The current theory of physics has received evidence of a standard model and an event that could open a window into the ‘new physics’. The result has been announced by the Fermi National Accelerator Laboratory (Fermilab) in Batavia (Chicago), which has obtained international collaboration ‘Moon G-2’ with the Italian National Institute of Atomic Physics (INFN). The result, published in physics review letters, is “the most convincing sign of the possible existence of new physics,” Graziano Venanzoni of Pizza’s Infn division told ANSA.
“Today is an extraordinary and long-awaited day for the entire international particle physics community,” said Venanzoni, co-spokeswoman for the experiment with Fermilab’s Chris Polly.
The Muon g-2 collaboration, with 200 researchers from 35 companies in 7 countries, showed that elementary particles called muons act unpredictably by a standard model. This experiment measures the magnetic properties of elementary particles such as electrons, but with a mass about 200 times greater, cosmic rays are formed naturally when they come in contact with the Earth’s atmosphere.
The result was another American particle accelerator 20 years ago that confirmed measurements obtained at the Brookhaven National Laboratory near New York. The Brookhaven measurement showed a significant difference in the behavior of the mions compared to the standard model.
“Our experiment not only confirmed the Brookhaven result – said Venonssoni – but combined with the previous one it strengthened the evidence for the possible existence of new physics.” By combining the new measurement of the Muon g-2 experiment with those obtained in Brookhaven, a gap of 4.2 standard deviations was reached, which is a value close to the 5 standard deviations required to standardize the discovery.
Unlike what happens at CERN’s Lhc acceleration when new particles are produced by collisions between protons, new particles in Fermilab are searched indirectly in a quantum vacuum, i.e. the effects they have on the properties of known particles. In particular, we were able to see what was happening to the Mune property called the G-2, which was different from what was predicted by the standard model.
Conflict may be due to particles or forces of a new nature. This is “strong evidence that our best theoretical model of the subcontinent is incomplete” for Fermilab experts. Now collects and analyzes new data to further confirm the results achieved.
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