Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Isospin splittings in baryons with two heavy quarks   Isospin splittings in baryons with two heavy quarks and a $u$ or $d$ quark
are calculated using simple methods proposed previously by the authors. The
results are
  $M(\Xi_{cc}^{++})-M(\Xi_{cc}^+) = 1.41 \pm 0.12^{+0.76}$ MeV,
  $M(\Xi_{bb}^0) - M(\Xi_{bb}^-) = - 4.78 \pm 0.06^{+0.03}$ MeV, and
  $M(\Xi_{bc}^+)-M(\Xi_{bc}^0)=-1.69 \pm0.07 ^{+0.39}$ MeV, where the
statistical errors reflect uncertainties in input mass splittings, and the
systematic errors are associated with the choice of constituent-quark masses.

28
The categories of this paper are: alg-geom
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The categories of this paper are: cs
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc