The Standard Model of particle physics postulates the existence of the Higgs boson, a hypothetical mass elementary particle. The Higgs boson is the simplest explanation for how mass and energy gave way to matter, forming the stars and planets 13.7 billion years ago. Physicists around the world are monitoring the collisions in the Large Hadron Collider, or LHC,, an accelerator machine located under the French-Swiss border, in search of the size of the Higgs boson. Data presented at the Lepton-Photon Interactions Conference in Mumbai last week limit the Higgs boson to a very light particle. If the Higgs boson does not exist, it is unclear what will replace it as an explanation, but work on the project will lead to new physics. Scientists plan to continue collecting data until the end of 2012, at which time the LHC will be shut down for maintenance.
-compiled by Amanda Gellett
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