Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superluminal neutrino, flavor, and relativity   Modified neutrino dispersion relations, which still obey the relativity
principle, can have both a superluminal (muon-type) neutrino and a luminal
(electron-type) neutrino, as long as neutrino-mass effects can be neglected.
The idea is to allow for flavor-dependent deformed Lorentz transformations and
an appropriate hierarchy of energy scales. If OPERA's result on a superluminal
velocity of the muon-neutrino is confirmed, the model has a matching
superluminal velocity of the corresponding charged lepton, the muon, at equal
particle energy. Assuming that this model is not already ruled out, new
TeV-scale effects in the muon sector are predicted. Also discussed is a
different model with a superluminal sterile neutrino propagating in the usual 4
spacetime dimensions.

17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg