top quark

Earlier today the CMS paper titled “Observation of ttH Production” was accepted for publication by Physical Review Letters. In this article, the CMS collaboration presented the first observation of the coupling between the Higgs boson and the top quark. The strength of this coupling as measured by CMS is consistent with the Standard Model expectation. This observation connects for the first time directly the two heaviest elementary particles of the Standard Model: the top quark, which was discovered in 1995… More »

The hunt for the top quark at Fermilab was heating up in 1994 when scientist Mike Albrow and his colleagues on the CDF experiment felt they were close to cornering the last, undiscovered member of the quark family. Albrow tells the story leading to the discovery of the particle by CDF and DZero.

You’ve got your pole masses, and you’ve got your MC masses. DZero recently measured the top quark’s pole mass. Read on to learn the difference.

Bigger is better

One of the first CMS papers for publication using data recorded in 2015 was on the production rate of top quarks. This is a breathtaking achievement.