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29 March 2024 |
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Article overview
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Simultaneous measurement of beta- decay to bound and continuum electron states | T Ohtsubo
; F Bosch
; H Geissel
; L Maier
; C Scheidenberger
; F Attallah
; K Beckert
; P Beller
; D Boutin
; T Faestermann
; B Franczak
; B Franzke
; M Hausmann
; M Hellström
; E Kaza
; P Kienle
; O Klepper
; H-J Kluge
; C Kozhuharov
; Yu A Litvinov
; M Matos
; G Münzenberg
; F Nolden
; Yu N Novikov
; M Portillo
; T Radon
; J Stadlmann
; M Steck
; T Stöhlker
; K Sümmerer
; K Takahashi
; H Weick
; M Winkler
; T Yamaguchi
; | Date: |
29 Jul 2005 | Journal: | Phys Rev Lett, 95 (5), 052501 | Abstract: | We report the first measurement of a ratio lambda(beta(b))/lambda(beta(c)) of bound-state ((lambda(beta(b))) and continuum-state (lambda(beta(c))) beta(-)-decay rates for the case of bare 207Tl81+ ions. These ions were produced at the GSI fragment separator FRS by projectile fragmentation of a 208Pb beam. After in-flight separation with the Brho-deltaE-Brho method, they were injected into the experimental storage-ring ESR at an energy of 400.5A MeV, stored, and electron cooled. The number of both the 207Tl81+ ions and their bound-state beta(-)-decay daughters, hydrogen-like 207Pb81+ ions, were measured as a function of storage time by recording their Schottky-noise intensities. The experimental result, lambda(beta(b))/lambda(beta(c)) = 0.188(18), is in very good agreement with the value of 0.171(1) obtained from theory employing spectra of allowed transitions. | Source: | PubMed, pmid16090870 | Services: | Forum | Review | Favorites |
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