• DOI:10.1088/1126-6708/2007/09/086
• Corpus ID: 14085926

AdS/CFT for Four-Point Amplitudes involving Gravitino Exchange

@article{Uruchurtu2007AdSCFTFF,
  title={AdS/CFT for Four-Point Amplitudes involving Gravitino Exchange},
  author={Linda I. Uruchurtu},
  journal={Journal of High Energy Physics},
  year={2007},
  volume={2007},
  pages={086-086}
}

• L. I. Uruchurtu
• Published 3 July 2007
• Physics
• Journal of High Energy Physics

In this paper we compute the tree-level four-point scattering amplitude of two dilatini and two axion-dilaton fields in type IIB supergravity in AdS5 × S5. A special feature of this process is that there is an ``exotic'' channel in which there are no single-particle poles. Another novelty is that this process involves the exchange of a bulk gravitino. The amplitude is interpreted in terms of = 4 supersymmetric Yang-Mills theory at large 't Hooft coupling. Properties of the Operator Product Expansion are used to analyze the various contributions from single- and double-trace operators in the weak and strongly coupled regimes, and to determine the anomalous dimensions of semi-short operators. The analysis is particularly clear in the exotic channel, given the absence of BPS states.