Short-Range Effective Field Theory
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Related Articles from SNS
Three- and four-boson systems expanded around the unitarity limit: Application to $^4$He
Announce Type: cross Abstract: The three- and four-boson systems with a large scattering length and a short effective range in the two-body sector are studied in the framework of Short-Range Effective Field Theory. The starting point (leading order) of the EFT is taken to be the universal unitarity limit, where the two-body sector is parameter-free and only one three-body parameter enters. In this limit, physical systems manifests discrete scale invariance.