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Neutron polarimetry using a polarized 3He cell for the aCORN experiment

https://doi.org/10.1016/j.nima.2020.164862

Schafer, B.C. ; Byron, W.A. ; Chen, W.C. ; Collett, B. ; Dewey, M.S. ; Gentile, T.R. ; Hassan, Md.T. ; Jones, G.L. ; Komives, A. ; Wietfeldt, F.E. ( February 2021 , Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment)

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Measurement of the neutron decay electron-antineutrino angular correlation by the aCORN experiment

https://doi.org/10.1103/PhysRevC.103.045502

Hassan, M. T. ; Byron, W. A. ; Darius, G. ; DeAngelis, C. ; Wietfeldt, F. E. ; Collett, B. ; Jones, G. L. ; Komives, A. ; Noid, G. ; Stephenson, E. J. ; et al ( April 2021 , Physical Review C)

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Improved Neutron Lifetime Measurement with $UCN τ$

https://doi.org/10.1103/PhysRevLett.127.162501

Gonzalez, F. M. ; Fries, E. M. ; Cude-Woods, C. ; Bailey, T. ; Blatnik, M. ; Broussard, L. J. ; Callahan, N. B. ; Choi, J. H. ; Clayton, S. M. ; Currie, S. A. ; et al ( October 2021 , Physical Review Letters)

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The aCORN backscatter-suppressed beta spectrometer

https://doi.org/10.1016/j.nima.2017.05.029

Hassan, M.T. ; Bateman, F. ; Collett, B. ; Darius, G. ; DeAngelis, C. ; Dewey, M.S. ; Jones, G.L. ; Komives, A. ; Laptev, A. ; Mendenhall, M.P. ; et al ( September 2017 , Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment)

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Monte Carlo simulations of trapped ultracold neutrons in the $UCN τ$ experiment

https://doi.org/10.1103/PhysRevC.100.015501

Callahan, Nathan ; Liu, Chen-Yu ; Gonzalez, Francisco ; Adamek, E. ; Bowman, J. D. ; Broussard, L. ; Clayton, S. M. ; Currie, S. ; Cude-Woods, C. ; Dees, E. B. ; et al ( July 2019 , Physical Review C)

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Measurement of the Electron-Antineutrino Angular Correlation in Neutron $β$ Decay

https://doi.org/10.1103/PhysRevLett.119.042502

Darius, G. ; Byron, W. A. ; DeAngelis, C. R. ; Hassan, M. T. ; Wietfeldt, F. E. ; Collett, B. ; Jones, G. L. ; Dewey, M. S. ; Mendenhall, M. P. ; Nico, J. S. ; et al ( July 2017 , Physical Review Letters)

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Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection

https://doi.org/10.1126

Pattie, R.W. ; Callahan, N.B. ; Cude-Woods, C. ; Adamek, E.R. ; Broussard, L.J. ; Clayton, S.M. ; Currie, S.A. ; Dees, E.B. ; Ding, X. ; Engel, E.M. ; et al ( May 2018 , Science)

The precise value of the mean neutron lifetime, tau_n, plays an important role in nuclear and particle physics and cosmology. It is used to predict the ratio of protons to helium atoms in the primordial universe and to search for physics beyond the Standard Model of particle physics. We eliminated loss mechanisms present in previous trap experiments by levitating polarized ultracold neutrons above the surface of an asymmetric storage trap using a repulsive magnetic field gradient so that the stored neutrons do not interact with material trap walls. As a result of this approach and the use of an in situ neutron detector, the lifetime reported here [877.7 +/- 0.7 (stat) +0.4/-0.2 (sys) seconds] does not require corrections larger than the quoted uncertainties.

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Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection

https://doi.org/10.1126/science.aan8895

Pattie, R. W. ; Callahan, N. B. ; Cude-Woods, C. ; Adamek, E. R. ; Broussard, L. J. ; Clayton, S. M. ; Currie, S. A. ; Dees, E. B. ; Ding, X. ; Engel, E. M. ; et al ( May 2018 , Science)

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A new method for measuring the neutron lifetime using an in situ neutron detector

https://doi.org/10.1063/1.4983578

Morris, C. L. ; Adamek, E. R. ; Broussard, L. J. ; Callahan, N. B. ; Clayton, S. M. ; Cude-Woods, C. ; Currie, S. A. ; Ding, X. ; Fox, W. ; Hickerson, K. P. ; et al ( May 2017 , Review of Scientific Instruments)

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aCORN: An experiment to measure the electron-antineutrino correlation coefficient in free neutron decay

https://doi.org/10.1063/1.4996542

Collett, B. ; Bateman, F. ; Bauder, W. K. ; Byrne, J. ; Byron, W. A. ; Chen, W. ; Darius, G. ; DeAngelis, C. ; Dewey, M. S. ; Gentile, T. R. ; et al ( August 2017 , Review of Scientific Instruments)

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