Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino Majorana Mass and Baryon Number of the Universe below the
  Electroweak Symmetry breaking Scale   If the neutrino is Majorana type and the electroweak phase transition is
second or weak first order, neutrino-induced interactions together with
sphaleron transitions have the potential to erase a previously generated baryon
asymmetry of the universe. Taking correctly into account the evolution of the
vacuum expectation of the Higgs field the effective light neutrino masses are
constrained to be lighter than order 10 MeV, while the effective heavy masses
are constrained to be heavier than order 10^7 GeV.

36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
16
The categories of this paper are: stat
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org