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Measurement of the Half-Life of the T=1/2 Mirror Decay of Ne-19 and its Implication on Physics Beyond the Standard Model
Physical Review Letters (2014)
  • Leah J. Broussard, University of North Carolina at Chapel Hill
  • Henning O. Back, University of North Carolina at Chapel Hill
  • Mitzi S. Boswell, University of North Carolina at Chapel Hill
  • A. S. Crowell, University of North Carolina at Chapel Hill
  • Peter Dendooven, Research unit Medical Physics
  • G. S. Giri, Fundamental Interactions and Symmetries
  • Calvin R. Howell, University of North Carolina at Chapel Hill
  • M. F. Kidd, University of North Carolina at Chapel Hill
  • Klaus Jungmann, Fundamental Interactions and Symmetries
  • Wilbert L. Kruithof, Fundamental Interactions and Symmetries
  • A. Mol, University of Groningen
  • Cornelis J. G. Onderwater, Fundamental Interactions and Symmetries
  • Robert W. Pattie, Jr., University of North Carolina at Chapel Hill
  • Praveen D. Shidling, Fundamental Interactions and Symmetries
  • M. Sohani, Fundamental Interactions and Symmetries
  • D. J. van der Hoek, Fundamental Interactions and Symmetries
  • A. Rogachevskiy, University of Groningen
  • Emil Traykov, Fundamental Interactions and Symmetries
  • Oscar O. Versolato, Fundamental Interactions and Symmetries
  • Lorenz Willmann, Fundamental Interactions and Symmetries
  • Hans W. Wilschut, Fundamental Interactions and Symmetries
  • Andrew T. Young, North Carolina State University
Abstract
The 1 2 þ → 1 2 þ superallowed mixed mirror decay of 19Ne to 19F is excellently suited for high precision studies of the weak interaction. However, there is some disagreement on the value of the half-life. In a new measurement we have determined this quantity to be T1=2 ¼ 17.2832  0.0051ðstatÞ  0.0066ðsystÞ s, which differs from the previous world average by 3 standard deviations. The impact of this measurement on limits for physics beyond the standard model such as the presence of tensor currents is discussed.
Keywords
  • Measurement,
  • Half-Life,
  • Mirror Decay,
  • Physics,
  • Standard Model
Disciplines
Publication Date
May 27, 2014
DOI
10.1103/PhysRevLett.112.212301
Publisher Statement
©2014 American Physical Society. Authors have the nonexclusive right to post the APS-prepared version of the article to an institutional repository. This document was originally published in Physical Review Letters.
Citation Information
Leah J. Broussard, Henning O. Back, Mitzi S. Boswell, A. S. Crowell, et al.. "Measurement of the Half-Life of the T=1/2 Mirror Decay of Ne-19 and its Implication on Physics Beyond the Standard Model" Physical Review Letters Vol. 112 (2014) ISSN: 0031-9007
Available at: http://works.bepress.com/robert-pattie/14/