In this book, the author convinces that Sir Arthur Stanley Eddington had things a little bit wrong, as least as far as physics is concerned. He explores the theory of groups and Lie algebras and their representations to use group representations as labor-saving tools.

Howard Georgi is the co-inventor (with Sheldon Glashow) of the SU(5) theory. This extensively revised and updated edition of his classic text makes the theory of Lie groups accessible to graduate students, while offering a perspective on the way in which knowledge of such groups can provide an insight into the development of unified theories of strong, weak, and electromagnetic interactions.

A high-level, rigorous, and technical treatment of modern particle physics, this book was written by a well-known professor at Harvard University who conducts ongoing research programs in several areas of theoretical particle physics.
Introductory chapters examine Noether's theorem, the electron, and SU (3) quark models. Subsequent chapters explore weak decays of light hadrons, effective low-momentum field theories, the transformation law for baryons, mode counting, effective field theories, and the renormalization group. Two helpful indexes review dimensional regularization and background field gauge. In addition to its value as a text for advanced undergraduate and graduate students of physics, this volume also serves as a reference for professionals.