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The GT resonance revealed in β+-decay using new experimental techniques by A. Algora; D. Cano-Ott; B. Rubio; J.L. Tain; J. Agramunt; J. Blomqvist; L. Batist; R. Borcea; R. Collatz; A. Gadea; J. Gerl; M. Gierlik; M. Górska; O. Guilbaud; H. Grawe; M. Hellström; Z. Hu; Z. Janas; M. Karny; R. Kirchner; P. Kleinheinz; W. Liu; T. Martinez; F. Moroz; A. Plochocki; M. Rejmund; E. Roeckl; K. Rykaczewski; M. Shibata; J. Szerypo; V. Wittmann is a Physics and Astronomy article available to read on EtoBox.
What is The GT resonance revealed in β+-decay using new experimental techniques about?
The GT beta decay of 15°Ho has been studied with a Total Absorption Spectrometer (TAS), with an array of 6 Euroball CLUSTER Ge detectors (the CLUSTER CUBE), and with an alpha detector. The three techniques complement each other. The results provide the first observation of an extremely sharp resonance in GT beta decay. Although the problem of the missing strength in Gamow-Teller decay is one of longstanding it remains unresolved. In light nuclei there is a great deal of experimental information, from both beta decay and charge-exchange reactions, which systematically indicates that -~40% of the strength is missing [1]. For heavier nuclei the beta decay information is sparse because of the difficulty of accessing nuclei with allowed decays. In this work we will report studies of Gamow-Teller beta-decay in heavier nuclei. In comparison with charge-exchange reactions they are reaction-model independent and free of background uncertainties. In addition they permit the study of nuclei which are not stable. However, due to the selection rules, very few Gamow-Teller beta-decays are allowed above the heaviest N~Z particle stable nuclei. This is because the required orbitals for allowed dec
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- Author
- A. Algora; D. Cano-Ott; B. Rubio; J.L. Tain; J. Agramunt; J. Blomqvist; L. Batist; R. Borcea; R. Collatz; A. Gadea; J. Gerl; M. Gierlik; M. Górska; O. Guilbaud; H. Grawe; M. Hellström; Z. Hu; Z. Janas; M. Karny; R. Kirchner; P. Kleinheinz; W. Liu; T. Martinez; F. Moroz; A. Plochocki; M. Rejmund; E. Roeckl; K. Rykaczewski; M. Shibata; J. Szerypo; V. Wittmann
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0375-9474)
- Published
- 1999
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)