Top quark physics experimental results at the LHC: Cross section and mass measurements with the CMS experiment

摘要

The top quark， the heaviest known elementary particle discovered at the Fermilab Tevatron almost exactly twenty years ago, has taken a central role in the study of fundamental interactions. Its large mass suggests that it may play a special role in Nature. With approximately 25fb~(-1) of data collected by the CMS experiments at the Large Hadron Collider in Run 1 (2010-2012),top quark physics is at a turning point from first studies to precision measurements with sensitivity to new physics processes. This report summarizes the latest experimental results on top quark production cross section and mass measurements.