Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Structure of Flavor Mixing and Reconstruction of the Mass Matrix   The Fermion flavor structure is investigated by bilinear decomposition of the
mass matrix after EW symmetry breaking, and the roles of factorized matrices in
flavor mixing and mass generation are explored. It is shown that flavor mixing
can be addressed as an independent issue. On a new Yukawa basis, the minimal
parameterization of flavor mixing is realized containing two relative phases
and two free $SO(2)_L$ rotation angles. The validity of the flavor mixing
structure is checked in both the lepton and quark sectors. Under the
decomposition of flavor mixing, fermion mass matrices are reconstructed under
the hierarchy limit. A flat mass matrix with all elements equal to 1 arises
naturally from the requirement that homology exists between up-type and
down-type fermion mass matrices. Some hints of a flat matrix and flavor
breaking are also discussed.

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The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
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The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
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The categories of this paper are: econ
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The categories of this paper are: eess
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The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs