We consider the properties of the space-time geometry in the presence of gravitating spinless particles in (2+1) dimensions. By using 't Hooft representation of three-dimensional space-time, we give a description of the decays of gravitating particles and derive the associated kinematic relations, The effects of gravity on the structure of the energy-momentum conservation law are discussed. We show that, for a set of spinless particles, the time evolution of the momenta can be described by means of a generalized space-time kinematics based on a particular representation of the braid group.
Particle decays and space-time kinematics in (2+1) gravity
GUADAGNINI, ENORE
1995-01-01
Abstract
We consider the properties of the space-time geometry in the presence of gravitating spinless particles in (2+1) dimensions. By using 't Hooft representation of three-dimensional space-time, we give a description of the decays of gravitating particles and derive the associated kinematic relations, The effects of gravity on the structure of the energy-momentum conservation law are discussed. We show that, for a set of spinless particles, the time evolution of the momenta can be described by means of a generalized space-time kinematics based on a particular representation of the braid group.File in questo prodotto:
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