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ALICE gets the green light for new subdetectors

Two detector upgrades of ALICE, the dedicated heavy-ion physics experiment at the Large Hadron Collider (LHC), have recently been approved for installation during the next long shutdown of the LHC, which will take place from 2026 to 2028. The first one is an upgrade of the innermost three layers of the Inner Tracking System (ITS3), and the second is a new forward calorimeter (FoCal), optimised for photon detection in the forward direction of the ALICE detector. High-energy collisions of heavy ions like lead nuclei at the LHC recreate quark–gluon plasma: the hottest and densest fluid ever studied in a laboratory. Besides studying the properties of quark–gluon plasma, the ALICE programme covers a broad array of topics involving strong interaction, such as determining the structure of nuclei and the interactions between unstable particles, as presented in "A journey through the quark-gluon plasma and beyond". Inner Tracking System (ITS3) ALICE’s current Inner Tracking System, installed for the ongoing LHC run, is the world’s largest pixel detector to date, with 10 m2 of active silicon area and nearly 13 billion pixels. The new Inner Tracking System, ITS3, builds on the successful use of monolithic active pixel sensors and takes this concept to the next level. “ALICE is like a high-resolution camera, capturing intricate details of particle interactions. ITS3 is all set to boost the pointing resolution of the tracks by a factor of 2 compared to the current ITS detector,” said Alex Kluge and Magnus Mager, the project leaders of ITS3. “This will strongly enhance the measurements of thermal radiation emitted by the quark–gluon plasma and provide insights into the interactions of charm and beauty quarks when they propagate through the plasma.” The ITS3 sensors are 50 µm thick and as large as 26×10 cm2. To achieve this, a novel stitching technology was used to connect individual sensors together into a large structure. These sensors can now be bent around the beampipe in a truly cylindrical shape. The first layer will be placed only 2 mm from the beampipe and 19 mm from the interaction point. It can now be cooled by air instead of water and has a much lighter support structure, significantly reducing the materials and their effect on the particle trajectories seen in the detector. Forward Calorimeter (FoCal) The FoCal detector consists of an electromagnetic calorimeter (FoCal-E) and a hadronic calorimeter (FoCal-H). FoCal-E is a highly granular calorimeter composed of 18 layers of silicon pad sensors, each as small as 1×1 cm2, and two additional special layers with pixels of 30×30 μm2. FoCal-H is made of copper capillar tubes and scintillating fibres. “By measuring inclusive photons and their correlations with neutral mesons, and the production of jets and charmonia, FoCal offers a unique possibility for a systematic exploration of QCD at small Bjorken-x. FoCal extends the scope of ALICE by adding new capabilities to explore the small-x parton structure of nucleons and nuclei,” said Constantin Loizides, project leader of FoCal at the ALICE collaboration. The newly built FoCal prototypes have recently been tested with beams in the CERN accelerator complex, at the Proton Synchrotron and Super Proton Synchrotron, demonstrating their performance in line with expectations from detector simulations. The ITS3 and FoCal projects have reached the important milestone of completing their Technical Design Reports, which were endorsed by the CERN review committees in March 2024. The construction phase of ITS3 and FoCal starts now, with the detectors due to be installed in early 2028 in order to be ready for data taking in 2029.

Magnus-mager , Alex-kluge , Constantin-loizides , Large-hadron-collider , Inner-tracking-system , Tracking-system , Proton-synchrotron , Super-proton-synchrotron , Technical-design-reports , Physics , Ern

ALICE Gets Green Light For New Subdetectors

ALICE Gets Green Light For New Subdetectors
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Magnus-mager , Alex-kluge , Constantin-loizides , Large-hadron-collider , Inner-tracking-system , Tracking-system , Proton-synchrotron , Super-proton-synchrotron , Technical-design-reports ,

CERN's Edge AI Data Analysis Techniques Used to Detect Marine Plastic Pollution

CERN's Edge AI Data Analysis Techniques Used to Detect Marine Plastic Pollution
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Athens , Attikír , Greece , Neural-network , Earth-observation , Large-hadron-collider , Sioni-summers , Deep-neural-network ,

Book Review: To the Ends of the Earth - A Grand Tour for the 21st Century - Spacing National

Book Review: To the Ends of the Earth - A Grand Tour for the 21st Century - Spacing National
spacing.ca - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from spacing.ca Daily Mail and Mail on Sunday newspapers.

Germany , Greenland , Greece , Israel , Nevada , United-states , Italy , Indonesia , Greek , Palestine , German , Mary-shelley

Physical Analogies and Field Theory - 3 Quarks Daily 3 Quarks Daily

Matt Strassler's ambitious new pop-physics book offers novel analogies for the Higgs mechanism, aiming for accuracy and avoiding shortcuts.

Carl-sagan , Mark-watney , Matt-strassler , Lisa-randall , David-kordahl , Impossible-sea , How-everyday-life-emerges , Cosmic-ocean , Large-hadron-collider , Anthony-zee , Quantum-field-theory

What is the Large Hadron Collider at CERN and what does it do?

