D-brane instanton induced μ terms and their hierarchical structure

@article{Abe2015DbraneII,
  title={D-brane instanton induced $\mu$ terms and their hierarchical structure},
  author={Hiroyuki Abe and Tatsuo C. Kobayashi and Yoshiyuki Tatsuta and Shohei Uemura},
  journal={Physical Review D},
  year={2015},
  volume={92},
  pages={026001}
}
We study the $\ensuremath{\mu}$-term matrix of Higgs pairs induced by the D-brane instanton effects in intersecting D6-brane models compactified on ${T}^{6}$. It is found that the $\ensuremath{\mu}$-term matrix has a certain permutation symmetry and its eigenvalues have large hierarchical structure without fine-tuning. 
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References

SHOWING 1-10 OF 28 REFERENCES
Flavor structure in D-brane models: Majorana neutrino masses
A bstractWe study the flavor structure in intersecting D-brane models. We study anomalies of the discrete flavor symmetries. We analyze the Majorana neutrino masses, which can be generated by D-brane…
D-brane Instantons in Type II String Theory
We review recent progress in determining the effects of D-brane instantons in N=1 supersymmetric compactifications of Type II string theory to four dimensions. We describe the abstract D-brane…
Discrete flavor symmetries in D-brane models
A bstractWe study the presence of discrete flavor symmetries in D-brane models of particle physics. By analyzing the compact extra dimensions of these models one can determine when such symmetries…
Higher order couplings from heterotic orbifold theory
Non-Abelian discrete gauge symmetries in 4d string models
A bstractWe study the realization of non-Abelian discrete gauge symmetries in 4d field theory and string theory compactifications. The underlying structure generalizes the Abelian case, and follows…
Neutrino masses and mixings from string theory instantons
We study possible patterns of neutrino masses and mixings in string models in which Majorana neutrino masses are generated by a certain class of string theory instantons recently considered in the…
String Theory and Particle Physics: An Introduction to String Phenomenology
String theory is one of the most active branches of theoretical physics and has the potential to provide a unified description of all known particles and interactions. This book is a systematic…
Ann
Aaron Beck’s cognitive therapy model has been used repeatedly to treat depression and anxiety. The case presented here is a 34-year-old female law student with an adjustment disorder with mixed…
JHEP 0503
  • 050
  • 2005
JHEP 0703
  • 052
  • 2007
...
...