Since the Higgs discovery, a total of almost 30,000 Higgs bosons have been observed with the Atlas detector. “The results actually fit very well with theoretical predictions which became much more accurate over time.” We have observed how the Higgs boson interacts with the five heaviest known elementary particles, and have good hints for another two“, says Sandra Kortner, who leads a research group on LHC physics at the Max Planck Institute for Physics. “The exciting thing is that there is so much to be seen. The focus of the two long measurements at the LHC has been on the interactions of the Higgs with other particles in the Standard Model. Over the past decade, Atlas scientists have measured the particle's properties with high precision.
The detection of the Higgs boson was just the beginning for further, intensive studies. Theoretical physicist Giulia Zanderighi takes a look at fundamental questions related to the Higgs boson. Sandra Kortner is co-author of an article by the Atlas experiment reporting on the latest results of the Higgs boson property measurements. Two researchers at the Max Planck Institute for Physics have contributed to articles in the current issue of Nature. The tenth anniversary of the discovery is an occasion for a scientific review of the past ten years and to look into the future. This particle is the manifestation of the Higgs quantum field which fills the universe like a syrup, "sticking" to the other particles as mass. With the Higgs boson, particle physics completed its Standard Model: Twelve elementary matter particles, four exchange particles and, as the keystone, the Higgs boson - the only particle without spin. Proton-proton collisions take place there, and physicists have successfully searched the debris for traces of the predicted Higgs particle. Predicted by the theorists Peter Higgs, Robert Brout and François Englert as early as the 1960s, it took almost 50 years until the appropriate "search engine" was ready: the particle accelerator LHC with the experiments Atlas and CMS. July 4, 2012, was all about the Higgs boson: The particle physics community rejoiced at its success, and there was hardly a newspaper or news program that did not report on the spectacular discovery.
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