Glueball spectra and Regge trajectories from a modified holographic softwall model

Understand

In this work we propose a modified holographic softwall model, analytically solvable, to calculate the masses of lightest scalar glueball and its radial excitations and of higher spin glueball states for both even and odd spins.

• From these results we obtain their respective Regge trajectories, associated with the pomeron for even spins and with the odderon for odd spins.
• These results are in agreement with those calculated using other approaches.