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arXiv 0803.0798hep-th
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超对称QCD中多费米子F项的D瞬子推导

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

Yoshinori Matsuo, Jaemo Park, Cheol Ryou, Masayoshi Yamamoto

摘要:

我们通过在适当的D3-膜背景下考虑D-瞬子来研究场论瞬子的效应。在SU(N_c)规范群具有N_f=N_c味的超对称QCD中,真空的模空间被瞬子变形.这种效应可以用称为多费米子F项的手征相互作用来描述。我们得到这些手征相互作用项作为D-瞬子效应的存在下的D3膜。对于SU(2),所得结果与Beasley和Witten [hep-th/0409149]的结果一致.我们还明确地计算出了辛规范群的情形,并表明它们描述了模空间的形变。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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