Power Law in Micro-Canonical Ensemble with Scaling Volume Fluctuations

Understand

Volume fluctuations are introduced in a statistical modelling of relativistic particle collisions.

• The micro-canonical ensemble is used, and the volume fluctuations are assumed to have the specific scaling properties.
• This leads to the KNO scaling of the particle multiplicity distributions as measured in p+p interactions.
• A striking prediction of the model is a power law form of the single particle momentum spectrum at high momenta.