Reconstructing the Neutrino Energy Spectrum and Setting Tensor Current Limits through Precision Measurements of <sup>8</sup>B Beta Decay

ORAL

Abstract

The beta decay of 8B is the dominant source of high-energy neutrinos produced in the Sun and is exceptionally sensitive to physics beyond the Standard Model. Preliminary results from a high-statistics experiment on 8B beta decay performed at Argonne National Laboratory using the Beta-decay Paul Trap (BPT) surrounded by four double-sided silicon strip detectors will be presented. By precisely measuring the alpha and beta particle energies from the beta decay of 8B to 8Be, which breaks up into two alpha particles, limits on the exotic tensor current contribution to the weak interaction can be determined. Additionally, the decay product kinematics can be leveraged to reconstruct the undistorted 8B neutrino energy spectrum, a vital ingredient for solar neutrino astrophysics experiments aiming to precisely measure neutrino oscillations.

*Prepared by LLNL under Contract DE-AC52-07NA27344.

–

Publication: One manuscript from this work will be submitted to PRL, another paper from this work is planned

Presenters

  • Brenden R Longfellow

    • Lawrence Livermore Natl Lab
    • NSCL Michigan State University
    • Lawrence Livermore National Laboratory

Authors

  • Brenden R Longfellow

    • Lawrence Livermore Natl Lab
    • NSCL Michigan State University
    • Lawrence Livermore National Laboratory

  • Aaron T Gallant

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Tsviki Y Hirsh

    • Soreq Nuclear Research Center
    • Soreq Nuclear Research Center, Yavne 81800, Israel
    • Soreq

  • Mary T Burkey

    • Lawrence Livermore National Laboratory

  • Guy Savard

    • Argonne National Laboratory

  • Nicolas D Scielzo

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Lab

  • Louis Varriano

    • University of Chicago

  • Maxime Brodeur

    • University of Notre Dame

  • Daniel P Burdette

    • University of Notre Dame
    • Argonne National Laboratory

  • Jason A Clark

    • Argonne National Laboratory
    • Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Daniel Lascar

    • Northwestern University

  • Peter Mueller

    • Argonne National Laboratory

  • Dwaipayan Ray

    • University of Manitoba
    • U. Manitoba

  • Kumar S Sharma

    • University of Manitoba
    • U. Manitoba

  • Adrian A Valverde

    • Argonne National Laboratory/University of Manitoba
    • University of Manitoba

  • Gemma L Wilson

    • Louisiana State University
    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA

  • Xinliang Yan

    • Argonne National Laboratory