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BJAY
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Homework Statement
Consider the particle decay:
A0 → p + (pi)−
(a) In the rest frame of the A0 particle, calculate the momentum of the p and of the (pi)−
(express the answer in MeV/c).
(b) In the rest frame of the A0 the p and (pi)− emerge back to back. Suppose now that
the A0 is not at rest but is traveling such that it has a total energy of 2000 MeV
as observed by a stationary observer. If a large number of A0 decays was observed,
calculate the minimum and maximum proton momentum that this observer would
expect to see in his/her frame of reference.
Homework Equations
Particle Masses (MeV/c2):
(Not sure what its called) A0 = 1116
(pi minus) pi− = 140
(proton) p = 938
(K minus) K− = 494
this may be of use: E^2 = p^2*c^2 + m^2*c^4
The Attempt at a Solution
for part a) i put into the above equation E=1116 MeV/c^2(mass of parent particle) and m^2*c^4 = 140 + 938 MeV/c^2. Rearranged equation so its in terms of p and the ceclulated that. I am not 100% on this though so any help would be good. Part b) not very sure at all, i don't really understand the question to be honest. sorry the question might be hard to understand, only my first post. thanks for any help!
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