The W boson, a fundamental particle that carries the charged weak force, is the subject of a new precision measurement of its mass by the ATLAS experiment at CERN. The preliminary result, reported in a new conference note presented today at the Rencontres de Moriond conference, is based on a reanalysis of... read full story
"This updated result from ATLAS provides a stringent test, and confirms the consistency of our theoretical understanding of electroweak interactions."