An unstable particle is produced in a laboratory. After its creation, it travels 1.00 m in 4.0 ns, before decaying to other particles.
(a) What is the lifetime of the particle in its rest frame?
(b) If the particle is created in the lab’s rest frame from a total energy of 20 GeV, and all of the energy goes into the particle, what is its mass (in GeV/c2)?
(c) According to the lab’s rest frame, what is the particle’s momentum (in GeV/c) prior to decay?
we have to find the lifetime of the particle in rest frame that is to
from the question given
distance travels so1.00m in 4ns(newton second)
the equation is t=to/1-v2/c2 *so
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