1/N corrections to F1 and F2 structure functions of vector mesons from holography

Kovensky, Nicolas (Instituto de Física La Plata-UNLP-CONICET. Boulevard 113 e 63 y 64, (1900) La Plata, Buenos Aires, Argentina and Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata. Calle 49 y 115, C.C. 67, (1900) La Plata, Buenos Aires, Argentina) (Institut de Physique Thèorique, CEA/Saclay 91191 Gif-sur-Yvette Cedex, France) ; Michalski, Gustavo (Instituto de Física La Plata-UNLP-CONICET. Boulevard 113 e 63 y 64, (1900) La Plata, Buenos Aires, Argentina and Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata. Calle 49 y 115, C.C. 67, (1900) La Plata, Buenos Aires, Argentina) ; Schvellinger, Martin (Instituto de Física La Plata-UNLP-CONICET. Boulevard 113 e 63 y 64, (1900) La Plata, Buenos Aires, Argentina and Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata. Calle 49 y 115, C.C. 67, (1900) La Plata, Buenos Aires, Argentina)

11 February 2019

Abstract: The structure functions F1 and F2 of the hadronic tensor of vector mesons are obtained at order 1/N and strong coupling using the gauge/gravity duality. We find that the large N limit and the high energy one do not commute. Thus, by considering the high energy limit first, our results of the first moments of F1 for the rho meson agree well with those from lattice QCD, with an important improvement of the accuracy with respect to the holographic dual calculation in the planar limit.


Published in: Physical Review D 99 (2019)
Published by: APS
DOI: 10.1103/PhysRevD.99.046005
arXiv: 1809.10515
License: CC-BY-4.0



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