c) The energies of K+, 7- and A are measured in the frame of reference where the proton is stationary. Order the K+, ¯ and A energies from largest to smallest, carefully justifying your answer. Numerical values are not required and you should assume that ma > mK > m. d) In the frame of reference where the proton is stationary, show that the K+ is produced with speed V(Emin)2 – m2 Emin + mp | UK e) The K+ moving with speed vk decays through the reaction K+ µt + vµ. Show that the maximum energy of the ut is 1 1+ VK 1- VK + m 1- VK Emax 1+ VK 2m к

c) The energies of K+, 7- and A are measured in the frame of reference where the proton is stationary. Order the K+, ¯ and A energies from largest to smallest, carefully justifying your answer. Numerical values are not required and you should assume that ma > mK > m. d) In the frame of reference where the proton is stationary, show that the K+ is produced with speed V(Emin)2 – m2 Emin + mp | UK e) The K+ moving with speed vk decays through the reaction K+ µt + vµ. Show that the maximum energy of the ut is 1 1+ VK 1- VK + m 1- VK Emax 1+ VK 2m к