standard model

standard model

**Simulation** of a heavy non-Standard-Model Higgs boson produced at 13 TeV

5d ago
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Description

In this simulated collision event at a centre-of-mass energy of 13 TeV, gluons from the colliding protons fuse to produce a heavy non-Standard-Model Higgs boson, with mass of 700 GeV, more than five times as massive as the recently discovered Higgs boson predicted by the Standard Model. The heavy Higgs quickly decays to two neutral “X” particles (theorised but not yet observed), each of which in turn travel some distance in the CMS detector (about 10 cm on average) before decaying to two quarks. The four cones in the event display represent the jets (sprays of light hadrons) produced by these quarks. An event of this type is predicted by models of “hidden sector” particles that communicate only weakly with the particles of the Standard Model. Credit: Thomas McCauley Copyright: CERN, for the benefit of the CMS Collaboration