activity
20152025
most citedMeasurement of the permanent electric dipole moment of the neutron

619 citations · 816 across the 26 of their papers we have counts for

collaborators

26 papers

physics.ins-det2025

Characterization of Low-energy Ionization Signals in Silicon Detectors for the Nab Experiment

R. J. Taylor, August Mendelsohn, Arlee Shelby +20

The Nab (Neutron a b) experiment is designed to measure the beta-antineutrino angular correlation in free neutron decay with an ultimate precision goal of 0.1%, providing input…

nucl-ex2025

First Full Dalitz Plot Measurement in Neutron -Decay using the Nab Spectrometer and Implications for New Physics

Francisco M. Gonzalez, Jin Ha Choi, Himal Acharya +89

Precision measurements of observables in neutron -decay are used to test the Standard Model description of the weak interaction and search for evidence of new physics. The Nab e…

nucl-ex2025

Backscattering Study of Electrons from 0.1 to 3.4 MeV

M. Kanafani, X. Fléchard, O. Naviliat-Cuncic +10

Benchmarking simulation codes for electron transport and scattering in matter is a crucial step for estimating uncertainties in many applications. However, experimental data for el…

physics.ins-det2025

Performance of the MORA Apparatus for Testing Time-Reversal Invariance in Nuclear Beta Decay

N. Goyal, A. Singh, S. Daumas-Tschopp +40

The MORA experimental setup is designed to measure the triple-correlation D parameter in nuclear beta decay. The D coefficient is sensitive to possible violations of time-reversal…

physics.ins-det2024

High-Precision Excited-State Nuclear Recoil Spectroscopy with Superconducting Sensors

C. Bray, S. Fretwell, L. A. Zepeda-Ruiz +30

Superconducting sensors doped with rare isotopes have recently demonstrated powerful sensing performance for sub-keV radiation from nuclear decay. Here, we report the first high-re…

nucl-ex2024

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…

nucl-ex2024

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…

nucl-ex2024

A first extraction of the weak magnetism form factor and Fierz interference term from the In Sn Gamow-Teller transition

L. De Keukeleere, D. Rozpedzik, N. Severijns +5

Spectrum shape measurements in nuclear decay can be used to test physics beyond the Standard Model with results being complementary to high-energy collider experiments. In part…

nucl-ex2023★ 1 cited

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…

nucl-ex2023★ 11 cited

Search for a neutron dark decay in He

M. Le Joubioux, H. Savajols, W. Mittig +24

Neutron dark decays have been suggested as a solution to the discrepancy between bottle and beam experiments, providing a dark matter candidate that can be searched for in halo nuc…

nucl-ex2023★ 2 cited

Fundamental Symmetries, Neutrons, and Neutrinos (FSNN): Whitepaper for the 2023 NSAC Long Range Plan

B. Acharya, C. Adams, A. A. Aleksandrova +176

This whitepaper presents the research priorities decided on by attendees of the 2022 Town Meeting for Fundamental Symmetries, Neutrons and Neutrinos, which took place December 13-1…

nucl-ex2023★ 4 cited

Nuclear decay as a probe for physics beyond the Standard Model

M. Brodeur, N. Buzinsky, M. A. Caprio +43

This white paper was submitted to the 2022 Fundamental Symmetries, Neutrons, and Neutrinos (FSNN) Town Hall Meeting in preparation for the next NSAC Long Range Plan. We advocate to…

nucl-ex2022★ 4 cited

Precision pulse shape simulation for proton detection at the Nab experiment

Leendert Hayen, Jin Ha Choi, Dustin Combs +22

The Nab experiment at Oak Ridge National Laboratory, USA, aims to measure the beta-antineutrino angular correlation following neutron decay to an anticipated precision of appro…

nucl-ex2022★ 2 cited

First observation of cyclotron radiation from MeV-scale following nuclear beta decay

W. Byron, H. Harrington, R. J. Taylor +30

We present an apparatus for detection of cyclotron radiation that allows a frequency-based beta energy determination in the 5 keV to 5 MeV range, characteristic of nuclear beta dec…

physics.ins-det2022★ 5 cited

Gas electron tracking detector for beta decay experiments

D. Rozpedzik, L. De Keukeleere, K. Bodek +4

For identification and 3D-tracking of low-energy electrons a new type of gas-based detector was designed that minimizes scattering and energy loss. The current version of the detec…

nucl-ex2022

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…

nucl-ex2022★ 8 cited

Influence of the recoil-order and radiative correction on the beta decay correlation coefficients in mirror decays

S. Vanlangendonck, N. Severijns, L. Hayen +1

Measurements of the beta decay correlation coefficients in nuclear decay aim for a precision below and theoretical predictions should follow this trend. In this work, the inf…

nucl-th2022★ 54 cited

Pion-induced radiative corrections to neutron beta-decay

Vincenzo Cirigliano, Jordy de Vries, Leendert Hayen +2

We compute the electromagnetic corrections to neutron beta decay using a low-energy hadronic effective field theory. We identify and compute new radiative corrections arising from…

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\…

physics.ins-det2021★ 9 cited

Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment

C. Abel, N. J. Ayres, G. Ban +50

Experiments dedicated to the measurement of the electric dipole moment of the neutron require outstanding control of the magnetic field uniformity. The neutron electric dipole mome…

hep-ex2020★ 619 cited

Measurement of the permanent electric dipole moment of the neutron

C. Abel, S. Afach, N. J. Ayres +81

We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magn…

physics.atom-ph2019★ 37 cited

Optically Pumped Cs Magnetometers Enabling a High-Sensitivity Search for the Neutron Electric Dipole Moment

C. Abel, S. Afach, N. J. Ayres +57

An array of sixteen laser-pumped scalar Cs magnetometers was part of the neutron electric dipole moment (nEDM) experiment taking data at the Paul Scherrer Institute in 2015 and 201…

nucl-ex2018★ 18 cited

Using Nab to determine correlations in unpolarized neutron decay

L. J. Broussard, S. Baeßler, T. L. Bailey +28

The Nab experiment will measure the ratio of the weak axial-vector and vector coupling constants with precision and search for a Fierz term $b_…

physics.ins-det2018

Multi-Wire 3D Gas Tracker for Searching New Physics in Nuclear Beta Decay

D. Rozpedzik, K. Bodek, K. Lojek +5

Searches of new physics beyond the Standard Model (SM) performed at low energy frontiers are complementary to experiments carried out at high energy colliders. Among the methods fo…