Antiproton Production

Antiproton Production - Antiproton Production On raising...

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Antiproton Production On raising the energy of the incoming proton further, more particles are produced, including the “antiproton”—a negatively charged heavy particle which will annihilate a proton in a flash of energy. It turns out experimentally that an antiproton can only be produced accompanied by a newly created proton, Notice we could have conserved electric charge with less energy with the reaction but this doesn’t happen—so charge conservation isn’t the only constraint on which particles can be produced. In fact, what we are seeing here is experimental confirmation that the conservation of baryon number, which at the low energies previously discussed in the context of pion production just meant that the total number of protons plus neutrons stayed fixed, is generalized at high energies to include antiparticles with negative baryon number, -1 for the antiproton. Thus baryon number conservation becomes parallel to electric charge conservation, new particles can always be produced at high enough energies provided the total new charge and the total new
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This note was uploaded on 11/09/2011 for the course PHY PHY2053 taught by Professor Davidjudd during the Fall '10 term at Broward College.

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Antiproton Production - Antiproton Production On raising...

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