String corrections to four point functions in the AdS / CFT correspondence

Sep, 1998
15 pages
Published in:
  • Phys.Lett.B 445 (1999) 296-306
e-Print:
Report number:
  • PUPT-1813

Citations per year

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Abstract:
In a string calculation to order α3\alpha'^3, we compute an eight-derivative four-dilaton term in the type IIB effective action. Following the AdS prescription, we compute the order (gYM2Nc)3/2(g_{YM}^2N_c)^{-3/2} correction to the four-point correlation function involving the operator trF2tr F^2 in four dimensional N=4 super Yang-Mills using the string corrected type IIB action extending the work of Freedman et al. (hep-th/9808006). In the limit where two of the Yang-Mills operators approach each other, we find that our correction to the four-point correlation functions develops a logarithmic singularity. We discuss the possible cancellation of this logarithmic singularities by conjecturing new terms in the type IIB effective action.
Note:
  • 16 pages, uses harvmac, no figures. Minor corrections to some equations and typos fixed Report-no: PUPT-1813
  • field theory: conformal
  • space-time: anti-de Sitter
  • n-point function: 4
  • string model: correction
  • gauge field theory: Yang-Mills
  • effective action
  • supersymmetry
  • dimension: 10