Home | Contact | Sitemap | 中文 | CAS
Search: 
Home │  About Us │  Research │  People │  International Cooperation │  Education & Training │  Papers
  Research Progress
Research Divisions
Research Programs
Research Progress
Achievements
  Location: Home >  Research >  Research Progress
Supersymmetric standard model and string theory
2008-11-20     Text Size:  A

The realization of supersymmetric standard model in string theory is a very important subject. We have constructed a series of three-family Pati-Salam model. Among these models, we found one is very promising in describing the nature. We found that the gauge symmetry can be broken down to the Standard Model (SM) gauge symmetry close to the string scale, and the gauge coupling unification can be achieved. We also calculate the supersymmetry breaking soft terms, and the corresponding low energy supersymmetric particle spectrum, which may be tested at the Large Hadron Collider (LHC). The observed dark matter density may also be generated. In addition, we can explain the SM quark masses and CKM mixings, and the tau lepton mass. The neutrino masses and mixings may be generated via the seesaw mechanism as well. This is one of the most realistic models constructed so far by Intersecting D-branes in the current research.

Return to the list

  Appendix:
       Address: No. 55 Zhong Guan Cun East Road, Haidian District, Beijing 100190, P. R. China
Copyright ? Institute of Theoretical Physics, Chinese Academy of Sciences, All Rights Reserved