Electron-positron collision
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Electron-positron collision
Particle tracks from an electron-positron collision seen by the L3 detector at CERN (the European particle physics laboratory) near Geneva, Switzerland. L3 was built around the large electron positron (LEP) accelerator ring, which ran from 1989-2000. Elements of the detector are outlined in red. The collision produced a J/psi meson. This particle is not seen, but is revealed through its decay products; a muon (blue line) and antimuon (green line). J/psi consists of a charm quark bound with a charm antiquark
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Media ID 9225989
© CERN/SCIENCE PHOTO LIBRARY
Cern Collision Cosmological Cosmology Decay Products European Particle Physics Laboratory Experiment Fundamental Particles Geneva High Energy Matter Muon Particle Accelerator Particle Detector Particle Physics Particle Track Structure Of Matter Subatomic Particles Switzerland Trace Traces Tracks Trajectories Trajectory Physical
EDITORS COMMENTS
This print captures the mesmerizing aftermath of an electron-positron collision, as observed by the L3 detector at CERN, near Geneva, Switzerland. The L3 detector was a crucial component built around the large electron positron (LEP) accelerator ring that operated from 1989 to 2000. Outlined in vibrant red, the elements of this state-of-the-art particle detector stand out against a mysterious black background. Although invisible to the naked eye, this collision resulted in the creation of a J/psi meson – an elusive particle composed of a charm quark bound with its antimatter counterpart, a charm antiquark. The true nature of this exotic J/psi meson is unveiled through its decay products: a striking blue line representing a muon and an elegant green line symbolizing an antimuon. These subatomic particles trace their trajectories across space-time like cosmic brushstrokes on an invisible canvas. This image not only showcases groundbreaking research conducted at CERN but also highlights humanity's relentless pursuit to unravel the mysteries surrounding matter and our universe's structure. It serves as a testament to our insatiable curiosity about fundamental particles and their behavior within high-energy collisions. As we peer into this intricate web of tracks and traces left behind by these subatomic entities, we catch glimpses into realms beyond our everyday perception – unveiling secrets that deepen our understanding of both cosmology and physics itself.
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