Higgs production The Higgs boson is an elementary particle that was detected at

Question

Higgs production

The Higgs boson is an elementary particle that was detected at CERN (the European Organization for Nuclear Research) in 2012. Consider a simplified scenario where the Higgs is created by colliding a single proton with a single antiproton. (In reality, two beams of protons collide with each other.) Take the rest energy of a proton (and antiproton) to be mc2 =1 GeV. (A “giga electron volt” is about 1.6 · 10 -10 J, but you don’t need to know this; just work with GeV.) Assuming that the rest energy of the Higgs mHc2 is about 125 GeV, how much energy is required (above the rest energies of the proton and the antiproton) to produce the Higgs if:

(a) A proton and antiproton have equal and opposite momenta?

(b) A moving proton collides with a stationary antiproton?

Explanation / Answer

If both have equal and opposite momentum so both are moving in oppsite direction so to produce higgs bosson we need more (125-(1-1))=125 GeV energy

If antiproton is stationary we need more

125-1=124 GeV energy

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