Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phenomenology of neutrino physics in the Kaluza-Klein theories of low
  scale gravity   We discuss the phenomenological consequences of theories which describe
sterile neutrinos in large extra dimensions. We show that the Kaluza-Klein
tower of the singlet neutrinos, albeit tiny individual contribution in
electroweak processes, act cumulatively, giving rise to non-universality of the
weak interactions of the light neutrinos and to flavour-violating radiative
processes. Owing to these non-decoupling effects of th Kaluza--Klein neutrinos,
we derive strong constraints on the parameters of the theory that originates
from the non-observation of flavour-violating and universality-breaking
phenomena. In this theory we propose a four-neutrino model which can reconcile
the existing data coming from underground experiments in terms of neutrino
oscillations, together with the hint from the LSND experiment and a possible
neutrino contribution to the hot dark matter of the Universe.

13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
2
The categories of this paper are: math