activity
20132022
most citedMeasurement of the neutron lifetime using an asymmetric magneto- gravitational trap and in situ detection

174 citations · 636 across the 16 of their papers we have counts for

collaborators

16 papers

physics.ins-det2022★ 1 cited

Correcting Aberrations of a Transverse-Field Neutron Resonance Spin Echo Instrument

Stephen J. Kuhn, Sam McKay, Fankang Li +5

The neutron resonance spin echo (NRSE) technique has the potential to increase the Fourier time and energy resolution in neutron scattering by using radio-frequency (rf) neutron sp…

nucl-ex2021★ 2 cited

Improved neutron lifetime measurement with UCN

F. M. Gonzalez, E. M. Fries, C. Cude-Woods +41

We report an improved measurement of the free neutron lifetime using the UCN apparatus at the Los Alamos Neutron Science Center. We counted a total of approximately $38\…

quant-ph2020★ 18 cited

Neutron State Entanglement with Overlapping Paths

S. J. Kuhn, S. McKay, J. Shen +12

The development of direct probes of entanglement is integral to the rapidly expanding field of complex quantum materials. Here we test the robustness of entangled neutrons as a qua…

nucl-ex2019★ 31 cited

Improved limits on Fierz Interference using asymmetry measurements from the UCNA experiment

Xuan Sun, E. Adamek, B. Allgeier +56

The Ultracold Neutron Asymmetry (UCNA) experiment was designed to measure the -decay asymmetry parameter, , for free neutron decay. In the experiment, polarized ultracold n…

nucl-ex2019★ 5 cited

Final results for the neutron -asymmetry parameter from the UCNA experiment

B. Plaster, E. Adamek, B. Allgeier +91

The UCNA experiment was designed to measure the neutron -asymmetry parameter using polarized ultracold neutrons (UCN). UCN produced via downscattering in solid deuterium w…

physics.ins-det2018★ 8 cited

Monte Carlo Simulations of Trapped Ultracold Neutrons in the UCNτ Experiment

Nathan Callahan, Chen-Yu Liu, Francisco Gonzalez +37

In the UCNτ experiment, ultracold neutrons (UCN) are confined by magnetic fields and the Earth's gravitational field. Field-trapping mitigates the problem of UCN loss on material s…

nucl-ex2018★ 1 cited

Measurement of the neutron lifetime using a magneto-gravitational trap

Nathan Callahan

Precision measurements of the free neutron lifetime , when combined with measurements of the axial vector form factor, can be used to test unitarity of the CKM matrix. Non-uni…

nucl-ex2018★ 50 cited

Search for dark matter decay of the free neutron from the UCNA experiment: n

X. Sun, E. Adamek, B. Allgeier +57

It has been proposed recently that a previously unobserved neutron decay branch to a dark matter particle () could account for the discrepancy in the neutron lifetime observed i…

nucl-ex2017★ 97 cited

New result for the neutron -asymmetry parameter from UCNA

M. A. -P. Brown, E. B. Dees, E. Adamek +56

The neutron -decay asymmetry parameter defines the correlation between the spin of the neutron and the momentum of the emitted electron, which determines $λ=\frac{g_{A}}{g…

nucl-ex2017★ 174 cited

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

R. W. Pattie, N. B. Callahan, C. Cude-Woods +35

The precise value of the mean neutron lifetime, , plays an important role in nuclear and particle physics and cosmology. It is a key input for predicting the ratio of protons…

physics.ins-det2016★ 15 cited

Detection System for Neutron Decay Correlations in the UCNB and Nab experiments

L. J. Broussard, B. A. Zeck, E. R. Adamek +51

We describe a detection system designed for precise measurements of angular correlations in neutron decay. The system is based on thick, large area, highly segmented silicon de…

physics.ins-det2016★ 5 cited

Position-sensitive detection of ultracold neutrons with an imaging camera and its implications to spectroscopy

Wanchun Wei, L. J. Broussard, M. A. Hoffbauer +29

Position-sensitive detection of ultracold neutrons (UCNs) is demonstrated using an imaging charge-coupled device (CCD) camera. A spatial resolution less than 15 m has been achie…

physics.ins-det2015★ 26 cited

A multilayer surface detector for ultracold neutrons

Zhehui Wang, M. A. Hoffbauer, C. L. Morris +33

A multilayer surface detector for ultracold neutrons (UCNs) is described. The top B layer is exposed to the vacuum chamber and directly captures UCNs. The ZnS:Ag layer benea…

hep-ex2014★ 156 cited

Neutron-Antineutron Oscillations: Theoretical Status and Experimental Prospects

D. G. Phillips, W. M. Snow, K. Babu +60

This paper summarizes the relevant theoretical developments, outlines some ideas to improve experimental searches for free neutron-antineutron oscillations, and suggests avenues fo…

hep-ex2013★ 17 cited

Neutron-Antineutron Oscillations: A Snowmass 2013 White Paper

K. Babu, S. Banerjee, D. V. Baxter +69

This paper summarizes discussions of the theoretical developments and the studies performed by the NNbarX collaboration for the 2013 Snowmass Community Summer Study.

physics.ins-det2013★ 30 cited

Storage of ultracold neutrons in the UCN magneto-gravitational trap

D. J. Salvat, E. R. Adamek, D. Barlow +29

The UCN experiment is designed to measure the lifetime of the free neutron by trapping ultracold neutrons (UCN) in a magneto-gravitational trap. An asymmetric bowl-shape…