Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non SUSY and SUSY one--step Unification   We explore the possibility of achieving one--step unification of the standard
model coupling constants within non supersymmetric and supersymmetric gauge
models, which at low energies have only the standard particle content. The
constraints are the experimental values of $\alpha_{em}$, $\alpha_s$ and
$\sin^2\theta_W$ at $10^2 GeV$, and the lower bounds for FCNC and proton decay
rates. The analysis is done in a model independent way.

37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas