Weinberg's Compositeness
arXiv:2209.08432 · doi:10.3390/sym14091884
Abstract
Nearly 60 years ago Weinberg suggested a criterion for particle "compositeness", which has acquired new life with the discovery of new, exotic hadrons. His idea resonates with model-based intuition. I discuss the role it plays in the context of another of Weinberg's creations, the model-independent framework of effective field theories.
19 pages, 1 figure. Prepared for Special Issue of Symmetry on Fundamental Aspects of Theoretical Physics -- Memorial Issue for S. Weinberg
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