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Updated: daily
Updated: daily
- ALICE probes the strong interaction three-body problemALICE probes the strong interaction three-body problem Illustration of the strong interaction in the proton–deuteron system produced in proton–proton collisions at the LHC. https://zenodo.org/records/13732468 (Image: ALICE/CERN) In an article recently published in Physical Review X, the ALICE collaboration presented its studies of correlations in the kaon–deuteron[1] and proton–deuteron systems, opening the door to precise studies of the forces in three-body nuclear systems. A fundamental force is typically described as an interaction between two objects. Extending this to more complicated systems is not always trivial. The description of strongly interacting three-hadron systems is key to understanding many phenomena in modern nuclear physics, such as the structure of nuclei, properties of high-density nuclear matter and the composition of neutron star cores. Proton–proton collisions at the LHC produce a large number of particles that are emitted very close to each other, at distan…
- Relive the CERN70 Community EventRelive the CERN70 Community Event “It is you, and everyone who came before you, who have written CERN’s history, and it is you who are continuing to shape its future,” said CERN Director-General, Fabiola Gianotti, to the CERN community on Tuesday, 17 September, as we came together to celebrate the Laboratory’s 70th birthday. About 8000 people, including members of the personnel, contractors, students, visiting scientists, friends and family participated in the event on the CERN Meyrin site. The evening included music, speeches and a special birthday cake parade. Hosts Paola Catapano and Stephan Petit welcomed the community (video 0:00:00 – 0:05:59) before being joined onstage by special guests (video 0:05:59 – 0:42:01), including children from CERN’s Jardin des Particules and crèche alumni; capacitive touchscreen pioneer, Bent Stumpe; Director for Research and Computing and former PhD student, Joachim Mnich; CERN alumni; Beamline for Schools students; a trailer by filmmaker Cedric Kla…
- Accelerator Report: Preparing the LHC and its injector complex for the 2024 lead-ion runAccelerator Report: Preparing the LHC and its injector complex for the 2024 lead-ion run In the early morning of 13 September, the LHC reached a significant milestone, surpassing 100 fb-1 of integrated luminosity delivered to ATLAS and CMS in a single year – a record – and the figure is still rising. Moreover, LHCb’s integrated luminosity target of 8.5 fb-1 was reached one day later. Of course, this does not mean that we will cease delivering collisions to the LHCb experiment – the LHC team will do its utmost to further increase the size of LHCb’s dataset. While the LHC continues to provide proton-proton collisions to the experiments, the injector chain is, simultaneously, providing protons to the fixed target experiments. It is also preparing for the lead-ion physics run, not only in the LHC but also in the SPS North Area and the PS East Area. After a brief test with magnesium ions from April to May this year, Linac3 was converted back to produce lead ions. The original plan was to i…
- CERN70 official event on 1 October: your questions answeredCERN70 official event on 1 October: your questions answered An invitation-only official event for high-level representatives of CERN’s Member States will take place on Tuesday, 1 October. (Image: CERN) CERN celebrates its 70th anniversary on 29 September 2024 and there have been events and activities all year, building up to the official CERN70 event on 1 October. EVENT: What is happening on 1 October at CERN? On Tuesday, 1 October, an official high-level ceremony will welcome political leaders from Member and Associate Member States, as well as from Observers. With speeches from the Director-General and the President of Council, as well as from Heads of State or Government, the event will showcase the Laboratory’s rich past and bright future. A series of short films will highlight significant milestones in CERN’s history, and the event will close with a performance from the Orchestre de la Suisse Romande (OSR). WEBCAST AND SOCIAL MEDIA: How can I be part of this ev…
- A Nobel ninetiethA Nobel ninetieth Join us on Friday 18 October, as CERN celebrates the 90th birthday of Carlo Rubbia, CERN Director-General from 1989 to 1994. Carlo Rubbia’s pioneering work on the proton–antiproton project led to the discovery of the W and Z bosons in 1983, earning CERN its first Nobel Prize in 1984. This discovery not only advanced understanding of the fundamental forces of nature through innovative detector and accelerator developments, but also established CERN as a global leader in particle physics, paving the way for the Large Hadron Collider (LHC). Carlo Rubbia (left) and Simon van der Meer celebrate being awarded the Nobel Prize in 1984. (Image: CERN) Now is your chance to hear first-hand about his remarkable contributions to physics, science and society. On Friday 18 October, from 2 p.m. in the Main Auditorium, distinguished scientists will present and discuss his major achievements, including his role in the development of the Standard Model…
- Take a virtual walk on the wild sideTake a virtual walk on the wild side Did you know that CERN is home to a rich diversity of flora and fauna? You can now embark on a captivating virtual tour of the CERN sites to discover the many species identified in a dedicated field survey carried out in 2022. Among them you'll encounter several threatened species, providing a unique glimpse into the sites’ ecological wealth. Conducting regular surveys is crucial for maintaining CERN’s biodiversity. They allow populations of flora and fauna to be monitored and help identify zones of biological interest, where concrete protection measures can be taken. The 2022 surveys concentrated on documenting flora, amphibians, insects and birds. The inventory of amphibians revealed that two protected frog species and two protected species of the newt family live on the CERN sites. The insect-based surveys focused on Lepidoptera (butterflies) and Orthoptera (locusts, grasshoppers and crickets), which serve as indicators of environmental…
- Computer Security: AI attacksComputer Security: AI attacks What a cool, new, artificially intelligent world! There’s ChatGPT to write your love letter, CV or paper. Loudly or Udio to compose your own music. DALL-E to produce “exceptionally accurate images” of your own creation. And eventually, in the future, much-improved AI might allow you to rewatch your favourite movie with you starring in the main role. Stefan becomes Ethan, James or Obi-Wan! Copyright issues aside, the future has plenty of ideas in store. And there are also AI and LLMs (large language models) “to remarkably increase the efficiency, sensitivity and modelling of CERN experiments”. Or to help with the stock market and portfolio management. But with every good idea comes the dark side. AI used for military applications*. Or for cyberattacks. So, while AI – coming with its own computer security problems, too – might make daily life easier, it will also open up a new series of attack vectors. The obvious first vector is that AI has started to be m…
- Detector now collecting data in Japan after upgrade at CERNDetector now collecting data in Japan after upgrade at CERN The ND280 detector, an essential part of the T2K (Tokai to Kamioka) neutrino experiment in Japan, has undergone a significant upgrade to enhance its ability to precisely measure neutrino interactions. T2K aims to study neutrinos to improve our understanding of matter-antimatter asymmetry in the universe. At the start of its second data collection phase in June 2024, the upgraded near detector ND280, which contains multiple subdetectors assembled and tested at CERN, was used for the first time. This marks the end of an extraordinary journey that started in 2017 as an R&D project between T2K and CERN’s Neutrino Platform. A time projection chamber for the ND280 Upgrade, built and tested at CERN. (Image: CERN) After all the parts arrived in Japan, the detector was tested on the surface before being lowered it into its final position about 50 metres below ground in late 2023. “ND280 passed its first crucial test with flying…
