Scientists working on a large adron -hollider (BAC) received the most accurate today measurements of the masses of the bosona higgs – fundamental – fundamental Particles in the standard model of particle physics. These data were obtained as a result of the analysis of a huge number of clashes of protons and were presented in July.
According to assumptions, over 9 million particles of Bozon Higgs were produced on the tank in four years. Despite this, only their insignificant share was observed. Nevertheless, the researchers of the international group working on the ATLAS experiment, one of the two BAC detectors, managed to get the most accurate measurements of the Higgs bosone mass.
Higgs boson, which arises from a quantum field penetrating the Universe and giving a mass to other fundamental particles, is the subject of intense studies. Unlike other particles of the standard model, scientists can only determine the mass of boson higgs experimentally. Exact measurements are extremely important for understanding the interactions between particles.
Researchers combined several measurements of mass based on the decay of particles with more accurate calibrations. So they got the value of the Higgs boson in 125.11 Gigaelectron-Volts (GEV) with an error of 0.11 GEV, reducing the indicator from 125.35 GEV and an accuracy of 0.12 percent recorded in 2019.
This result is the most accurate measurement of the mass of the Higgs bosone, reaching an accuracy of 0.09 percent. The team reduced the statistical and systematic uncertainty of the mass of Bozon Higgs, which previously left significant scope for interpretation of data.
Exact measurements help physicists check the predictions of the standard model of elementary particles physics and identify possible deviations. For example, last year the most accurate measurement of the mass of the bosone W revealed potential cracks in the standard model. The mass of the bosone W deviated from the seven standard deviations predicted, which was an unexpected result.
Deviations of this kind hint at the existence of new or unknown phenomena outside the standard model, which does not explain all aspects of the universe. However, accuracy does not mean correctness; Perhaps measurements are erroneous, not the theory.
As for the Higgs boson, despite the latest dimensions, physicists are still far from a complete understanding of its properties. Higgs boson does not always