Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low $\alpha_{strong}(M_Z)$, Intermediate Scale SUSY SO(10) GUT and Its
  Implications   We show that one of the ways of obtaining consistency between the idea of
supersymmetric grand unification and an apparent low value of
$\alpha_{strong}(M_Z)\simeq .11$ indicated by several low energy experiments is
to have an intermediate scale corresponding to a local $B-L$ symmetry breaking
around the mass scale of $10^{10}$ to $10^{12}$ GeV. We discuss the realization
of this idea within the framework of supersymmetric $SO(10)$ grand unified
theories with spectra of particles derivable from simple superstring-inspired
versions of this model. We then study the $b-\tau$ mass unification within this
class of models and show that due to the influence of new gauge and Yukawa
interactions beyond the intermediate scale, the prediction of the $b$-quark
mass comes out well within the presently accepted values. We also discuss an
un-orthodox class of SUSY models inspired by some theoretical considerations
having two pairs of Higgs doublets at low energy and show that they also can
lead to unification with intermediate scales and low $\alpha_{s}(M_Z)$ as
desired.

16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph