Abstract :
I calculate the potential of a pointlike particle carrying SU(Nc) charge in a gauge theory with a dilaton. The solution depends on boundary conditions imposed on the dilaton: For a dilaton that vanishes at infinity the resulting potential is of the form (r + rΦ)−1, with rΦ inverse proportional to the decay constant of the dilaton. Another natural constraint for the dilaton Φ is independence of ((1g2) exp(ΦfΦ) from the gauge coupling g. This requirement yields a potential proportional to r and makes it impossible to create an isolated SU(Nc) charge.
