Prompt and delayed spectroscopy of At199

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ID: 271137
2010
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Abstract
The neutron-deficient nucleus $^{199}\mathrm{At}$ has been studied through $\ensuremath{\gamma}$-ray and electron spectroscopy, using the recoil-decay tagging technique. Two experiments were conducted, using a gas-filled recoil separator with a focal-plane spectrometer alone and together with a germanium-detector array at the target position. The resulting level scheme for $^{199}\mathrm{At}$ includes a new isomer with a half-life of 0.80(5) $\ensuremath{\mu}$s and a spin and parity of ($29/{2}^{+}$). The $13/{2}^{+}$ isomer, which de-excites via an $M2$ transition to the $9/{2}^{\ensuremath{-}}$ ground state, was measured to have a half-life of 70(20) ns. Our earlier version of the level scheme for $^{197}\mathrm{At}$ has been updated as well.
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jakobsson2010physicalprompt Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors U. Jakobsson;J. Uusitalo;S. Juutinen;M. Leino;P. Nieminen;K. Andgren;B. Cederwall;P. T. Greenlees;B. Hadinia;P. Jones;R. Julin;S. Ketelhut;A. Khaplanov;M. Nyman;P. Peura;P. Rahkila;P. Ruotsalainen;M. Sandzelius;J. Sarén;C. Scholey;J. Sorri;
Journal physical review c
Year 2010
DOI
doi:10.1103/PhysRevC.82.044302
URL
https://doi.org/10.1103/physrevc.82.044302
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