# Energy from proton and antiproton

by newbie7.07
Tags: antiproton, energy, proton
 P: 7 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?
 Emeritus PF Gold P: 734 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.
 Admin P: 21,417 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.

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