Noted: The authors of the note, led by physicist Sau Lan Wu of the University of Wisconsin-Madison, say that ATLAS saw two photons whose energies add up to 115 gigaelectronvolts GeV. That?s the sort of thing you might expect if the Higgs boson had a mass of 115 GeV divided by the speed of light squared. Because energy and mass are related by Einstein?s famous E=mc2 equation, particle physicists often speak of mass and energy interchangeably. For comparison, a proton has a mass of about 0.9 GeV/c2.
Office of Strategic Communication