https://doi.org/10.1140/epjc/s10052-022-10663-9
Regular Article - Theoretical Physics
The final model building for the supersymmetric Pati–Salam models from intersecting D6-branes
1
Korea Institute for Advanced Study, 85 Hoegiro, Dongdaemun-gu, 02455, Seoul, Korea
2
Academy of Mathematics and Systems Science, 100190, Beijing, People’s Republic of China
3
CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 100190, Beijing, People’s Republic of China
4
School of Physical Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, 100049, Beijing, People’s Republic of China
5
School of Sciences, Xi’an Technological University, 710021, Xi’an, People’s Republic of China
Received:
22
April
2022
Accepted:
2
August
2022
Published online:
16
August
2022
All the possible three-family 
supersymmetric Pati–Salam models constructed with intersecting D6-branes from Type IIA orientifolds on 
are recently presented in arXiv:2112.09632. Taking models with largest wrapping number 5 and approximate gauge coupling unification at GUT scale as examples, we show string scale gauge coupling unification can be realized through two-loop renormalization group equation running by introducing seven pairs of vector-like particles from 
sector. The number of these introduced vector-like particles are fully determined by the brane intersection numbers while there are two D6-brane parallel to each other along one two-torus. We expect this will solve the gauge coupling unification problem in the generic intersecting brane worlds by introducing vector-like particles that naturally included in the sector.
© The Author(s) 2022
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