2016
DOI: 10.1007/jhep12(2016)003
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Deep inelastic scattering off scalar mesons in the 1/N expansion from the D3D7-brane system

Abstract: Deep inelastic scattering (DIS) of charged leptons off scalar mesons in the 1/N expansion is studied by using the gauge/gravity duality. We focus on the D3D7-brane system and investigate the corresponding structure functions by considering both the high energy limit and the 1/N expansion. These limits do not commute. From the D7-brane DBI action we derive a Lagrangian at sub-leading order in the D7-brane fluctuations and obtain a number of interactions some of which become relevant for two-hadron finalstate DI… Show more

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Cited by 17 publications
(52 citation statements)
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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: 80%
“…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: 80%
“…En el capítulo 7 nos concentramos en la utilización de los modelos de branas para describir los blancos mesónicos, para los que analizamos las acciones efectivas provenientes de teoría de cuerdas en diversos modelos, las secciones eficaces [7] y las correcciones en la expansión en potencias de 1/N . Estos desarrollos fueron presentados en [6], [7] y [9], respectivamente. En el capítulo 8, en cambio, estudiamos el caso de los blancos de spin-1/2, concentrándonos en la física de Regge.…”
Section: Estructura De La Tesisunclassified
“…y separamos a la D7-brana de las D3-branas una distancia L > 0 en el plano (8,9) podemos comprobar que la configuración que minimiza la acción está dada por la geometría…”
Section: Modelo D3d7unclassified
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