Weakly decaying negative particles may live long enough to come to rest in matter and be captured by a nucleus Consider the simplest case of the capture by a proton (a) Evaluate the Bohr radius for the p system (muonium), the p system (pionium), the K p system (kaonium) and the pp system (antiprotonium) (b) Calculate the energy released in the capture of an electron at rest into the ground state by a proton

Question: Weakly decaying negative particles may live long enough to come to rest in matter and be captured by a nucleus. Consider the simplest case of

Weakly decaying negative particles may live long enough to come to rest in matter and be captured by a nucleus. Consider the simplest case of the capture by a proton.

(a) Evaluate the Bohr radius for the μ ̅ p system (muonium), the π ̅ p system (pionium), the K ̅ p system (kaonium) and the p̅p system (antiprotonium).

(b) Calculate the energy released in the capture of an electron at rest into the ground state by a proton.

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