Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Leptogenesis and $CP$ violation in $SU(5)$ models with lepton flavor
  mixing originating from the right-handed sector   We discuss neutrino masses and mixing in the context of seesaw type I models
with three right-handed Majorana neutrinos and an approximately diagonal Dirac
sector. This ansatz is motivated by the idea that the flavor structure in the
right-handed Majorana masses is responsible for the large mixing angles,
whereas the small mixing angle $\theta_{13}$ originates from the Dirac Yukawa
couplings in analogy to the quark sector. To obtain $\theta_{13} \approx 0.15$
we study a possible $SU(5)$ grand unified theory realization with a $U(1)
\times \mathbb{Z}'_2 \times \mathbb{Z}''_2 \times \mathbb{Z}'''_2$ flavor
symmetry and include a complex perturbation parameter in the Dirac mass matrix.
The consequences for $CP$ violating phases and effects on leptogenesis are
investigated.

30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
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The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin