mesons

Physics

It is now possible to most accurately measure the lifetime of beautiful electrically neutral mesons.

Comparison of new ATLAS results for B0 lifetime with previous ATLAS results and results from the LHCb, CMS, D0, CDF, Belle II, BaBar, and Belle experiments. Credit: ATLAS/CERN Collaboration with ATLAS at the Large Hadron Collider (LHC) yields new high-precision measurements of the lifetime of electrically neutral beautiful (B0) mesons (hadrons consisting of a bottom antiquark and a down quark).…