Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrinos: Windows to New Physics   After briefly reviewing how the symmetries of the Standard Model (SM) are
affected by neutrino masses and mixings, I discuss how these parameters may
arise from GUTs and how patterns in the neutrino sector may reflect some
underlying family symmetry. Leptogenesis provides a nice example of how
different physical phenomena may be connected to the same neutrino window of
physics beyond the SM. I end with some comments on the LSND signal and briefly
discuss the idea that neutrinos have environment dependent masses.

32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys