Mark Thomson, a leading expert in particle physics, has just been appointed as the director general of CERN, the world-renowned nuclear physics laboratory that houses the massive Large Hadron Collider (LHC). The LHC, which accelerates protons to nearly light speed and recreates conditions that existed microseconds after the Big Bang, has made several groundbreaking discoveries, including the detection of the Higgs boson. However, Thomson's first act as director general will be to turn off the machine for five years to allow for much-needed engineering work.
The high-luminosity LHC upgrade, which is currently under way, aims to increase the number of collisions by tenfold and make more precise measurements of particles and their interactions. While this project holds great promise for scientists, it also raises questions about CERN's future plans. The LHC is expected to reach the end of its life around 2041, and the organization must decide whether to replace it with a new machine called the Future Circular Collider (FCC).
The FCC would be significantly larger than the LHC, requiring a new 91km circular tunnel to be built. While this project has significant engineering ambitions, it also poses wider challenges, including funding and debate over its scientific merits. With no guarantee that the FCC will answer any big questions in physics, Thomson's role will be more complex.
Thomson's appointment as director general comes at a time when CERN is under scrutiny from other countries, such as the US and China, which are also investing heavily in advanced colliders. While CERN remains the world leader in particle physics, its preeminence is not guaranteed unless it can deliver significant breakthroughs.
Despite these challenges, Thomson remains optimistic about CERN's future. "We've not got to the point where we have stopped making discoveries," he says. "Our goal is to understand the universe at its most fundamental level." The next five years will be crucial for CERN and Thomson, as he navigates the complexities of scientific research, engineering, and international politics to secure CERN's place in the world of physics.
The high-luminosity LHC upgrade, which is currently under way, aims to increase the number of collisions by tenfold and make more precise measurements of particles and their interactions. While this project holds great promise for scientists, it also raises questions about CERN's future plans. The LHC is expected to reach the end of its life around 2041, and the organization must decide whether to replace it with a new machine called the Future Circular Collider (FCC).
The FCC would be significantly larger than the LHC, requiring a new 91km circular tunnel to be built. While this project has significant engineering ambitions, it also poses wider challenges, including funding and debate over its scientific merits. With no guarantee that the FCC will answer any big questions in physics, Thomson's role will be more complex.
Thomson's appointment as director general comes at a time when CERN is under scrutiny from other countries, such as the US and China, which are also investing heavily in advanced colliders. While CERN remains the world leader in particle physics, its preeminence is not guaranteed unless it can deliver significant breakthroughs.
Despite these challenges, Thomson remains optimistic about CERN's future. "We've not got to the point where we have stopped making discoveries," he says. "Our goal is to understand the universe at its most fundamental level." The next five years will be crucial for CERN and Thomson, as he navigates the complexities of scientific research, engineering, and international politics to secure CERN's place in the world of physics.