Multiple Choice
The reaction p + e- → 
+ e+ is not possible because
A) the baryon number is not conserved.
B) the lepton number is not conserved.
C) the angular momentum cannot conserved.
D) the charge is not conserved.
E) The statement is untrue; the reaction is possible.
Correct Answer:
Verified
Correct Answer:
Verified
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Q23: One of the particle groups listed below