Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theoretical motivations for precision measurements of oscillation
  parameters   We discuss two theoretical motivations of precision measurements of
oscillation parameters. One is the guidance for flavour model building with
flavour symmetries, and the other is the connection with the origin of
matter-antimatter asymmetry. We also present our recent progress in these
aspects, a new approach of flavour model building based on cross coupling in
the flavon potential and a novel mechanism of leptogenesis via phase
transition.

25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an