Measuring the beta-neutrino angular correlation in the $^6$He decay

ORAL

Abstract

We have set up an experiment to determine the electron-antineutrino correlation from $^6$He decay with the aim of searching for tensor currents in the electroweak interaction, which would constitute physics beyond the Standard Model. Our setup consists of a $^6$He production target connected to a laser cooling and magneto-optical trapping system which confines the atoms in a small region surrounded by detectors. The detection system entails a combination of a multiwire proportional chamber and scintillator (for the beta) plus an electric field guide and a microchannel plate detector (for the Li recoil ions). I will give an overview of the setup, a summary of expected systematic uncertainties, and the current status of the experiment.

*This work is supported by DOE, Office of Nuclear Physics, under contract nos. DE-AC02-06CH11357 and DE-FG02-97ER41020.

Authors

  • Yelena Bagdasarova

    • University of Washington
  • Alejandro Garicia

    • University of Washington
  • Ran Hong

    • University of Washington
  • Matthew Sternberg

    • University of Washington
  • Derek Storm

    • University of Washington
  • Erik Swanson

    • University of Washington
  • Frederik Wauters

    • University of Washington
  • David Zumwalt

    • University of Washington
  • Arnaud Leredde

    • Argonne National Lab.
  • Kevin Bailey

    • Argonne National Lab.
  • Peter Mueller

    • Argonne National Lab.
  • Thomas P. O'Connor

    • Argonne National Lab.
  • Xavier Flechard

    • LPC-Caen
  • Etienne Lienard

    • LPC-Caen
  • Oscar Naviliat-Cuncic

    • Michigan State University