Abstract
We investigate the spectrum of glueballs in 3D and 4D SU(N) gauge theories.
Our motivation is to determine whether the states lie on straight Regge
trajectories. To this end we develop new lattice techniques to reliably
determine the states carrying higher spin. It has been conjectured for a long
time that glueballs are the physical states lying on the pomeron, the
trajectory responsible for the slowly rising hadronic cross-sections at large
centre-of-mass energy.
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