Exam-style question
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In a particle interaction, if the initial baryon number is 2 and the final baryon number is 1, what can be concluded?.
- A.The interaction is allowed.
- B.The interaction violates baryon number conservation.
- C.The interaction is impossible.
- D.The interaction conserves lepton number.
Model answer
What a good answer should say
- The interaction violates baryon number conservation.
Explanation
Why this works
Baryon number must be conserved in particle interactions; thus, a change from 2 to 1 indicates a violation of this conservation law.
Common mistake
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