Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Massive neutrinos and invisible axion minimally connected   We survey a few minimal scalar extensions of the standard electroweak model
that provide a simple setup for massive neutrinos in connection with an
invisible axion. The presence of a chiral $U(1)$ \`a la Peccei-Quinn drives the
pattern of Majorana neutrino masses while providing a dynamical solution to the
strong CP problem and an axion as a dark matter candidate. We paradigmatically
apply such a renormalizable framework to type-II seesaw and to two viable
models for neutrino oscillations where the neutrino masses arise at one and two
loops, respectively. We comment on the naturalness of the effective setups as
well as on their implications for vacuum stability and electroweak
baryogenesis.

28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph