The time has come to wrap up the year! Ready? Let’s do it!
Above: CERN and CMS delegations received by Ms Ana Brnabić the Prime Minister of the Republic of Serbia. (Image: Serbian Ministry of Information and Telecommunications)
The ATLAS and CMS Experiments at CERN have just released a new measurement of the mass of the top quark. The new result combines 15 previous measurements to give the most precise determination of the top-quark mass to date.