Category CMS

A W Boson Mass Hackathon at MIT

The value of the W boson mass has recently received a lot of attention because CDF—the PPC is also a part of CDF—has published a very precise measurement which does not agree with what the standard model predicts. While it…

LHC Completes Data Taking for 2022

The large hadron collider (LHC) has completed its data taking on November 28, 2022 about two weeks earlier than originally planned earlier. Rising energy costs mostly due to the conflict in Ukraine has forced CERN to make adjustments. According to…

Looking at the Invisible Z

Turning the monojet most stubborn background into a precision measurement A PPC spotlight on JHEP 05, 205 (2021) — CMS, “Measurement of the Z boson differential production cross section using its invisible decay mode (Z → νν̄) in proton-proton collisions…

Everybody else’s background

How a “boring” W⁺W⁻ cross section measurement quietly became one of the sharpest tests of the standard model, and then, almost as an afterthought, set the tightest limits on dimension-6 operators from this final state A PPC spotlight on the…