Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation of quasiparticles by flavor mixing and CP violation: heavy
  Majorana neutrinos, part I   The phenomenology of flavor mixing of heavy Majorana neutrinos is studied.
The physical degrees of freedom, which propagate like free particles until they
decay in the presence of flavor mixing, are identified by diagonalizing the
resummed propagator. It is shown that they should be interpreted as
quasiparticles which lose Majorana nature.

37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat