Homing in on the Higgs boson interaction with the charm quark
— Read on phys.org/news/2022-03-homing-higgs-boson-interaction-charm.html

From main article… “ATLAS and CMS have previously observed the interactions of the Higgs boson with the heaviest  and leptons, of the third generation, which within the current measurement precision agree with the predictions from the Standard Model. And they have also obtained the first indications that the Higgs boson interacts with a muon, a lepton of the second generation. However, they have yet to observe it interacting with second-generation quarks. In two recent publications, ATLAS and CMS report analyses that place tight limits on the strength of the Higgs boson interaction with a charm quark, a second-generation quark.”