Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing Models of Dirac Neutrino Masses via the Flavor Structure of the
  Mass Matrix   We classify models of the Dirac neutrino mass by concentrating on flavor
structures of the mass matrix. The advantage of our classification is that we
do not need to specify detail of models except for Yukawa interactions because
flavor structures can be given only by products of Yukawa matrices. All
possible Yukawa interactions between leptons (including the right-handed
neutrino) are taken into account by introducing appropriate scalar fields. We
also take into account the case with Yukawa interactions of leptons with the
dark matter candidate. Then, we see that flavor structures can be classified
into seven groups. The result is useful for the efficient test of models of the
neutrino mass. One of seven groups can be tested by measuring the absolute
neutrino mass. Other two can be tested by probing the violation of the lepton
universality in $\ell \to \ell^\prime \nu \overline{\nu}$. In order to test the
other four groups, we can rely on searches for new scalar particles at collider
experiments.

30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph