Question 1
The following reaction can occur by the strong interaction:
π0 + n
→ K
+ +
Σ−. If the quark composition of the n is (udd), the
π° is (
), and the composition of the K
+ is (
), find the quark composition of the
Σ−.
◦
sss
◦
uds
◦
dds
◦
◦
Question 2
The law of conservation of baryon number is that
◦
the total number of baryons and leptons is conserved.
◦
the total number of baryons is conserved.
◦
the (number of baryons) − (number of antibaryons) is conserved.
◦
the total number of quarks is conserved.
◦
the (number of baryons) + (number of antibaryons) is conserved.