What determines the type of particle-antiparticle pairs?

Subject: What determines the type of particle-antiparticle pairs?

Date: Sat Feb 27 04:33:30 2010
Posted by Micah
Grade level: 10-12 School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Physics
ID: 1267270410.Ph

Message:


When a particle- antiparticle pair is created out of nothing what determines what type of particles they are, 
or are there only some types that can be created, or what determines the frequency of the photon-
anitphoton pairs?

Re: What determines the type of particle-antiparticle pairs?

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