New Kinetic Equation for Pair-annihilating Particles: Generalization of the Boltzmann Equation

Details New Kinetic Equation for Pair-annihilating Particles: Generalization of the Boltzmann Equation New Kinetic Equation for Pair-annihilating Particles: Generalization of the Boltzmann Equation

1999-10-21

arxiv.org/abs/hep-ph/9910425v1

Phys.Rev. D61 (2000) 123509

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, LATEX file with 2 PS figures

Scientific paper

10.1103/PhysRevD.61.123509

A convenient form of kinetic equation is derived for pair annihilation of heavy stable particles relevant to the dark matter problem in cosmology. The kinetic equation thus derived extends the on-shell Boltzmann equation in a most straightforward way, including the off-shell effect. A detailed balance equation for the equilibrium abundance is further analyzed. Perturbative analysis of this equation supports a previous result for the equilibrium abundance using the thermal field theory, and gives the temperature power dependence of equilibrium value at low temperatures. Estimate of the relic abundance is possible using this new equilibrium abundance in the sudden freeze-out approximation.

Affiliated with

Also associated with

No associations

Rating

New Kinetic Equation for Pair-annihilating Particles: Generalization of the Boltzmann Equation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with New Kinetic Equation for Pair-annihilating Particles: Generalization of the Boltzmann Equation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Kinetic Equation for Pair-annihilating Particles: Generalization of the Boltzmann Equation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-250245