Q97 · Practice questionSimple familiar3 marks
QUESTION 97 (3 marks)
Consider the interaction . Show that baryon number and electric charge are conserved.
WORKED SOLUTION
3 marksPractice marking scheme
ANSWER
Initial and final baryon number are both 0; initial and final electric charge are both 0.
Worked solution
Initial baryon number is . Each pion is a meson, so each has and the final total is 0. Initial charge is ; final charge is . Both quantities are conserved.
Calculates initial and final baryon number.
Calculates initial and final charge.
Concludes both are conserved.
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