Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino mass, dark matter and inflation   We show that spontaneous breaking of global $B-L$ symmetry responsible for
small neutrino masses via the seesaw mechanism provides a unified picture of
hybrid inflation and dark matter if the scale of $B-L$ breaking is close to the
GUT scale. The majoron which acquires a small mass in the milli-eV range due to
Planck scale breaking of $B-L$ is the dark matter candidate. The coupling of
the majoron field to the neutrino induces a small violation of CPT and Lorentz
invariance at the present epoch. We discuss some of the phenomenological and
cosmological implications of the model.

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The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an