Abstract
AbstractWe construct new three-family $${{\mathcal {N}}}=1$$
N
=
1
supersymmetric Pati–Salam models from intersecting D6-branes with original gauge group $$\textrm{U}(4)_C \times \textrm{USp}(2)_L \times \textrm{U}(2)_R$$
U
(
4
)
C
×
USp
(
2
)
L
×
U
(
2
)
R
on a Type IIA $${\mathbb {T}}^6/({\mathbb {Z}}_2\times {\mathbb {Z}}_2)$$
T
6
/
(
Z
2
×
Z
2
)
orientifold. We find that replacing a $$\textrm{U}(2)$$
U
(
2
)
with a $$\textrm{USp}(2)$$
USp
(
2
)
group severely restricts the number of three-generation supersymmetric models such that there are only five inequivalent models. Exchanging the left and right sectors, we obtain five dual models with gauge group $$\textrm{U}(4)_C \times \textrm{U}(2)_L \times \textrm{USp}(2)_R$$
U
(
4
)
C
×
U
(
2
)
L
×
USp
(
2
)
R
. These ten models have different gauge coupling relations at string scale. The highest wrapping number is 4, and one of the models contains no filler O6-planes. Moreover, we discuss in detail the particle spectra, the composite particles through strong coupling dynamics, and the exotic particle decouplings. Also, we study how to realize the string-scale gauge coupling relations in some models.
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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