News – AU – A tiny, wobbling muon has shaken particle physics to the core


The results of one of the most anticipated experiments in particle physics are here and could make the wildest of researchers dreams come true: Perhaps they could break physics as we know it

Evidence from the Fermi National Accelerator Laboratory near Chicago appears to suggest a tiny subatomic particle known as a muon that wobbles far more than the theory predicts. The best explanation, according to physicists, is that the muon is caused by types of Matter and energy are moved that are completely unknown to physics

If the results are correct, the discovery represents a breakthrough in particle physics such as has not been seen in 50 years when the predominant theory developed to explain subatomic particles, the tiny wobble of the muon, produced by the interaction of its intrinsic Magnetic field or magnetic moment generated with an external magnetic field could shake the very foundations of science

“Today is an extraordinary day that not only we, but the entire international physics community has been waiting for a long time,” said Graziano Venanzoni, co-spokesman for the Muon g-2 experiment and physicist at the Italian National Institute for Nuclear Physics in One Opinion

Sometimes known as “fat electrons,” muons are similar to their better-known cousins, but are 200 times heavier and radioactively unstable – decay into electrons in just millionths of a second and tiny, ghostly, no-charge particles known as neutrinos have muons too Property called spin that, when combined with their charge, makes them act like tiny magnets, causing them to wobble like tiny gyroscopes when they fall into a magnetic field

Today’s results, from an experiment in which physicists whipped muons around a superconducting magnet ring, seem to show that the muon wobbles far more than it should be. The only explanation, according to the study’s scientists, is the existence of particles not yet explained by the equations that explain all subatomic particles, the so-called Standard Model, which has remained unchanged since the mid-1970s.These exotic particles and the energies associated with them, so the idea, would be attached to the Poke and pull muons in the ring

The Fermilab researchers are relatively confident that what they saw (the extra wobble) was a real phenomenon and not a statistical coincidence Sigma threshold is where particle physicists explain an important discovery (a 5 sigma result would mean there is a 1 in 3.5 million chance that it happened by chance)

“This quantity we measure reflects the interactions of the muon with everything else in the universe, however, if the theorists compute the same quantity using all known forces and particles in the Standard Model, we do not get the same answer:” Renee Fatemi, Physicist at the University of Kentucky and simulation manager for the Muon g-2 experiment, said in a statement, “This is strong evidence that the muon is sensitive to something that is not in our best theory”

A competition calculation carried out by a separate group and carried out on Wednesday (7 April) was published in the journal Nature, however, the wobble could deprive this team of its meaning, according to the calculations of this team, which give a much larger value to the most uncertain term in the equation that predicts the rocking motion of the muon, the experimental results are completely in agreement with the Predictions about twenty years of particle hunting could all have been in vain

“If our calculations are correct and the new measurements don’t change history, apparently we don’t need new physics to explain the muon’s magnetic moment – it follows the rules of the Standard Model,” Zoltan Fodor, A Professor of Physics at Penn State and a leader of the research team that published the Nature paper said in a statement

But Fodor added that given that his group’s prediction was based on a completely different calculation with very different assumptions, his group’s findings were far from settled. “Our result means that there is tension between the previous ones theoretical results and our new ones. This discrepancy should be understood, “he said.” In addition, the new experimental results could come close to the old or previous theoretical calculations. We have many years of excitement ahead of us “

Essentially, physicists cannot conclusively say whether brand new particles will pull on their muons until they can agree exactly how the 17 existing standard model particles will also interact with muons. Until a theory wins, physics remains in equilibrium

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Physics, Fermilab, muon g-2, muon, physics beyond the Standard Model, particles, research

News – AU – A tiny, wobbling muon has shaken particle physics to the core