Renormalization group and scattering-equivalent Hamiltonians on a coarse momentum grid Gómez Rocha, María Ruiz Arriola, Enrique Work supported by the Spanish MINECO and European FEDER funds (FIS2017-85053-C2-1-P) , Junta de Andalucia (grant FQM-225) and Juan de la Cierva-Incorporacion Programme, grant agreement No. IJCI-2017-31531. We consider the 7r7r-scattering problem in the context of the Kadyshevsky equation. In this scheme, we introduce a momentum grid and provide an isospectral definition of the phase shift based on the spectral shift of a Chebyshev angle. We address the problem of the unnatural high momentum tails present in the fitted interactions which reaches energies far beyond the maximal center-of-mass energy of root s = 1.4 GeV. It turns out that these tails can be integrated out by using a block-diagonal generator of the SRG. 2022-03-03T13:10:29Z 2022-03-03T13:10:29Z 2021 info:eu-repo/semantics/conferenceObject Gómez, M. & Ruiz, E. (2021). Renormalization group and scattering-equivalent Hamiltonians on a coarse momentum grid. Acta Physica Polonica B Proceedings Supplement, nº 1, vol. 14. DOI:[10.5506/APhysPolBSupp.14.101] http://hdl.handle.net/10481/73114 10.5506/APhysPolBSupp.14.101 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España Jagiellonian University