Help needed in Threshold Concepts..

[Deepak247]

I want to know all about nuclear thresholds....where can i learn about them......? (e.g threshold energy and how particles behave under them.......different types of threshold energy and their behavior)

[ParticleGrl]

Threshold for producing what? Are you familiar with four-vectors/the energy-momentum four vector? You can generally work out threshold energies by working in the center of mass frame (where final state particles have no total momentum).

[Deepak247]

Threshold for producing particles.....i want to know more about the thresholds that existed after the big bang....