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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.

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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