All articles tagged with #large hadron collider
India’s six-decade partnership with CERN puts it at the center of the LHC upgrade and the global hunt for dark matter, with Indian labs contributing to magnet systems, cryogenics, detectors and high-performance computing that underpinned the Higgs boson discovery and will push physics beyond the Standard Model as CERN restarts after a $1.5B upgrade in 2030.
The Large Hadron Collider at CERN has entered a four-year Long Shutdown 3 to upgrade into the High-Luminosity LHC, which will raise collision rates by about tenfold and enable roughly 380 million Higgs bosons over its lifetime. The upgrade, which involves replacing thousands of magnets and other components, aims to deliver a much larger data set to probe the Higgs, dark matter, and the early universe. Operations are slated to resume in 2030 and continue into the 2040s, after which a new, higher-energy accelerator may replace it.
ATLAS physicists at CERN observed the excited Bc*+ meson, a heavy-quark bound state (charm quark with a bottom antiquark), produced in high-energy proton-proton collisions at the LHC. The Bc*+ rapidly decays to a Bc+ meson and a photon, which was identified indirectly when the photon converted into an electron–positron pair in the detector. The measured mass difference between Bc*+ and Bc+ is 64.5 ± 1.4 MeV, consistent with theoretical expectations and providing new data to refine models of heavy-quark dynamics and the strong force. Publication is set for Physical Review Letters.
Scientists at CERN used a rare Z-boson–tagged event to observe how a single quark traverses quark-gluon plasma, revealing fluid-like wake patterns that align with hydrodynamic predictions and confirming the primordial plasma behaved as a dense, flowing liquid in the universe’s first microseconds.
MIT and CERN recreated early-universe conditions by colliding lead ions at near-light speed in the LHC, tracing how quarks slow and generate a wake in quark-gluon plasma, providing definitive evidence that this primordial soup behaves like a liquid rather than a gas, with implications for understanding the birth of matter.
Physicists at CERN’s Large Hadron Collider (CMS collaboration) detected a subtle dip (less than 1%) in backward particle production as a high-energy quark moved through a tiny droplet of quark-gluon plasma, revealing a wake formed by energy transfer to the primordial fluid. By using Z bosons as clean markers, researchers could isolate this effect and gain a lab-side glimpse into the hot, liquid-like plasma that filled the early universe microseconds after the Big Bang.
Physicists analyzing LHC data from CERN used Z bosons as markers to track quarks moving through quark-gluon plasma, confirming that this primordial soup behaves like a liquid and creates wake patterns as it’s disturbed, a finding that supports long-standing theories about the early universe and provides new ways to study the properties of this exotic fluid.
The Large Hadron Collider (LHC) in Switzerland will be shut down starting June for about five years to undergo major upgrades to increase its collision capacity, with the goal of enabling more advanced experiments. During this period, CERN is also planning the development of the Future Circular Collider, a much larger and more powerful accelerator, although its future is uncertain due to high costs and scientific debates. The LHC's shutdown is part of ongoing efforts to deepen our understanding of fundamental physics, including the universe's origins.
The Large Hadron Collider (LHC) is being shut down temporarily for upgrades to increase its collision capacity, with a long-term plan to replace it with the even larger Future Circular Collider, aiming to continue groundbreaking discoveries in fundamental physics despite high costs and scientific debates.
Mark Thomson, a renowned physicist, takes over as Cern's director general and plans to shut down the LHC for upgrades to enhance its capabilities, while also preparing for the ambitious Future Circular Collider project to continue exploring fundamental questions about the universe.
Physicists at Brown University and the LHC continue to explore the Higgs boson, focusing on its interactions, potential implications for the universe's fate, and future collider projects, highlighting its fundamental role in understanding the universe and advancing particle physics.
The ATLAS Collaboration at the LHC has found evidence of rare Higgs boson decays into muons and a Z boson with a photon, providing deeper insights into the Higgs properties and potential hints of physics beyond the Standard Model, using combined data from Run 2 and Run 3.
The LHCb experiment at the LHC has achieved a highly precise measurement of the Z boson mass, finding it to be approximately 91.184 GeV with an uncertainty of 9.5 MeV, aligning with previous measurements and the Standard Model prediction, paving the way for future high-precision studies at the LHC and beyond.
Researchers at the Max Planck Institute have announced new findings on the Higgs boson, enhancing our understanding of its interactions with W and Z bosons, which are crucial to the Standard Model of particle physics. These discoveries, presented at the International Conference on High Energy Physics, confirm theoretical predictions and set the stage for future research at the High-Luminosity Large Hadron Collider. The findings not only validate existing theories but also open possibilities for discovering new particles or forces, potentially reshaping our understanding of the universe.
Researchers at the Max Planck Institute have made significant advancements in understanding the Higgs boson's interactions with other particles, particularly W and Z bosons, using data from the Large Hadron Collider. These findings, presented at the ICHEP 2024, confirm theoretical predictions of the standard model and enhance our understanding of particle mass acquisition. The results also set the stage for future research at the High-Luminosity LHC, potentially uncovering new physics beyond the standard model.