Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: From Dirac neutrino masses to baryonic and dark matter asymmetries   We consider an SU(3)'_c\times SU(2)'_L\times U(1)'_Y dark sector, parallel to
the SU(3)_c\times SU(2)_L\times U(1)_Y ordinary sector. The hypercharges,
baryon numbers and lepton numbers in the dark sector are opposite to those in
the ordinary sector. We further introduce three types of messenger sectors: (i)
two or more gauge-singlet Dirac fermions, (ii) two or more [SU(2)_L\times
SU(2)'_L]-bidoublet Higgs scalars, (iii) at least one gauge-singlet Dirac
fermion and at least one [SU(2)_L\times SU(2)'_L]-bidoublet Higgs scalar. The
lepton number conserving decays of the heavy fermion singlet(s) and/or Higgs
bidoublet(s) can simultaneously generate a lepton asymmetry in the
[SU(2)_L]-doublet leptons and an opposite lepton asymmetry in the
[SU(2)'_L]-doublet leptons to account for the cosmological baryon asymmetry and
dark matter relic density, respectively. The lightest dark nucleon as the dark
matter particle should have a mass about 5 GeV. By integrating out the heavy
fermion singlet(s) and/or Higgs bidoublet(s), we can obtain three light Dirac
neutrinos composed of the ordinary and dark neutrinos. If a mirror discrete
symmetry is further imposed, our models will not require more unknown
parameters than the traditional type-I, type-II or type-I+II seesaw models.

13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys