267 citations · 1.4k across the 53 of their papers we have counts for
25 papers · 1 filter
Measurement of the Free Neutron Lifetime in a Magneto-Gravitational Trap with In Situ Detection
R. Musedinovic, L. S. Blokland, C. B. Cude-Woods +32
Here we publish three years of data for the UCNtau experiment performed at the Los Alamos Ultra Cold Neutron Facility at the Los Alamos Neutron Science Center. These data are in ad…
An experimental search for an explanation of the difference between beam and bottle neutron lifetime measurements
M. F. Blatnik, L. S. Blokland, N. Callahan +32
The past two decades have yielded several new measurements and reanalysis of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy betw…
A novel technique of extracting UCN lifetimes from storage bottle measurements dominated by scattering losses
Prajwal Mohanmurthy, Joseph Formaggio, Daniel J. Salvat +1
Neutron lifetime is a critical parameter in the Standard Model. Its measurements using, particularly, the beamline and ultracold neutron storage techniques reveals serious tension.…
Fundamental Neutron Physics: a White Paper on Progress and Prospects in the US
R. Alarcon, A. Aleksandrova, S. Baeßler +88
Fundamental neutron physics, combining precision measurements and theory, probes particle physics at short range with reach well beyond the highest energies probed by the LHC. Sign…
Measurement of the Electron-Neutrino Charged-Current Cross Sections on I with the COHERENT NaIE detector
P. An, C. Awe, P. S. Barbeau +86
Using an 185-kg NaI[Tl] array, COHERENT has measured the inclusive electron-neutrino charged-current cross section on I with pion decay-at-rest neutrinos produced by the…
Neutrinoless Double Beta Decay
C. Adams, K. Alfonso, C. Andreoiu +229
This White Paper, prepared for the Fundamental Symmetries, Neutrons, and Neutrinos Town Meeting related to the 2023 Nuclear Physics Long Range Plan, makes the case for double beta…
Fill and dump measurement of the neutron lifetime using an asymmetric magneto-gravitational trap
C. Cude-Woods, F. M. Gonzalez, E. M. Fries +39
The past two decades have yielded several new measurements and reanalyses of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy betw…
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\…
COHERENT Collaboration data release from the first detection of coherent elastic neutrino-nucleus scattering on argon
COHERENT Collaboration, D. Akimov, J. B. Albert +80
Release of COHERENT collaboration data from the first detection of coherent elastic neutrino-nucleus scattering (CEvNS) on argon. This release corresponds with the results of "Anal…
First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon
COHERENT Collaboration, D. Akimov, J. B. Albert +80
We report the first measurement of coherent elastic neutrino-nucleus scattering (\cevns) on argon using a liquid argon detector at the Oak Ridge National Laboratory Spallation Neut…
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…
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…
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…
COHERENT Collaboration data release from the first observation of coherent elastic neutrino-nucleus scattering
COHERENT Collaboration, D. Akimov, J. B. Albert +91
This release includes data and information necessary to perform independent analyses of the COHERENT result presented in Akimov et al., arXiv:1708.01294 [nucl-ex]. Data is shared i…
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…
Search for the Neutron Decay n X+ where X is a dark matter particle
Z. Tang, M. Blatnik, L. J. Broussard +21
In a recent paper submitted to Physical Review Letters, Fornal and Grinstein have suggested that the discrepancy between two different methods of neutron lifetime measurements, the…
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…
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…
A new method for measuring the neutron lifetime using an in situ neutron detector
C. L. Morris, E. R. Adamek, L. J. Broussard +28
The neutron lifetime is important in understanding the production of light nuclei in the first minutes after the big bang and it provides basic information on the charged weak curr…
Measurement of spin-flip probabilities for ultracold neutrons interacting with nickel phosphorus coated surfaces
Z. Tang, E. R. Adamek, A. Brandt +12
We report a measurement of the spin-flip probabilities for ultracold neutrons interacting with surfaces coated with nickel phosphorus. For 50~m thick nickel phosphorus coated on…
Determination of the Free Neutron Lifetime
J. David Bowman, L. J. Broussard, S. M. Clayton +24
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…
Investigating solid N as a new source of ultra-cold neutrons
D. J. Salvat, E. Gutsmiedl, C. -Y. Liu +4
The dynamical structure factor of solid N in the phase (K) is measured at the IN4 time-of-flight spectrometer at the Institut Laue Langevin, and the potentia…
Measurements of ultracold neutron upscattering and absorption in polyethylene and vanadium
E. I. Sharapov, C. L. Morris, M. Makela +27
The study of neutron cross sections for elements used as efficient ``absorbers'' of ultracold neutrons (UCN) is crucial for many precision experiments in nuclear and particle physi…
Understanding Ultracold Neutron Production in Oxygen Solids from Volume and Temperature Dependent Yields
C. -Y. Liu, C. M. Lavelle, D. J. Salvat +5
We present experimental data on ultracold neutron (UCN) production in solid oxygen from 5 K to 50 K. The experiment used 3 cells of different dimensions in order to study the exces…