First Higgs measurements published by LHC: No Higgs Yet
June 20th 2011 04:34
The CMS experiment at the LHC has published their first results from the 2010 data: "Measurement of WW Production and Search for the Higgs Boson in pp Collisions at sqrt(s) = 7 TeV" (arxiv.org/abs/1102.5429) The measurement shows no evidence (yet) of the Higgs boson. They have ruled out a large mass range for candidate Higgs from 144GeV/c to 207GeV/c with 95% certainty.
The Higgs boson is predicted by Standard Model, but not observed in particle physics experiments till now. It is a consequence of the so-called Higgs mechanism which explains how most of the known elementary particles become massive. The Higgs boson would explain the difference between the massless photon and the massive W and Z bosons. The study of Higgs boson can be used to test the Standard Model and may lead to discover new physics beyond the Standard Model.
Video: 'The God Particle': The Higgs Boson
The Standard Model of Particle Physics: The Higgs Mechanism.
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