Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Elastic neutrino - electron scattering and potential effects of magnetic
  and electric dipole moments   We consider elastic neutrino - electron scattering of solar neutrinos with
magnetic moments and electric dipole moments, where the solar neutrino state at
the scattering site is determined by the evolution in matter and solar magnetic
fields of the initial electron neutrino state. We present the general cross
section for an arbitrary superposition of active and sterile neutrino types
with positive and negative helicities, with particular emphasis on the effect
of transverse polarization, which gives rise to an azimuthal asymmetry as a
function of the recoil electron momentum. Within our physically motivated
approximation, we perform a general CP analysis and show that in the 1-Dirac
and 2-Majorana neutrino cases no CP-violating effects are present, which means
that it is not possible to distinguish between magnetic and electric dipole
moments in these cases. We also study the consequences of neutrino energy
averaging on the cross section and stress that in the 2-Majorana neutrino case
this averaging leads to a suppression of the transverse neutrino polarization
effects.

32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess