An experiment in the US revealed the moment lead ions transformed into gold in an instant, surprising the scientific community.
Báo Khoa học và Đời sống•07/08/2025
Scientists have recently announced that it is possible to turn lead into gold. They discovered that a single lead track can produce gold nuclei with a cross-section equivalent to the speed of hadron collisions when performed at the Large Hadron Collider (LHC) located under the French-Swiss border. Photo: CERN. The Large Hadron Collider (LHC) is 27 km in circumference and works by launching and colliding small particles together, allowing experts to observe and analyse their structure as well as the consequences of the collisions. Photo: CERN.
“Normally in accelerator experiments, we collide particles to create a lot of debris,” said Daniel Tapia Takaki, a physics professor at the University of Kansas and leader of the ALICE experiment. “But in ultra-peripheral collisions (UPCs), we are interested in what happens when particles don’t collide. These are near misses. The ions pass close enough to interact but don’t collide.” Photo: University of Seville. According to Professor Daniel, the ions in the LHC are very heavy with many protons in their nuclei and can create strong electric fields. Each ion will shoot a stream of high-energy photons at the other ion, which can knock out one, two, three, or even four protons. Photo: Liudmila Chernetska via Getty Images). If it loses three protons, a lead-208 nucleus will temporarily become a gold-205 nucleus, but it will only remain in this state for a very short time. Image: Anna Pantelia/CERN.
The results of the research and analysis of the experts show that each time the LHC creates a hadron collision, the lead ion will quietly turn into gold and then decay. The research team also identified different proton channels with results that matched or exceeded theoretical predictions. Photo: Maximilien Brice/CERN. Removing three protons turns lead into gold, but removing one proton can also produce thallium – a key element in experiments. The findings not only have implications for understanding nuclear physics, but could also influence the design of future colliders. Photo: Deposit Photos. The team plans to extend the analysis to four and five proton emissions, as well as develop a dedicated trigger for hyperperipheral collisions. If successful, physicists could observe the process of turning lead into gold almost instantaneously, opening up new opportunities in nuclear physics research. Photo: Getty Images.
However, the researchers also noted that this discovery does not mean that it is possible to turn lead into gold because the transformation process only takes a short time while the cost of implementation is not cheap. Photo: CERN 2015. Readers are invited to watch the video : Behind the success of scientists. Source: VTV24.
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