Wednesday, September 10 will be the first movement of a beam in the Hadron Collider (LHC, Large hadron collider) at CERN in Geneva. The teams of CNRS laboratories and CEA have played a pioneering role in this project by a collaboration of over 7000 scientists from five continents. All now await with impatience the first results. This event will be broadcast by Eurovision. The CNRS and the CEA invite you to follow this direct entry into service from 9 am to 10:30 on September 10, 2008 in Paris. On 10 September, the first beam of protons should move in the LHC, giant 27 kilometers in circumference, an energy injection of 450 GeV (0.45 TeV). The eight sectors of the LHC are now at their operating temperature of -271 ° C or 1.9 degrees above absolute

zero. Once traffic beams

Figure 1 - Cutaway of the LHC accelerator and its four experiments.

stable established, they will, in the days following a collision put into four points in the ring detectors Alice, Atlas, CMS and LHCb. It will then implement the system acceleration of the LHC, which will bring energy to 5 TeV, making it the particle accelerator world's strongest, bringing in fact particle physics research in areas still unexplored. In France, more than 400 physicists and engineers ECA / Irfu and CNRS/IN2P3 participate in the LHC project. They have contributed, from the outset, the genesis and development of the four detectors. Some key elements of these great instruments bear the mark of this contribution, which relied on a strong technical potential, engineering and construction. In the 80 years, French teams have been the source of choice for innovative accelerator, sensors and associated electronics resistant to

Figure 2 - The first interconnection Figure 2 - The first interconnection of the LHC.

radiation. They are now participating in the launching of the latter and the acquisition and interpretation of data. France is also the peak in the emergence of the concept of grid computing and in the definition and establishment of the infrastructure for data analysis, including the world's largest computer centers in the world, CC-IN2P3 the CNRS and the CEA and grid computing LCG. The engineers and technicians CNRS/IN2P3 and CEA / Irfu have also contributed to the design and implementation of superconducting magnets quadrupoles and part of the cryogenic system of the accelerator. The magnets giant Atlas and CMS have also been designed in France. At the CEA, all these activities today involves the Institute for Research on the basic laws of the Universe (Irfu) in Saclay Service and low temperatures (Institut nanoscience and cryogenics) in Grenoble. At the CNRS, they involve 11 laboratories of the Institute of nuclear physics and particle physics (IN2P3), which all have a mixed unit status associated with a university. To this we must add the Computing Centre of Lyon and grid computing LCG. -------------------------------------------------- ------------------------------ Monitoring boot -- The CNRS and the CEA invite you to follow live the start of LHC, in the presence of physicists and engineers from the CEA and CNRS, from 9 am to 10:30 on September 10, 2008, the Bar "Father Quiet" (16, rue Pierre Lescot, Paris 1) -- The event will be followed on the Web site since http://webcast.cern.ch and will be broadcast by the Eurovision network (http://lhc-first-beam.web.cern.ch/lhc-first -beam/satellite.html) Information on: http://lhc-first-beam.web.cern.ch/. -- Photos will be broadcast live: http://cdsweb.cern.ch/collection/LHC% 20First% 20Beam% 20Photos NB: the high resolution will be accessible via a username and password. o More information: http://cdsweb.cern.ch/help/high-res-multimedia o To create an account: https: / / cernaccount.web.cern.ch / cernaccount / RegisterAccount.aspx -------------------------------------------------- ------------------------------ DAY GENERAL PUBLIC On 11 October 2008, the CNRS, CEA and the Cite des Sciences et de l'Industrie organize an exceptional day for the general public in order to plunge back into the epic of the LHC and relive it starts a month earlier. Scientists and engineers CNRS/IN2P3, CEA and Cern attending the City, explain and comment, images, technical and scientific challenges posed this technological prowess. A point will be made on the project directly with the Cern. http://www.cite-sciences.fr/francais/ala_cite/college/v2/html/2008_2009/cycles/cycle_298.htm