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    Physics for Scientists
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    Exam 46: Particle Physics and Cosmology
  5. Question
    A K<sup>0</sup> Particle at Rest Decays into a π<Sup>+</sup> and a π<Sup>−</sup>
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A K0 Particle at Rest Decays into a π+ and a π−

Question 4

Question 4

Short Answer

A K0 particle at rest decays into a π+ and a π−. What will be the speed of each of the pions? The mass of the K0 is 497.7 MeV/c2 and the mass of each π is 139.6 MeV/c2.

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