One of the most sensitive measurement channels involves Higgs boson decays via two Z bosons to four leptons.
The Muon g-2 experiment at Fermilab has begun its three-year-long campaign to measure the magnetic moment of the muon with unprecedented precision.
“I think we have it, no?” was the question posed in the CERN auditorium on 4 July 2012 by Rolf Heuer, CERN’s Director-General at the time.
The top-Higgs coupling is crucial for the production of Higgs bosons at the LHC.
Observing the Higgs via its decays into pairs of fermions further tests the predictions of the Standard Model.
The first analysis concerns the polarisation of W bosons produced in the decays of top-quark–antiquark pairs.
A precise measurement of the mass of the W boson, which was discovered at CERN in 1983, is vital because it is closely related to the masses of the top quark and the Higgs boson.
Heisenberg and his student Euler realised that photons may scatter off of each other through a quantum-loop process involving virtual electron and positron pairs.
It is quite improbable for two colliding protons to produce a W or Z electroweak gauge boson. Producing two or more W or Z bosons in the same collision is even less likely.
The two heaviest quarks, the bottom and top, are particularly interesting because they have the largest couplings to the Higgs boson.