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

    Francisco M Gonzalez | Oak Ridge National Laboratory
    Jin Ha Choi | North Carolina State University
    Himal Acharya | University of Kentucky
    Skylar Clymer | Arizona State University
    Andrew Hagemeier | University of Virginia
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Description

The Nab apparatus at the Fundamental Neutron Physics Beamline at the Spallation Neutron Source was designed to measure key observations in neutron beta decay, test the Standard Model's description of the weak interaction, and search for new physics. This data was collected using the Nab apparatus and are presented in the article "First Full Dalitz Plot Measurement in Neutron β-Decay using the Nab Spectrometer and Implications for New Physics." This data publication includes CSV (comma-separated values) files which are used to generate Figures 3 - 11 in the linked journal article.

Funding Information

DOE Contract Number

AC05-00OR22725; DE-SC0019309; DE-SC0008107; DE-SC0014622; DE-FG02-03ER41258; DE-FG02-97ER41042; 89233218CNA000001

Originating Research Organization

Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Other Contributing Organizations

National Science Foundation; Natural Sciences and Engineering Research Council of Canada

Sponsoring Organization

Office of Science (SC), Office of Workforce Development for Teachers & Scientists (WDTS)

Related Works

Details

DOI

https://doi.org/10.13139/ORNLNCCS/2997565

Release Date

December 8, 2025

Subject

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Keywords

neutron physics, beta decay

Dataset

Dataset Type

ND Numeric Data

Other Contract Number(s)

PHY-2213411; PHY- 2412846; PHY-2209590; PHY-0855584; PHY-2412782; PHY-2111363; PHY-1126683; NSERC-SAPPJ-2019-00043; NSERC-SAPPJ-2022-00024

Cite This Dataset:

Gonzalez, F., Choi, J., Acharya, H., Clymer, S., Hagemeier, A., Mathews, D., Mendelsohn, A., Nelsen, A., Rahangdale, H., Richburg, L., Alarcon, R., Atencio, A., Baeßler, S., Bailey, T., Birge, N., Borissenko, D., Bowler, M., Broussard, L., Bryant, A., ... Zeck, B. (2025). Dataset for First Full Dalitz Plot Measurement in Neutron β-Decay using the Nab Spectrometer and Implications for New Physics. Oak Ridge National Laboratory. https://doi.org/10.13139/ORNLNCCS/2997565.

Acknowledgements

This work was carried out [in part] at Oak Ridge National Laboratory, managed by UT-Battelle, LLC for the U.S. Department of Energy under contract DE-AC05-00OR22725.