In beta^+ decay, the quark change is:

  1. no change
  2. an up quark changes into a down quark
  3. a down quark changes into an up quark
  4. an up quark changes into a strange quark
Answer

B) an up quark changes into a down quark

u to d + e^+ + nue. SLO P-11-F-15 · Knowledge

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