Interaction Questions

Question 1

Is this interaction able to happen:
P + anti(ν) = N + e+

Answer 1

Allowed

Question 2

Is this interaction possible:
P + e- = N + anti(ν)

Answer 2

Not allowed

Question 3

Is this interaction possible:
π+ = μ+ + ν

Answer 3

Allowed

Question 4

Is this interaction possible:
P + P = P + P + (K+) + (K-)

Answer 4

Allowed