办事指南

Fleeting particle has shades of Higgs

点击量:   时间:2019-03-15 08:17:00

By Zeeya Merali THE world’s most wanted particle, the Higgs, may have already appeared under our very noses without anyone noticing. The hypothetical Higgs boson, which is thought to give all other particles their mass, was first proposed in the 1960s as part of the standard model of particle physics. Other models known as “supersymmetric” theories, which posit a heavy counterpart for every particle in the standard model, predict the existence of many different Higgs bosons, each with a different mass. It is the lightest one of these that may have already been produced,