Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino Masses, Leptogenesis, and Unification in the Absence of Low
  Energy Supersymmetry   We explore generating the dimension five operator leading to neutrino masses
by integrating out heavy SU(2)_L triplet fermions. We exhibit a model that has
a neutrino mass matrix consistent with observations. In addition, the model is
capable of producing the observed baryon asymmetry, and unification can be
achieved without dangerous proton decay. Supersymmetry can be broken at the
fundamental scale with no supersymmetric signal at low energies.

1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci