ATLAS and CMS experiments present Higgs search status 13.12.2011

In a seminar held at CERN today, the ATLAS and CMS experiments presented the status of their searches for the Standard Model Higgs boson. Their results are based on the analysis of considerably more data than those presented at the summer conferences, sufficient to make significant progress in the search for the Higgs boson, but not enough to make any conclusive statement on the existence or non-existence of the elusive Higgs. The main conclusion is that the Standard Model Higgs boson, if it exists, is most likely to have a mass constrained to the range 116-130 GeV by the ATLAS experiment, and 115-127 GeV by CMS. Tantalising hints have been seen by both experiments in this mass region, but these are not yet strong enough to claim a discover

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However in August 2007 a new supervoid was confirmed in the constellation Eridanus, which is nearly a billion light years across.[3] Originally, it had been discovered in 2004, and was known as the 'WMAP Cold Spot'.

Stars are organised into galaxies, which in turn form clusters and superclusters that are separated by immense voids. Prior to 1989, it was commonly assumed that virialized galaxy clusters were the largest structures in existence, and that they were distributed more or less uniformly throughout the universe in every direction. However, based on redshift survey data, in 1989 Margaret Geller and John Huchra discovered the "Great Wall," a sheet of galaxies more than 500 million light-years long and 200 million wide, but only 15 million light-years thick. The existence of this structure escaped notice for so long because it requires locating the position of galaxies in three dimensions, which involves combining location information about the galaxies with distance information from redshifts. In April 2003, another large-scale structure was discovered, the Sloan Great Wall. However, technically it is not a 'structure', since the objects in it are not gravitationally related with each other but only appear this way, caused by the distance measurement that was used. One of the biggest voids in space is the Capricornus void, with an est. diameter of 230 million light years[2]. However in August 2007 a new supervoid was confirmed in the constellation Eridanus, which is nearly a billion light years across.[3] Originally, it had been discovered in 2004, and was known as the 'WMAP Cold Spot'.

http://space.newscientist.com/article/mg19626311.400-the-void-imprint-of-another-universe.html