Learn more about the Large Hadron Collider at CERN what does it when colliding particles at high speeds to discover the inner workings

Switzerland , France , Technology-news , Elementary-particle-research , Large-hadron-collider , Higgs-boson , Particle-research , Boson-discovery , Theoretical-physics , Real-world-applications , Vehicle-efficiency

Theory Thesis Wins APS Dissertation Award

Zhite Yu has been awarded the 2024 J.J. and Noriko Sakurai Dissertation Award in Theoretical Particle Physics. The award was presented to Yu at the APS April Me

Switzerland , Jun-john-sakurai , Zhite-yu , Jianwei-qiu , Noriko-sakurai , Jj-sakurai-prize-fund , Division-of-particles , Theory-center , Office-of-science , Fields-executive-committee , Michigan-state-university , Jefferson-lab-continuous-electron-beam-accelerator-facility

CERN's edge AI data analysis techniques used to detect marine plastic pollution

Earth Observation (EO) and particle physics research have more in common than you might think. In both environments, whether capturing fleeting particle collisions or detecting transient traces of ocean plastics, rapid and accurate data analysis is paramount. On this Earth Day, as we reflect on our responsibility to reduce plastics for the benefit of our society and all life on our planet, we are excited to present a new EU project, Edge SpAIce. It applies CERN’s cutting-edge AI technology to monitor the Earth’s ecosystems from space in order to detect and track plastic pollution in our oceans. “In particle physics, the trigger system plays a critical role by swiftly determining which data from the particle detector should be retained, given that only a small fraction of the 40 million collision snapshots taken each second can be recorded. As the data influx at the Large Hadron Collider (LHC) has grown significantly over the years, physicists and computer scientists are continually innovating to upgrade this process - and this is where AI technology comes in,” says Sioni Summers, a CERN physicist working on the CMS experiment at the LHC, who is supervising this work. Edge SpAIce is a collaborative endeavour involving CERN, EnduroSat (BG) and NTU Athens (GR) and coordinated by AGENIUM Space. Its aim is to develop a specially designed on-board system for satellites that will make it possible to acquire and process high-resolution pictures using a DNN (Deep Neural Network). The system will use the “edge AI” approach, in which data is processed in near real-time directly on the satellite, mirroring the efficient filtering of LHC data in particle detectors at CERN. This means that it is not necessary to transmit all of the captured data back to Earth but only the relevant information - in this case, the presence of marine plastic litter. The system will also be deployed on FPGA hardware developed in Europe, which will improve competitiveness. This could open the door for a whole new market for EO services and applications. As modern life increasingly relies on technology, the solution that the project offers adeptly addresses the growing demand for data processing and the rapid expansion of EO satellites. By eliminating the need for heavy processing in Earth-based data centres, it not only reduces the carbon footprint but also helps to relieve the burden on these facilities. The innovative approach holds potential for broader applications in domains such as agriculture, urban planning, disaster relief and climate change. Additionally, this technology will provide environmental scientists and policymakers with invaluable data for targeted clean-up operations. It will advance our understanding of plastic pollution patterns, thereby enhancing our capacity to address environmental challenges effectively. “AGENIUM Space is thrilled to have found synergies with CERN in developing innovative solutions for our planet’s future,” said Dr Andis Dembovskis, a business development executive with AGENIUM Space. The Edge SpAIce project exemplifies how creative thinking by partners across diverse fields can lead to a collaborative knowledge transfer project that tackles major societal challenges. To discover how other CERN knowledge transfer and innovation projects are making a positive impact on the environment, please visit: https://kt.cern/environment

Athens , Attikír , Greece , Neural-network , Earth-observation , Earth-day , Large-hadron-collider , Sioni-summers , Deep-neural-network , Physics , Ern

Theory Thesis Wins APS Dissertation Award

Zhite Yu has been awarded the 2024 J.J. and Noriko Sakurai Dissertation Award in Theoretical Particle Physics. The award was presented to Yu at the APS April Me

Switzerland , Noriko-sakurai , Jianwei-qiu , Chris-patrick , Zhite-yu , Jun-john-sakurai , Jefferson-lab-continuous-electron-beam-accelerator-facility , Jefferson-lab , Michigan-state-university , Office-of-science , Division-of-particles , Fields-executive-committee

Large Hadron Collider Restarts Operations After a 3-Year Break for Upgrades

Large Hadron Collider Restarts Operations After a 3-Year Break for Upgrades : Rashtra News #Large #Hadron #Collider #Restarts #Operations #3Year #Break #Upgrades The Large Hadron Collider restarted Friday after a three-year break for upgrades that will allow it to smash protons together at even greater speeds, in the hope of making new ground-breaking discoveries.It will

France , Cambridge , Cambridgeshire , United-kingdom , Switzerland , Harry-cliff , Rhodri-jones , Cambridge-university , Large-hadron-collider , Standard-model ,