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On the scattering of gluons in the GKP string
release_ueeju2gixbdz3pwnxbo2v3jkea
by
Lorenzo Bianchi, Marco S. Bianchi
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2015
Abstract
We compute the one-loop S-matrix for the light bosonic excitations of the GKP
string at strong coupling. These correspond, on the gauge theory side, to gluon
insertions in the GKP vacuum. We perform the calculation by Feynman diagrams in
the worldsheet theory and we compare the result to the integrability
prediction, finding perfect agreement for the scheme independent part. For
scheme dependent rational terms we test different schemes and find that a
recent proposal reproduces exactly the integrability prediction.
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1511.01091v1
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