Measurement of the $β^+$ and orbital electron-capture decay rates in fully-ionized, hydrogen-like, and helium-like $^{140}$Pr ions

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dc.creatorLitvinov, Yu. A.
dc.creatorBosch, F.
dc.creatorGeissel, H.
dc.creatorKurcewicz, J.
dc.creatorPatyk, Z.
dc.creatorWinckler, N.
dc.creatorBatist, L.
dc.creatorBeckert, K.
dc.creatorBoutin, D.
dc.creatorBrandau, C.
dc.creatorChen, L.
dc.creatorDimopoulou, C.
dc.creatorFabian, B.
dc.creatorFaestermann, T.
dc.creatorFragner, A.
dc.creatorGrigorenko, L.
dc.creatorHaettner, E.
dc.creatorHess, S.
dc.creatorKienle, P.
dc.creatorKnöbel, R.
dc.creatorKozhuharov, C.
dc.creatorLitvinov, S. A.
dc.creatorMaier, L.
dc.creatorMazzocco, M.
dc.creatorMontes, F.
dc.creatorMünzenberg, G.
dc.creatorMusumarra, A.
dc.creatorNociforo, C.
dc.creatorNolden, F.
dc.creatorPfützner, M.
dc.creatorPlass, W. R.
dc.creatorProchazka, A.
dc.creatorReda, R.
dc.creatorReuschl, R.
dc.creatorScheidenberger, C.
dc.creatorSteck, M.
dc.creatorStöhlker, T.
dc.creatorTorilov, S.
dc.creatorTrassinelli, M.
dc.creatorSun, B.
dc.creatorWeick, H.
dc.creatorWinkler, M.
dc.date2007-11-23
dc.date.accessioned2026-07-07T11:38:53Z
dc.date.available2026-07-07T11:38:53Z
dc.descriptionWe report on the first measurement of the $β^+$- and orbital electron capture decay rates of $^{140}$Pr nuclei with the most simple electron configurations: bare nuclei, hydrogen-like and helium-like ions. The measured electron capture decay constant of hydrogen-like $^{140}$Pr$^{58+}$ ions is about 50% larger than that of helium-like $^{140}$Pr$^{57+}$ ions. Moreover, $^{140}$Pr ions with one bound electron decay faster than neutral $^{140}$Pr$^{0+}$ atoms with 59 electrons. To explain this peculiar observation one has to take into account the conservation of the total angular momentum, since only particular spin orientations of the nucleus and of the captured electron can contribute to the allowed decay.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0711.3709
dc.identifierhttp://arxiv.org/abs/0711.3709
dc.identifierPhys.Rev.Lett.99:262501,2007
dc.identifierdoi:10.1103/PhysRevLett.99.262501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199725
dc.subjectNuclear Experiment
dc.titleMeasurement of the $β^+$ and orbital electron-capture decay rates in fully-ionized, hydrogen-like, and helium-like $^{140}$Pr ions
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