Worldsheet scattering for the GKP string

Aug 28, 2015
33 pages
Published in:
  • JHEP 11 (2015) 178
  • Published: Nov 25, 2015
e-Print:
Report number:
  • HU-EP-15-40,
  • QMUL-PH-15-16

Citations per year

201520172019202120230123456
Abstract: (arXiv)
We initiate the perturbative study of the S-matrix for the excitations on top of the GKP vacuum at strong coupling. Using the string sigma model action expanded around the null cusp classical solution, we compute the tree-level S-matrix elements and compare them with the predictions from the asymptotic Bethe Ansatz. We also check the factorization of the three-body S-matrix for various bosonic processes, finding precise agreement with the constraints imposed by integrability.
Note:
  • 33 pages, 13 figures
  • AdS-CFT Correspondence
  • Integrable Field Theories
  • S-matrix
  • string
  • tree approximation
  • strong coupling
  • factorization
  • excited state
  • integrability
  • Bethe ansatz