Title: Test of the Conserved Vector Current Hypotheis in T= 1/2 Mirror Transitions and New Determination of |Vud|
Authors: Naviliat-Cuncic, Oscar * ×
Severijns, Natalis * #
Issue Date: Apr-2009
Publisher: American Physical Society
Series Title: Physical Review Letters vol:102 issue:14
Article number: 142302
Abstract: The Vud element of the Cabibbo-Kobayashi-Maskawa quark mixing matrix has traditionally been
determined from the analysis of data in nuclear superallowed 0+ -> 0+ transitions, neutron decay, and
pion beta decay. After providing a new test of the conserved vector current hypothesis, we present here a
new independent determination of |Vud| from a set of five
T = 1/2 nuclear mirror transitions. The extracted value, |Vud| = 0.9719 +/- 0.0017, is at 1.2 combined standard deviations from the value obtained from superallowed
0+ -> 0+ transitions and has a precision comparable to the value obtained from neutron decay experiments.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
* (joint) first author
× corresponding author
# (joint) last author

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