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Superallowed Nuclear Beta Decay: A Window on the Weak Interaction

AIP Conf. Proc. -- January 24, 2008 -- Volume 972, pp. 119-127
EXOTIC NUCLEI AND NUCLEAR/PARTICLE ASTROPHYSICS (II): Proceedings of the Carpathian Summer School of Physics 2007; doi:10.1063/1.2870273

Issue Date: 24 January 2008

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J. C. Hardy
Cyclotron Institute, Texas A&M University, College Station, TX, 77843, USA
Measurements on superallowed 0+-->0+ nuclear beta transitions currently provide the most demanding test of the Conserved Vector Current (CVC) hypothesis and the most precise value for the up-down element, Vud, of the Cabibbo-Kobayashi-Maskawa (CKM) matrix. Both are sensitive probes for physics beyond the Standard Model. Analysis of the experimental results depends on small radiative and isospin-symmetry-breaking corrections whose uncertainties now dominate those from experiment. Recent experiments have been focusing on tests of these corrections with a view to reducing their uncertainties. An overview is presented together with a description of measurements at Texas A&M on the superallowed decay of 34Ar. ©2008 American Institute of Physics
Permalink: http://link.aip.org/link/?APCPCS/972/119/1
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KEYWORDS and PACS

Keywords
PACS
  • 23.40.-s
    β decay; double β decay; electron and muon capture
  • 12.15.Hh
    Determination of electroweak Kobayashi-Maskawa matrix elements
  • 12.60.-i
    Models beyond the standard model
  • 11.30.Qc
    Spontaneous and radiative symmetry breaking in particles and fields
  • YEAR: 2008

PUBLICATION DATA

ISSN:
0094-243X (print)  
Publisher:
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