mercredi 23 novembre 2011

Closing in on the Higgs












CERN - European Organization for Nuclear Research logo.

23 Nov 2011

 The combined results as presented by ATLAS and CMS

On the final day of the Hadron Collider Physics symposium, HCP2011, the ATLAS and CMS experiments presented their first combined analysis on the search for the Higgs boson. A cornerstone of the Standard Model of particle physics, which describes fundamental particles and their interactions, the Higgs boson is among the top priorities for the research programme at the Large Hadron Collider. The study of ATLAS and CMS includes data collected up to the end of July, and rules out the existence of a Higgs boson with mass between 141 and 476 GeV at the 95% confidence level. If the Higgs boson exists, it must have a mass between 114 and 141 GeV. The LHC experiments will be able to demonstrate its existence, or show that it does not exist, during the course of 2012.

Getting around the LHC

Note:

The European Organization for Nuclear Research (French: Organisation européenne pour la recherche nucléaire), known as CERN, is an international organization whose purpose is to operate the world's largest particle physics laboratory, which is situated in the northwest suburbs of Geneva on the Franco–Swiss border. Established in 1954, the organization has twenty European member states.

The term CERN is also used to refer to the laboratory itself, which employs just under 2400 full-time employees/workers, as well as some 7931 scientists and engineers representing 608 universities and research facilities and 113 nationalities.

More information:

The combined results as presented by ATLAS and CMS on the Atlas website: http://atlas.ch/news/2011/ATLAS-CMS-combined-limits-higgs.html
       
On the CMS website: http://cms.web.cern.ch/news/atlas-and-cms-combine-summer-11-search-limits-standard-model-higgs

Images, Text, Credit: CERN.

Best regards, Orbiter.ch