AQA AS PHYSICS 7407/1 PAPER 1 VERSION 1.0 FINAL QUESTIONS WITH MERGED ANSWERS |JUNE 2023
A strong interaction between a negative kaon (K−) and a proton (p) produces an omega-minus (Ω−) particle, a neutral kaon (K0) and an unidentified particle Y. The interaction is: K− + p → Ω− + K0 + Y Table 1 contains information on the particles in this interaction. Table 1 K− p Ω− K0 Y Rest energy / MeV 493.8 938..8 493.8 Baryon number +1 +1 0 Charge −1e +1e −1e 0 Strangeness −1 0 −3 +1 0 1 . 1 Complete Table 1. [2 marks] 0 1 . 2 Calculate, in J, the rest energy of the Ω−. [2 marks
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