An Investigation into the 113-Cd Beta Decay Spectrum using a CdZnTe Array

Abstract

We present 11 independent measurements of the half-life and spectral shape of the 4-fold forbidden beta decay of 113-Cd using CdZnTe semiconductors with a total combined lifetime of 6.58 kg days. Our overall result gives a half-life of (8.00 +/- 0.11(stat) +/- 0.24(sys)) x 10^15 years and a Q value of 322.2 +/- 0.3(stat) +/- 0.9(sys) keV. For the first time half-lives well beyond 10^10 years have been deduced with a statistically representative sample of independent measurements.

18 pages, 5 figures, accepted for publication in Nuclear Physics A

References in corpus (6)

• Tests of the standard electroweak model in beta decay
• COBRA - Double beta decay searches using CdTe detectors
• A Search for various Double Beta Decay Modes of Cd, Te and Zn Isotopes
• First results on double beta decay modes of Cd, Te and Zn isotopes with the COBRA experiment
• Experimental study of 113Cd beta decay using CdZnTe detectors
• An Investigation on Cooling of CZT Co-Planar Grid Detectors

Cited by in corpus (8)

• High precision analytical description of the allowed $\beta$ spectrum shape
• Quenching of $g_{\mathrm{A}}$ deduced from the $\beta$-spectrum shape of ${}^{113}$Cd measured with the COBRA experiment
• The COBRA demonstrator at the LNGS underground laboratory
• Experimental study of double beta decay modes using a CdZnTe detector array
• Confirmation of $g_{\mathrm{A}}$ quenching using the revised spectrum-shape method for the analysis of the ${}^{113}$Cd $\beta$-decay as measured with the COBRA demonstrator
• ${}^{113}$Cd $\beta$-decay spectrum and $g_{\mathrm{A}}$ quenching using spectral moments
• Precision half-life measurement of the 4-fold forbidden electron capture of V-50
• Long-Term Stability of Underground Operated CZT Detectors Based on the Analysis of Intrinsic ${}^{113}$Cd β${}^{-}$-Decay