
Nearly 60 years ago, Weinberg suggested a criterion for particle “compositeness”, which has acquired a 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.
[PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th], Weinberg, particle, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Nuclear Theory, resonances, exotic, FOS: Physical sciences, elementary fields, bound states, composite particles, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Nuclear Theory (nucl-th), bound state, High Energy Physics - Phenomenology, effective field theory, High Energy Physics - Phenomenology (hep-ph), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], hadron, composite
[PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th], Weinberg, particle, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Nuclear Theory, resonances, exotic, FOS: Physical sciences, elementary fields, bound states, composite particles, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Nuclear Theory (nucl-th), bound state, High Energy Physics - Phenomenology, effective field theory, High Energy Physics - Phenomenology (hep-ph), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], hadron, composite
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