Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino Mass, Electron Capture and the Shake-off Contributions   Electron capture can determine the electron neutrino mass, while the beta
decay of Tritium measures the electron antineutrino mass and the neutrinoless
double beta decay observes the Majorana neutrino mass. Electron capture e. g.
on 163Ho plus bound electron to 163Dy* plus neutrino can determine the electron
neutrino mass from the upper end of the decay spectrum of the excited Dy*,
which is given by the Q-Value minus the neutrino mass. The Dy* states decay by
X-ray and Auger electron emissions. The total decay energy is measured in a
bolometer. These excitations have been studied by Robertson and by Faessler et
al.. In addition the daughter atom Dy can also be excited by moving in the
capture process one electron into the continuum. The escape of these continuum
electrons is automatically included in the experimental bolometer spectrum.
Recently a method developed by Intemann and Pollock was used by DeRujula and
Lusignoli for a rough estimate of this shake-off process for "s" wave electrons
in capture on 163Ho. The purpose of the present work is to give a more reliable
description of "s" wave shake-off in electron capture on Holmium. For that one
needs very accurate atomic wave functions of Ho in its ground state and excited
atomic wave functions of Dy* including a description of the continuum
electrons. In the present approach the wave functions of Ho and Dy* are
determined selfconsistently with the antisymmetrized relativistic
Dirac-Hartree-Fock approach. The relativistic continuum electron wave functions
for the ionized Dy* are obtained in the corresponding selfconsistent
Dirac-Hartree-Fock-Potential. In this improved approach shake-off can hardly be
seen after electron capture in 163Ho and thus can probably not affect the
determination of the electron neutrino mass.

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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: physics
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The categories of this paper are: cs
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The categories of this paper are: mtrl-th