kappa-Deformed Kinematics and Addition Law for Deformed Velocities
arXiv:hep-th/0207022
Abstract
In kappa-deformed relativistic framework we consider three different definitions of kappa-deformed velocities and introduce corresponding addition laws. We show that one of the velocities has classical relativistic addition law. The relation of velocity formulae with the coproduct for fourmomenta and noncommutative space-time structure is exhibited.
11 pages, LaTeX. To appear in special issue of Acta Physica Polonica B, dedicated to 60-th birthday of Stefan Pokorski