Find the kinetic energy that must be imparted to a positron for a proton-antiproton pair to be obtained as a result of its collision with a stationary electron.

Find the kinetic energy that must be imparted to a positron for a prot

1.	Find the kinetic energy that must be imparted to a positron for a proton-antiproton pair to be obtained as a result of its collision with a stationary electron.
Answer» Solution :For a proton-antiproton PAIR to be born out of a cluster, its regt energy should be at least twice that of the rest energy of a proton: `epsilon._0 ge2 xx 0.938 = 1.88`Gey. Noting that the rest energy of an electron is `epsilon_0`= 0.511 MeV (SEE Problem 8.1), we OBTAIN `evarphige(epsilon.0^2)/(2epsilon_0)-2epsilon_0~~(epsilon._0^2)/(2epsilon_0)=3.46TeV` At present there are no such accelerators.

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Find the kinetic energy that must be imparted to a positron for a proton-antiproton pair to be obtained as a result of its collision with a stationary electron.

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