Pith. sign in

REVIEW

Q_EC values of the Superallowed beta Emitters 50Mn and 54Co

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 0712.3463 v1 pith:IJ7J4TAO submitted 2007-12-20 nucl-ex

Q_EC values of the Superallowed beta Emitters 50Mn and 54Co

T. Eronen , V.-V. Elomaa , U. Hager , J. Hakala , J. C. Hardy , A. Jokinen , A. Kankainen , I. D. Moore
show 8 more authors
H. Penttila S. Rahaman S. Rinta-Antila J. Rissanen A. Saastamoinen T. Sonoda C. Weber J. Aysto
This is my paper
classification nucl-ex
keywords valuesresultssuperallowedacceptedbetabeta-decaybeta-emitterscabibbo-kobayashi-maskawa
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

Using a new fast cleaning procedure to prepare isomerically pure ion samples, we have measured the beta-decay Q_EC values of the superallowed beta-emitters 50Mn and 54Co to be 7634.48(7) keV and 8244.54(10) keV, respectively, results which differ significantly from the previously accepted values. The corrected Ft values derived from our results strongly support new isospin-symmetry-breaking corrections that lead to a higher value of the up-down quark mixing element, Vud, and improved confirmation of the unitarity of the Cabibbo-Kobayashi-Maskawa matrix.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.