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CMS and LHCb experiments reveal new rare particle decay

Geneva, 13 May 2015. In an article published today in Nature, the CMS and LHCb collaborations describe the first observation of the very rare decay of the B0s particle into two muon particles. The Standard Model, the theory that best describes the world of particles, predicts that this rare subatomic process happens about four times out of a billion decays, but it has never been seen before. These decays are studied as they could open a window to theories beyond the Standard Model, such as supersymmetry. The analysis is based on data taken at the Large Hadron Collider (LHC) in 2011 and 2012. These data also contain early hints of a similar, but even more rare decay into two muons of the B0, a cousin of the B0s.

HUG and CERN open an emergency response centre

Geneva, 5 May 2015. On Monday, the Hôpitaux Universitaires de Genève (HUG – University Hospitals of Geneva) and CERN1 opened an emergency response centre on the Swiss part of the CERN site. The centre is the result of a collaboration established under the auspices of the Swiss federal and Geneva cantonal authorities and aims to improve safety on the CERN sites and in the western part of the Canton of Geneva. Every day, around 9000 people are present on the CERN site.

Arts@CERN announces three winning artists and launches an open call

Geneva, 30 April 2015. Arts @ CERN, CERN1's official engagement with the arts, is today announcing three winning art projects from the different strands, Accelerate @ CERN and Collide @ CERN, as well as launching the international open call for Collide @ CERN in digital arts. Now in its fifth year, Arts @ CERN has welcomed more than 70 artists to the Laboratory.

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