Structure Of The Eta Meson - Proceedings Of The International Workshop

ISBN: 9789810231590 出版年：1997 页码：174 Jose Luis Goity Matthias Burkardt World Scientific Publishing Company

This volume focuses on theoretical and experimental aspects of the η′ meson. The η′ pseudoscalar meson plays a special role in QCD as its mass is largely due to the explicit breaking of the axial U(1) symmetry by the quantum fluctuations of QCD (axial anomaly). The precise mechanism that gives the η′ its large mass is not yet fully understood, and also the current knowledge of the η′ specific properties is far from complete. This volume addresses both theoretical and experimental open issues of relevance in our understanding of this peculiar meson.