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arXiv · 0803.0798

D-instanton derivation of multi-fermion F-terms in supersymmetric QCD

Yoshinori Matsuo·Jaemo Park·Cheol Ryou·Masayoshi Yamamoto
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Abstract

We investigate effects of field theory instantons by considering D-instantons in a suitable D3-brane background. In supersymmetric QCD with SU(N_c) gauge group with N_f=N_c flavors, the moduli space of vacua is deformed by instantons. This effect can be described by the chiral interactions which are called multi-fermion F-terms. We derive these chiral interaction terms as D-instanton effects in the presence of D3-branes. For SU(2), the obtained result agrees with the previous result worked out by Beasley and Witten [hep-th/0409149]. We also explicitly work out those for the case of the symplectic gauge group, and show that they describe the deformation of the moduli space.

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Yoshinori Matsuo, Jaemo Park, Cheol Ryou, Masayoshi Yamamoto. 2008-03-06. D-instanton derivation of multi-fermion F-terms in supersymmetric QCD. https://doi.org/10.1088/1126-6708%2F2008%2F06%2F051

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