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Total images: 2
ATLAS-PHOTO-2025-055-1 - Small, Medium, Large, Original The event visualization shows a cutout of the LHC beam pipe at the center of the ATLAS detector, surrounded by the inner detectors of the ATLAS experiments (Pixel, SCT, and TRT). In the background, a part of the muon spectrometer (the New Small Wheel, NSW) is visible; the other parts of the detector have been hidden for a clearer view of the interaction point. Starting from the center, the image displays the 92 primary vertices (blue spheres) inside the beam pipe. From each primary vertex, many different particles are produced. The tracks of the charged particles, reconstructed by the inner detector, are shown as orange lines. In total, more than 3800 tracks are reconstructed in the proton-proton interaction.
ATLAS-PHOTO-2025-055-2 - Small, Medium, Large, Original The image shows three views of the same event. The top left view shows a transversal view of the event, where, from the center, the tracks of the charged particles as reconstructed in the inner detectors are shown (multicolor lines) as well as the energy deposits (yellow bars) in the electromagnetic and hadronic calorimeters. A blue line shows the reconstructed track of a muon. The bottom view shows the same event in a longitudinal projection, where the reconstructed 92 primary vertices are also shown, visualized as white spheres. The right view shows the energy deposits in the calorimeters represented on a projected surface of the ATLAS detector; this kind of plot (called a "Lego plot") shows the overall activity of an event.
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