2016
DOI: 10.1007/jhep04(2016)113
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Towards 1/N corrections to deep inelastic scattering from the gauge/gravity duality

Abstract: 1/N 2 corrections to deep inelastic scattering (DIS) of charged leptons from glueballs at strong coupling are investigated in the framework of the gauge/gravity duality. The structure functions F 1 and F 2 (and also F L ) are studied at subleading order in the 1/N 2 expansion, in terms of q 2 and the Bjorken parameter x. The relevant type IIB supergravity one-loop diagrams (which correspond to DIS with two-hadron final states) are studied in detail, while n-loop diagrams (corresponding to DIS with (n + 1)-hadr… Show more

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Cited by 17 publications
(68 citation statements)
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References 70 publications
(224 reference statements)
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“…This also prevents us so far from making a comparison to 1/N corrections that have been computed using perturbative quantum supergravity, see e.g. [35,36,37,38,39].…”
Section: Commentsmentioning
confidence: 99%
“…This also prevents us so far from making a comparison to 1/N corrections that have been computed using perturbative quantum supergravity, see e.g. [35,36,37,38,39].…”
Section: Commentsmentioning
confidence: 99%
“…They have the same contribution in powers of N that the diagram with two cubic vertices (one of them contains the graviton) 8 . We do not write them explicitly because these diagrams produce sub-leading contributions in powers of Λ 2 /q 2 and will be more suppressed as in [24].…”
Section: Effective Interaction Lagrangian For Gravitons Propagating Omentioning
confidence: 99%
“…Recall that for glueballs there is a 1/N 2n expansion instead of the 1/N n one shown in the previous equation, which simply reflects the fact that glueballs in the calculations [24] are made of N = 4 SYM theory fields in the gauge supermultiplet (thus all of them belong to the adjoint representation of SU(N)). On the other hand, the mesons considered here correspond to fields of the hypermultiplet of N = 2 SYM theory, thus being in the fundamental representation.…”
Section: Introductionmentioning
confidence: 99%
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“…In this regime, these results have been extended for charged and neutral polarized spin-1/2 hadrons [6,8], and also for scalar and polarized vectors mesons for different Dp-brane models, both in the Abelian and non-Abelian cases [23,24]. However, by considering supergravity one-loop corrections in this x-regime very interesting results have been found [27,28]. Particularly, the first moments of the structure function F 2 for the pion [23,24] can be compared with the lattice QCD ones [55], having found discrepancies under 20%, while the supergravity one-loop level calculation improves quite significantly that prediction reaching an accuracy of 1.27 % or better.…”
Section: Analysis Of the Results And Conclusionmentioning
confidence: 81%