Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Quark Mass Problem and CP-Violation   A simple breaking of the subnuclear democracy among the quarks leads to a
mixing between the second and the third family, in agreement with observation.
Introducing the mixing between the first and the second family, one finds an
interesting pattern of maximal CP-violation as well as a complete determination
of the elements of the CKM matrix and of the unitarity triangles.

10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas