Radiation can be either the emission of electromagnetic waves or sub-atomic particles. In general the definition of radiation is the emission of energy.
At subatomic levels there is no black and white distinction between mass and energy, hence the concept of mass-energy, alluding to the fact...
Hello there,
I am looking at the decays of Heavy sterile neutrinos in the their mass states to Z bosons.
Using the feynman rules, how would I go about calculating the decay amplitude. I have only ever seen cases where the Z boson is a propagator. Would my expression look something like this...
And a nice thing to remember about these "exchange" particles is that the force they mediate is inversely proportional to the mass of the particles themselves. This is why gravity and the electromagnetic forces have an infinite range as gravitons and photons are seen to have zero mass. Whereas...