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Physics The J/ particle is a meson made up of cc quark-antiquark pair. This particle is discovered in proton-proton and electron-positron collisions. i) A proton
Physics
The J/ particle is a meson made up of cc quark-antiquark pair. This particle is discovered in proton-proton and electron-positron collisions.
i) A proton collides with a proton at rest. Calculate the threshold energy for the incoming proton for this reaction to occur. p + p p + p + J/
ii) An electron collides with a positron, each of which has the same energy and opposite momenta. Calculate the threshold energy for either of the particles. e + + e- J/
mJ/ = 3 GeV, J/ = 10-20s
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