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I was wondering about this and I would like to know an explanation why do particles and antiparticles annihilate? I would be interested in phenomenological, but most importantly mathematic explanation of annihilation. Do we even have a complete mathematic description of the phenomenon?

I am asking if there is an equation, like in Newtonian mechanics that governs elastic and non-elastic collisions of massive bodies(not particles, just two massive balls) or equations that govern deformation. There is no answer giving a sufficient information about MATHEMATICAL description.

user74200
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  • please look at http://physics.stackexchange.com/q/190463/ where I have recently answered the same question – anna v Jun 29 '15 at 11:01
  • @annav Sorry, but I am not asking about the description of annihilation process by feynmann diagrams, I am asking mainly about mathematical description. I mean if there is an equation that governs annihilation. – user74200 Jul 01 '15 at 11:21
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    @user74200: Feynmann diagrams are mathematical expressions, just in pictorial form. – Kyle Kanos Jul 01 '15 at 12:58
  • As Kylle says, there exists a one to one correspondance of Feynman diagrams with rules and formulae, integrals that give crossections for the interactions described pictorially. http://www.its.caltech.edu/~matilde/FeyAlgGeomShort.pdf and https://people.sc.fsu.edu/~dduke/devoto-duke-84.pdf – anna v Jul 01 '15 at 13:05

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