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Planet--planet scattering is a major dynamical mechanism able tosignificantly alter the architecture of a planetary system. In addition tothat, it may also affect the formation and retention of a debris disk by thesystem. A violent chaotic evolution of the planets can easily clear leftoverplanetesimal belts preventing the ignition of a substantial collisional cascadethat can give origin to a debris disk. On the other end, a mild evolution withlimited steps in eccentricity and semimajor axis can trigger the formation of adebris disk by stirring an initially quiet planetesimal belt. The variety ofpossible effects that planet--planet scattering can have on the formation ofdebris disks is analysed and the statistical probability of the differentoutcomes is evaluated. This leads to the prediction that systems whichunderwent an episode of chaotic evolution might have a lower probability ofharboring a debris disk.

Impact of planet--planet scattering on the formation and survival of debris disks