Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Large mixing angles in a SU(2)_L gauge theory of weak interactions as a
  resonant effect of 1-loop transitions between quasi-degenerate fermions   We show that 1-loop transitions between two quasi-degenerate fermions can
induce a potentially large renormalization of their mixing angle, and a large
renormalized Cabibbo (or PMNS) angle when the second fermion pair in the same
two generations is far from degeneracy. At the resonance, the "Cabibbo angle"
gets maximal and simply connected to masses without invoking any new physics
beyond the standard model. This solution appears as the only one
"perturbatively stable" (mixing angles are then renormalized with respect to
their classical values by small amounts).

10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con