. A.-P. ; Dees, E. B. ; Adamek, E. ; Allgeier, B. ; Blatnik, M. ; Bowles, T. J. ; Broussard, L. J. ; Carr, R. ; Clayton, S. ; Cude-Woods, C. ; et al ( March 2018 , Physical Review C)

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Final results for the neutron β -asymmetry parameter A ₀ from the UCNA experiment

https://doi.org/10.1051/epjconf/201921904004

Plaster, B. ; Adamek, E. ; Allgeier, B. ; Anaya, J. ; Back, H.O. ; Bagdasarova, Y. ; Berguno, D.B. ; Blatnik, M. ; Boissevain, J.G. ; Bowles, T.J. ; et al ( January 2019 , EPJ Web of Conferences)

The UCNA experiment was designed to measure the neutron β-asymmetry parameter A 0 using polarized ultracold neutrons (UCN). UCN produced via downscattering in solid deuterium were polarized via transport through a 7 T magnetic field, and then directed to a 1 T solenoidal electron spectrometer, where the decay electrons were detected in electron detector packages located on the two ends of the spectrometer. A value for A 0 was then extracted from the asymmetry in the numbers of counts in the two detector packages. We summarize all of the results from the UCNA experiment, obtained during run periods in 2007, 2008–2009, 2010, and 2011–2013, which ultimately culminated in a 0.67% precision result for A 0 .

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