Question

A Tau particle is generated by a particle physics experiment. If the Tau is travelling at 0.77 c, and its proper lifetime is measured to be 0.27 picoseconds. What is the fundamental lower limit on the uncertainty of the Tau's mass as measured in kg in the Tau's frame of reference?

Question 9 options:

A)

2.17E-39

B)

4.23E-13

C)

1.22E-03

D)

1.95E-22

E)

3.12E-41

Answer 1