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New results from OPERA on neutrino properties (23 September 2011)
Description Webcast : Please note that this event will be available live via the CERN Webcast Service . In case of congestion, please try alternative sites at groovygecko webcast or elmundo.es webcast . If you cannot attend the event live, it is being recorded and you will be able to access it later on.
Le grand amphithéâtre de l'Organisation européenne pour la recherche nucléaire (CERN), près de Genève, a été pris d'assaut, vendredi 23 septembre. Des centaines de scientifiques, dont un grand nombre de jeunes gens, ont envahi les lieux, équipés d'ordinateurs portables et de smartphones, bien décidés à immortaliser une réunion "historique". Dans le monde entier, via une retransmission sur Internet et un flot de tweets, elle est suivie en direct par des chercheurs avides d'en savoir plus sur une annonce extravagante : une particule, le neutrino, irait plus vite que la lumière ! Cette limite est réputée infranchissable dans le cadre de la théorie classique de la relativité restreinte d' Albert Einstein , l'un des piliers de la physique . Dario Auterio, le responsable de l'analyse de ces données inattendues, chercheur au CNRS, est donc venu livrer au monde des physiciens matière à perplexité et à débat.
Excès de vitesse des neutrinos - LeMonde.fr
CERN - the European Organization for Nuclear Research
The Moebius Strip © Cie Gilles Jobin 2007 (Image: Dorothée Thébert) The first Collide@CERN-Geneva prize in Dance and Performance was today awarded by jury to the 47-year-old Swiss-born dancer and choreographer Gilles Jobin for his proposal to use interventions and dance to explore the relationship between mind and body at the world's largest particle physics laboratory. Grand opening today of CERN travelling exhibition 'Accelerating Science' in Ankara, Turkey: https://t.co/Olw3Hdg8 http://t.co/OdTJweHJ Mon 02 Apr
Press Release
The ICARUS experiment at the Italian Gran Sasso laboratory has today reported a new measurement of the time of flight of neutrinos from CERN to Gran Sasso. The ICARUS measurement, using last year’s short pulsed beam from CERN, indicates that the neutrinos do not exceed the speed of light on their journey between the two laboratories. This is at odds with the initial measurement reported by OPERA last September. "The evidence is beginning to point towards the OPERA result being an artefact of the measurement," said CERN Research Director Sergio Bertolucci, "but it's important to be rigorous, and the Gran Sasso experiments, BOREXINO, ICARUS, LVD and OPERA will be making new measurements with pulsed beams from CERN in May to give us the final verdict. In addition, cross-checks are underway at Gran Sasso to compare the timings of cosmic ray particles between the two experiments, OPERA and LVD.