Heterotic Flux Tubes in N=2 SQCD with N=1 Preserving Deformations

@article{Shifman2008HeteroticFT,
  title={Heterotic Flux Tubes in N=2 SQCD with N=1 Preserving Deformations},
  author={Mikhail A. Shifman and Alexei V Yung},
  journal={Physical Review D},
  year={2008},
  volume={77},
  pages={049901}
}
We consider non-Abelian BPS-saturated flux tubes (strings) in N=2 supersymmetric QCD deformed by superpotential terms of a special type breaking N=2 supersymmetry down to N=1. Previously it was believed that worldsheet supersymmetry is "accidentally" enhanced due to the facts that N =(1,1) SUSY is automatically elevated up to N=(2,2) on CP(N-1) and, at the same time, there are no N=(0,2) generalizations of the bosonic CP(N-1) model. Edalati and Tong noted that the target space is in fact CP(N-1… 

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