ATLAS Collaboration/CERN
In science, it is often said that extraordinary claims require extraordinary evidence. Recent measurements of the mass of elementary particles known as W bosons provide a useful case study as to why. Last year, physicists at Fermilab caused controversy when they reported his W boson mass measurement, which deviated significantly from the theoretical predictions of the so-called Standard Model of particle physics. This is an intriguing hint of new physics. Others cautioned because the measurements were inconsistent with previous measurements.
That caution seems justified. His ATLAS collaboration at CERN’s Large Hadron Collider (LHC) presents a unique new and improved analysis of his W boson data whose mass measurements are still consistent with the standard model. I discovered that Note: These are provisional results. But his 2022 measurements from Fermilab are less likely to be correct.
“W-mass measurement is one of the most difficult precision measurements to be performed on the Hadron Collider,” said ATLAS spokesperson Andreas Hoecker. “Very accurate calibration of the measured particle energies and momentums as well as careful evaluation and good control of modeling uncertainties are required. This updated result from ATLAS provides a rigorous test. , confirms the consistency of the theoretical understanding of electroweak interactions.”
As we reported previously, the Standard Model explains how the basic building blocks and matter of the universe evolved. These blocks can be divided into his two basic families of fermions and bosons. Fermions make up all matter in the universe, including leptons and quarks. Leptons are particles, such as electrons and neutrinos, that do not participate in holding the nucleus together. Their job is to use weak nuclear forces to help transform them into other particles and chemical elements through nuclear decay. Quarks make up the atomic nucleus.
Bosons are bonds that bind other particles together. Bosons move from one particle to another and this creates a force. There are four force-related “gauge bosons”. Gluons are associated with strong nuclear forces and “glue” the nuclei together. Photons carry electromagnetic forces, which produce light. The W and Z bosons carry weak nuclear forces and induce different types of nuclear decay. And then there is the Higgs boson, which is a manifestation of the Higgs field. The Higgs field is an invisible entity that permeates the universe. The interaction between the Higgs field and the particles helps give the particles mass, and particles that interact more strongly have more mass.
