Science Wonders

Stage 5 of 5

LHC

The Large Hadron Collider stores two opposing proton beams in a 27 km ring and drives collisions at four main interaction points where major detectors observe debris.

Input

450 GeV proton bunches from SPS

Process

Superconducting magnetic steering, collision timing, synchronized crossing

Output

High-energy collisions for detector science

Energy

up to several TeV per beam

Interactive simulator

How the beam moves through this stage.

Beam life, optics, and detector timing are simplified to one visible crossing sequence.

Particleproton
Energyup to several TeV per beam
Beam formatbunch

Scale note

27 km ring with tunnel-level scale

Key terms

RF cavity, Synchrotron, and Superconducting magnet.

What happens, in order

  1. 01Input450 GeV proton bunches from SPS
  2. 02ProcessSuperconducting magnetic steering, collision timing, synchronized crossing
  3. 03OutputHigh-energy collisions for detector science

Key terms: RF cavity, Synchrotron, and Superconducting magnet.

Quick facts

Ring length
about 27 km

scale map

Magnets
Superconducting dipoles and quadrupoles
Collision points
ATLAS, CMS, ALICE, LHCb
Current model
Single train crossing events

Record sources

What anchors this machine page.

  • 01

    CERN Large Hadron Collider

    CERN / LHC machine and experiment roster / Checked 2026-05-02

    https://home.cern/science/accelerators/large-hadron-collider/

    Official public overview used for LHC scale, collider role, multi-TeV beam context, and the current LHC experiment roster.

  • 02

    CERN Accelerator Complex overview

    CERN / Accelerator complex overview / Checked 2026-05-02

    https://home.cern/science/accelerators/

    Official public summary used for accelerator principles, beamline framing, and the CERN accelerator network.

Next · Detector families

From collisions to the experiments that photograph them.

The LHC delivers collisions. The science comes from what the detectors catch next. Open any of the four flagship experiments.

Guided tour

Guided learning path

A four-step arc: follow the beam, see the aftermath, compare with spacetime signals, then test your intuition.

Continue · See the collision aftermath
  1. 01 · You are here

    Follow the beam

    Start with the injector chain so the rest of the site follows a physical sequence.

    Open
  2. 02 · Next

    See the collision aftermath

    See which detectors catch which particles after a collision.

    Open
  3. 03 · Next

    Compare with spacetime signals

    Switch to gravitational waves: tune mass, distance, and noise to find the signal.

    Open
  4. 04 · Next

    Test your intuition

    Short quizzes on accelerator ordering, detector choice, and signal tuning.

    Open