Axial-vector symmetry breaking and τ mes
✍
Bing An Li
📂
Article
📅
1999
🏛
Elsevier Science
🌐
English
⚖ 413 KB
Effective chiral theory of mesons beyond ChPT has been applied to study 7 --+ 4Try, y3pi~,. Theoretical results agree with data. A new axial-vector symmetry breaking is revealed from this theory. The mass gap between p and a~ mesons originates in this symmetry breaking. W and Z bosons gain mass from