TEDxCERN with the theme ‘Breaking the rules’, on 9th October 2015, brings you ideas that challenge the norm with solutions that could transform lives.
The presentations will be grouped into two sessions: “rule breakers” (2.30 p.m. to 4.15 p.m.) and “visionaries” (5.15 p.m. to 7 p.m.).
The event will be broadcast live online.
For further information about the event, please see: http://tedxcern.ch.
Today CERN’s LHC accelerator and the experiments have resumed physics operation after a break of more than two years – now with proton-proton-collisions at the new record energy of 13 TeV. After the long shutdown and recommissioning period particle physicists all over the world are eagerly waiting for the first results, which can be expected in the next months. The new data taking period (“LHC season 2”) will last for a total of three years.
In a study published in the journal Nature the CMS and LHCb collaborations report the first observation of the decay of Bs0 mesons into pairs of muons. The study uses data recorded at CERNs LHC accelerator in the years 2011 and 2012. On average only about 3 in a billion of these mesons decay into muons. The significance of this measurement is due to the fact that the presence of new particles or processes could cause substantial variations of this branching ratio.
On the Easter weekend CERN’s LHC accelerator and the experiments were ready to restart after two years of preparations for the operation at higher energies. Within a few hours two proton beams were again circulating in the accelerator. At the same time the CMS experiment observed first collisions – in this case the collisions occurred between the circulating protons and elements of the accelerator and experiments and served for the calibration of the detector.