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Where antimatter doesn't eat up matter?

Baby Astronaut
in Physics

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If an antielectron touched a proton, it wouldn't result in annihilation, huh? Same deal with antiprotons snuggling up to neutrinos.

 

 

(And in biology an antibody touching a body won't end up in annihilation. ;))

no annihilation. one of the delta baryons even breaks down into a proton and positron (and some neutrinos I guess)

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My thought: matter + antimatter will result in annihilation, and subatomic particles + their "anti" counterparts result in annihilation. But is this the case only for the same type of a particle and its opposite?

 

For example, proton and antiproton will annihilate. But proton and antineutron won't.

 

Is this correct?

Is this correct?

 

Yes, it has to be the particle's corresponding antiparticle for the annihilation to work.

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