Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental Review on Lepton Universality and Lepton Flavour Violation
  tests at the B-factories   Since 1999, the B-factories collaborations BABAR and Belle have accumulated
and studied large samples of tau lepton pairs. The experimental results on
Lepton Universality checks and Lepton Flavour Violation searches are reported.

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The categories of this paper are: adap-org
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The categories of this paper are: eess
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
3
The categories of this paper are: physics