The general propagator for S-wave threshold states
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DOI: 10.1007/jhep01(2025)102
Abstract: We demonstrate that the propagator, derived from an Effective Field Theory (EFT) that incorporates Weinberg’s compositeness theorem, provides a more general formula for describing S-wave near-threshold states. By fitting the lineshape using this propagator, we… read more here.
Keywords: propagator; propagator wave; threshold states; general propagator ... See more keywords