3/30/2023 0 Comments Lepton radiation![]() There are quarks, anti-quarks and gluons inside the proton ready to have collisions and when such particles collide, the most likely thing to happen is that they will scatter off each other like two billiard balls, causing them to fly out sideways to the beam. What kind of new physics can produce multi-lepton events?Īt a proton-proton collider, quarks, anti-quarks and gluons are made with ease.Fake isolated leptons: why studying rare events can be very hard.So without being too specific about what new physics we’re looking for, we can go check to see whether the rate for multi-lepton production is consistent with the small rate predicted by the Standard Model’s equations. ![]() And a variety of speculative ideas for new physics that might be observable at the LHC can significantly increase the rate for producing three leptons and/or anti-leptons in collisions where the total detected energy - from the leptons/anti-leptons and/or other particles (neutrinos, quarks, anti-quarks, gluons, or new invisible particles) - is high. Two leptons (or anti-leptons) are still more rare to make three at once is very rare indeed. Leptons are rarely produced at a proton-proton collider by effects of the known particles and forces (the “Standard Model” of particle physics). Why is it a good idea to look for new physics at the Large Hadron Collider (LHC) in collision events that produce three or more charged leptons or anti-leptons? The basic principle is simple.
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