Observation of orbitally excited Bc+ states
At a CERN seminar today, the LHCb collaboration announced the first observation of orbitally excited Bc+ states, which are composed of a beauty-charm quark-antiquark pair. Within the expected mass range…
The first dedicated Z-boson mass measurement at the LHC
Today, the LHCb collaboration submitted for publication a paper reporting the first dedicated Z-boson mass measurement at the LHC using Z→μ+μ− decays. The data were recorded in 2016 and correspond…