Abstract.
We outline a separable matrix ansatz for the potentials in effective field theories of non-relativistic two-body systems with short-range interactions. We use this ansatz to construct new fixed points of the renormalisation-group equation for these potentials. New fixed points indicate a much richer structure than previously recognized in the RG flows of simple short-range potentials.
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Communicated by R. Alkofer
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Birse, M.C., Epelbaum, E. & Gegelia, J. New fixed points of the renormalisation group for two-body scattering. Eur. Phys. J. A 52, 26 (2016). https://doi.org/10.1140/epja/i2016-16026-1
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DOI: https://doi.org/10.1140/epja/i2016-16026-1