Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bottom-Tau Unification in Supersymmetric SU(5) Models with Extra Matters   We consider $b$-$\tau$ unification in supersymmetric $SU(5)$ grand unified
theories (GUTs) with extra matters. The renormalization group runnings of $b$
and $\tau$ Yukawa coupling constants may be significantly affected by the
existence of extra matters. If the extra matters interact with the standard
model particles (and their superpartners) only through gauge interaction, the
ratio of the $b$ to $\tau$ Yukawa coupling constants at the GUT scale becomes
suppressed compared to the case without extra matters. This is mainly due to
the change of the renormalization group running of the $SU(3)_C$ gauge coupling
constant. If the extra matters have Yukawa couplings, on the contrary, the
(effective) $b$ Yukawa coupling at the GUT scale can be enhanced due to the new
Yukawa interaction. Such an effect may improve the $b$-$\tau$ unification in
supersymmetric GUTs.

23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an