Physicists give the name “prompt photons” to those that are produced by two particles smashing together — hard collisions — as contrasted with those resulting from the decay of other particles. The Tevatron produced prompt photons by the hard collisions between protons and antiprotons.
CDF scientists developed a number of techniques to disentangle events containing real W bosons from events in which its presence was mimicked by other processes.
CDF has updated their indirect determination of the W boson mass using all of their Tevatron Run II data samples.
CDF investigates forward-backward asymmetries in the production of bottom quark-antiquark pairs.
CDF has completed its last measurement of top quark forward-backward asymmetry, using the full Tevatron Run II data set, in the scenario where both the top quark and antiquark decay leptonically.
CDF searches for a Higgs boson of the type not predicted by the Standard Model.
CDF observes approximately 740 events in the muon decay mode. CDF looked for a signature of three muons, the mass of two oppositely charged muons being consistent with that of the J/ψ particle.
CDF physicists performed a search for events with a vector boson and a charmed D meson to make certain that their picture of them was accurate.
Estimated and observed distribution for our algorithm, which is used to identify WW events. High values of NN indicate a more signal-like event. In a recent measurement, the CDF experiment studied in detail events with two massive W vector bosons produced with associated jets (a spray of particles resulting from an energetic quark or gluon). These types of events are widely considered to be a window for looking for physics beyond the Standard Model. Each W can decay into a…
This plot shows the forward-backward asymmetry in bottom quark production at the Tevatron as a function of the mass of the bottom-antibottom system compared to predictions with and without axigluons. When a top-antitop quark pair is produced at the Tevatron, does the top quark go more often in the direction of the collision beam’s proton or antiproton? Early measures of the forward-backward asymmetry — the difference in direction between an outgoing pair of particles relative to the incoming colliding particles…