CERN

Applications are now open ⏱️ Join us this November in Prague, Czech Republic for the CERN Accelerator School CAS , in collaboration with Charles University, for a specialised course on Circular e+/e-  Colliders and Light Sources. The course is designed for postgraduate students, early-career professionals and experienced experts interested in physics and technologies behind next-generation electron-positron colliders and advanced synchrotron light sources. Over two weeks, participants will explore the challenges and opportunities of circular e+/e- colliders and low-emittance electron rings, while developing the specialised knowledge and technical skills needed to help shape the next generation of particle accelerators. 📍 Prague, Czech Republic 📆 8–20 November 2026 🔗 Registration: cas.web.cern.ch  #CAS2026 #CERNAcceleratorSchool

How do language models reason? 🧠 Join us today, Tuesday, 28 July at 16:00, for a special EP/IT Data Science Seminar with Prof. Maciej Besta from ETH Zürich, for a talk on Towards Effective and Efficient Reasoning Language Models. The seminar will explore recent approaches such as Chain-of-Thought, Tree of Thoughts and Graph of Thoughts, and how structured reasoning can help language models combine, refine and verify information more effectively. 📍Main Auditorium, 500/1-001. 📅 Tuesday, 28 July at 16:00 🔗 Find out more & watch the webcast: https://lnkd.in/drnSnqYb

Oxygen collisions at the LHC show new indications of extreme state of matter 🌟 All four main #LHC experiments have found new signs that oxygen and neon collisions may create the extreme state of matter that existed during the first microseconds after the #BigBang. Find out more: https://lnkd.in/ejRQkH37 ATLAS Collaboration CMS Collaboration ALICE Collaboration LHCb Collaboration

Welcome to the July/August edition of CERN Courier 💫 This issue reports on a ten-year search for a dark sector through missing energy, the open-source framework that unified beam simulation #AtCERN, two decades in which particle physics went global, and much more. Read more: cerncourier.com 📸 Credits: 1. Cover by Philippe Dinault 2. Julien Marius Ordan 3. & 4. CERN 5. X-ray, NASA/CXC/CfA/Á Bogdán; infrared, NASA/ESA/CSA/STScI; processing, NASA/CXC/SAO/P Edmonds and L Frattare 6. Max Badulin

Reading the layers beneath Lake Geneva 💧 Understanding what lies beneath the surface is essential to assessing any major underground infrastructure project. For the placement studies for the proposed Future Circular Collider (#FCC), this means developing the most accurate possible picture of the geological formations along the proposed tunnel route, including beneath Lake Geneva. Find out more about the geological investigations for the FCC studies: https://lnkd.in/duuiwk2p  #FutureCollider

#HiLumiLHC: new magnets reach full power 💫 The new generation of quadrupole magnets at the IT String test facility has reached its nominal current, validating key technologies for the #HiLumiLHC. Find out more: https://lnkd.in/e3YSnk-T

The puzzle of neutrinos, seventy years on Theorised in 1930 and discovered in 1956, the elusive neutrino still keeps many of its secrets, inspiring research efforts at CERN and around the world. Find out more: https://lnkd.in/d9YdhRfF The image shows Wolfgang Pauli in 1955, with an image of the telegram he received the following year informing him of the discovery of the neutrino. (Image: Wolfgang Pauli Archive/CERN) #Neutrino70 #Neutrino #ParticlePhysics #Science

CMS explores subtle matter–antimatter difference using beauty mesons⚛️ The CMS experiment uses its largest sample of beauty mesons to date to perform a high-precision test of subtle differences between matter and antimatter. Find out more: https://lnkd.in/e2bTy-S5

Hamamatsu Photonics Europe wins the 2026 ATLAS Collaboration & CMS Collaboration Industrial Award🏆 Hamamatsu Photonics has been awarded the 2026 ATLAS and CMS Industrial Award for their outstanding contributions to the High-Luminosity LHC (HL - LHC Project) upgrade. This recognition highlights the firm’s pivotal role in advancing detector technologies for both experiments, including the ATLAS Inner Tracker, CMS Outer and Inner Trackers, CMS High-Granularity Calorimeter, and CMS MIP Timing Detector. For decades, Hamamatsu Photonics has been a trusted partner, delivering high-quality silicon sensors, novel LGADs, SiPMs, and manufacturing support, enabling groundbreaking physics results and over 1,500 scientific publications for CMS alone. Their expertise has been instrumental in meeting the demanding technical requirements of the HiLumi LHC era. 💭"This unique partnership and shared mission will continue to drive the experiment’s success in the demanding High-Luminosity LHC era," commented Anadi Canepa, CMS Spokesperson. 💭"We are proud to continue working with a partner that has made such an important contribution to the success of ATLAS," said Stéphane Willocq, ATLAS Spokesperson. With ~1,000 m² of silicon wafers procured from Hamamatsu to prepare the ATLAS and CMS detectors for the high-luminosity era, this collaboration exemplifies how industry and research can push the boundaries of innovation together. Congratulations to the Hamamatsu Photonics, ATLAS, CMS and CERN teams involved!

A science seminar with the creator of C++ 💻 Join us this Tuesday, 14 July at 16:00, for a special Data Science Seminar with Prof. Bjarne Stroustrup, designer and original implementer of the C++ programming language, for a talk on 21st Century C++. 📍Online webcast (or Main Auditorium, 500/1-001 for CERN members) 📅 Tuesday, 14 July at 16:00 🔗 Find out more & watch the webcast: https://lnkd.in/e5yqjm6n