Gauge/Gravity Duality and Odderon Spectroscopy in Quantum Chromodynamics

In this paper, we consider the holographic softwall model with Neumann boundary condition and obtain the masses of three gluons glueball with odd spin and P = C = -1, which called odderon. We find relation between angular momenta and mass squared for the odderon spectrum. We draw Regge trajectories for the odderon by using the spectrum masses and find approximate linear Regge trajectories.