Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Is the electron stationary in the ground state of the Dirac hydrogen
  atom in Bohm's Theory?   We show that, in the relativistic Bohm model of a Dirac-like particle, the
electron in the ground state of the hydrogen atom is moving, unlike the
prediction for the case of a Schr\"{o}dinger-like particle, where the electron
is stationary. This accounts for the empirically observed dilation of the decay
time of the muon in the ground state of muonium.

30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol