Speaker
Description
We model a soft-wall type nonconformal holography to study the gluon saturation phenomena occuring in a deep inelastic scattering process. The gravity background has been considered as a nonconformal warped version of 5D AdS geometry. The warpedness is characterized by a deformation parameter with finite length dimension. To represent a highly boosted target nucleus, we introduce a gravitational shockwave along one of the light-cone directions. The shockwave is considered to be localized along the other light cone direction. Our shockwave profile remains constant in UV regime and exponentially decays in the IR regime of the theory, thereby consistently representing a confined nucleus in IR. We propose the corresponding confinement scale as a nontrivial function of the deformation parameter. We implement specific gauge choice for the vector fields consistently with the bulk construction and solve the associated Maxwell’s field equations to deduce the current correlators of the dual nonconformal IR boundary theory. The resulting gluon structure functions are numerically found to increase and eventually saturate with the increasing deformation parameter. We comment on the emergence of a gluon saturation scale as a nontrivial function of the deformation of our bulk geometry.