SFU researchers to be part of historical international scientific effort

Simon Fraser University (SFU) researchers are playing a pivotal role in a groundbreaking international scientific initiative aimed at advancing our understanding of the universe. This effort centers on the Large Hadron Collider (LHC) at CERN, located on the border between France and Switzerland. The LHC, one of the most complex and powerful machines ever built, is currently undergoing a shutdown until 2030, during which time it will be upgraded to enhance its capabilities. Among the key contributions from Canadian researchers, SFU is tasked with manufacturing approximately 100 "petals" for the ATLAS experiment—a critical component of the LHC that played a central role in the 2012 discovery of the Higgs boson.

These petals are specialized detectors designed to capture and analyze the billions of subatomic particles generated during high-energy collisions within the LHC. Each petal is a highly sensitive piece of technology, requiring precision engineering and meticulous assembly. Over the next three years, SFU researchers will produce their share of these petals, contributing to the global effort to upgrade the LHC to its High Luminosity configuration. This enhanced version of the collider will significantly increase the number of collisions per second, thereby improving the likelihood of discovering new particles or phenomena that could revolutionize our understanding of the cosmos.

Professor Bernd Stelzer, a physicist at SFU, emphasizes the significance of this work. He notes that the search for new fundamental particles and interactions is akin to searching for "needles in a universe-sized haystack." However, the new detector components being developed in British Columbia are expected to dramatically improve the chances of uncovering something novel. Stelzer highlights that the LHC remains the only facility capable of studying the universe's most fundamental workings at the highest possible energies, making it essential for addressing unresolved questions in physics.

The collaboration involves researchers from multiple countries, with Canada contributing a substantial portion of the work. While SFU is not alone in this endeavor, it is considered a leader among Canadian institutions. The project includes teams from ten universities and research centers across the country, with a concentration of activity in the Vancouver area. Key partners include TRIUMF, Canada’s national particle accelerator center, where additional testing and refinement of the petals take place. Dr. Luise Poley, an adjunct professor at SFU and project scientist at TRIUMF, underscores the importance of the work, noting that the production of these petals marks a major milestone for the team. She explains that the increased luminosity of the upgraded LHC will allow for the detection of vastly more particles, potentially leading to insights into the nature of dark matter—still one of the greatest mysteries in modern physics.

The timeline for the project is tightly scheduled, as the LHC is currently offline and will remain so until early 2030. During this period, the existing infrastructure must be modified to accommodate the new components, including the petals. Researchers are under pressure to complete their tasks on time, as delays could impact the overall schedule for the collider’s restart. Despite the challenges, the anticipation of potential discoveries fuels the enthusiasm of the team. They are optimistic that their contributions may one day help unravel some of the deepest secrets of the universe, offering glimpses into forces and particles yet to be discovered.