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Holographic correlation functions of hexagon Wilson loops with one local operator

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Hernández Redondo, Rafael and Nieto, Juan Miguel (2013) Holographic correlation functions of hexagon Wilson loops with one local operator. Physics letters B, 726 (1-3). pp. 417-421. ISSN 0370-2693

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Official URL: http://dx.doi.org/10.1016/j.physletb.2013.08.029


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Abstract

We consider the ratio of the correlation function of a hexagon light-like Wilson loop with one local operator over the expectation value of the Wilson loop within the strong-coupling regime of the AdS/CFT correspondence. We choose the hexagon Wilson loop within a class of minimal solutions obtained by cutting and gluing light-like quadrangle loops. These surfaces do not have an interpretation in terms of dual scattering amplitudes but they still exhibit general features of the mixed correlation function. In the case of a regular null hexagon conformal symmetry constrains the space–time dependence of the correlator up to a function of three conformal cross-ratios. We obtain the leading-order contribution to the correlation function in the semiclassical approximation of large string tension, and express the result in terms of three conformal ratios in the case where the local operator is taken to be the dilaton. We include the analysis of an irregular Wilson loop obtained after a boost of the regular hexagon.


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© 2013 Elsevier B.V. R.H. wishes to thank the Theory Division at CERN for hospitality and support at the early stages of this work. The work of R.H. is supported by MICINN through a Ramón y Cajal contract and grant FPA2011-24568, and by BSCH-UCM through grant GR58/08-910770.

Subjects:Sciences > Physics > Physics-Mathematical models
ID Code:44506
Deposited On:22 Nov 2017 12:34
Last Modified:11 Dec 2017 11:51

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