Consider a collision between a cosmic ray proton and a photon in the cosmic microwave background whose

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Consider a collision between a cosmic ray proton and a photon in the cosmic microwave background whose energy corresponds to the ambient temperature of 2.7 K. Estimate the minimum proton energy required to produce

(a) An e⁺e⁻ pair,

(b) A proton–anti proton pair.

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Particle Physics

ISBN: 978-1118912164

4th Edition

Authors: Brian R. Martin, Graham Shaw

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Question Posted: Dec 13, 2018 11:58 AM

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Consider a collision between a cosmic ray proton and a photon in the cosmic microwave background whose

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The energy of the photon is k 32k B T where k B is Boltzmanns constant k B 8617 10 11 MeVK 1 giving ...View the full answer

Particle Physics

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