Energy from proton and antiproton

[newbie7.07]

Is there a set wavelength for photons produced from antimatter reacting its matter equivalent, and if there is, what wavelength does a proton and antiproton reacting create?

 

[ahrkron]

There is no fixed wavelength for this, since it depends on the total energy of the original particles, which can be much larger than their mass-energy equivalent.

 

[Astronuc]

I seem to remember most p\bar{p} reactions yielded cascades of mesons, with high sufficiently high energy protons producing baryonic resonances (hyperons) which decayed to protons and mesons, or pi-meson cascades. The mesons (charged pions) would decay to muons, which would decay to electrons, and I am leaving out the various neutrinos and anti-neutrinos.

Also, pions can interact with protons and neutrons producing Kaons and other baryonic resonances.

Generally, gamma rays are associated with \pi^o decay and positron annihilation.