Science Takes a Pause: Large Hadron Collider Shut Down Until 2030 for Major Upgrade

Large Hadron Collider Goes Dark for Decade-Long Transformation

According to НВ — Техно: On July 1 at 2:30 PM, the Large Hadron Collider (LHC) was powered down and will remain offline until 2030. The goal: a complete overhaul into the High-Luminosity Large Hadron Collider (HiLumi LHC). This massive engineering effort will dramatically boost the machine's sensitivity and particle collision rates, unlocking new frontiers in particle physics research.

Buried 27 kilometers underground along the French-Swiss border near Geneva, the LHC is a circular tunnel that has been the centerpiece of high-energy physics for years. Now switched off, its next activation is scheduled for 2030. Once upgraded, the detector will be roughly ten times more sensitive than the original version, and the number of particle collisions will increase by about threefold compared to current capabilities.

Extended Shutdown and Retooling: LS3

This pause marks the third major long-term shutdown in the collider's history, officially labeled "Long Shutdown 3" (LS3). Inside the tunnel, specialists must dismantle and replace 1.2 kilometers of magnets and other components with cutting-edge equipment. Thousands of engineers, physicists, technicians, and support staff will be involved across dozens of associated projects throughout the entire scientific complex.

'With the system powered down, the scientific community enters a completely new phase.' Markus Zerlauth

As Jean-Philippe Tock noted, this project is massive and complex from both a logistical and engineering standpoint: 'it is a large-scale and complex logistical and engineering project.'

The upgraded collider is expected to produce around 380 million Higgs bosons-a massive leap from the 55 million generated so far. Once operational, the enhanced machine will run for roughly a decade, with the final version of the accelerator expected to operate until the end of its service life in the 2040s. 'This is a unique opportunity to explore the Universe at a new level,' emphasized Mark Thomson.

This upgrade represents a pivotal step in the evolution of particle physics, offering unprecedented chances to probe the fundamental workings of the cosmos. The increased sensitivity and collision frequency will generate fresh data that could fundamentally alter our understanding of the Universe's most basic principles.

Preparations for the 2030 launch of the modernized collider will require the coordinated efforts of thousands of specialists, underscoring the project's immense scale and its significance for the global scientific community. It may well lay the groundwork for transformative discoveries in physics and related fields.