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Paper   IPM / P / 7321
School of Physics
  Title:   N=1/2 Super Yang-Mills Theory on Euclidean AdS2xS2
1.  A. Imaanpur
2.  S. Parvizi
  Status:   Published
  Journal: JHEP
  Vol.:  07
  Year:  2004
  Pages:   010
  Supported by:  IPM
We study D-branes in the background of Euclidean AdS2xS2 with a graviphoton field turned on. As the background is not Ricci flat, the graviphoton field must have both self-dual and antiself-dual parts. This, in general, will break all the supersymmetries on the brane. However, we show that there exists a limit for which one can restore half of the supersymmetries. Further, we show that in this limit, the N=1/2 SYM Lagrangian on flat space can be lifted on to the Euclidean AdS2xS2 preserving the same amount of supersymmetries as in the flat case. We observe that without the C-dependent terms present in the action this lift is not possible.

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