Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental Constraints on the Cabibbo-Kobayashi-Maskawa Matrix   The LEP investigation of the Bd and Bs oscillations and of the
Cabibbo-Kobayashi-Maskawa matrix element Vub improve the constraints on the
other elements of this matrix.
  From a fit to the experimental data and the theory calculations it is
possible to determine the vertex of the unitarity triangle as:
  rho = 0.155 -0.105 +0.115 eta = 0.383 -0.060 +0.063.
  The corresponding values of its angles, in their customary definition in
terms of sines for alpha and beta, are:
  sin(2 alpha) = 0.08 -0.50 +0.43 sin(2 beta) = 0.75 +/- 0.10 gamma = 68 +/-
15o.
  The fit also yields indirect information on the compatibility with zero of
the CP violating phase of the matrix, on some non-perturbative QCD parameters
and on the Bs oscillation frequency.

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The categories of this paper are: quant-ph
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The categories of this paper are: stat
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
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The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: econ
28
The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat