NN Scattering and Nuclear Uncertainties Ruiz Arriola, Enrique Amaro Soriano, José Enrique Navarro Pérez, Rodrigo Nucleon-nucleon interaction Scattering data Uncertainty quantification Nuclear binding Effective interactions Statistical analysis This work was supported by the Spanish MINECO and European FEDER funds (grant FIS2017-85053-C2-1-P) and Junta de Andalucía (grant FQM-225). We thank Ignacio Ruiz Simó, James Vary, Pieter Maris, Eduardo Garrido, Andreas Nogga, Rocco Schiavilla, Maria Piarulli, Pedro Fernández Soler, Jacobo Ruiz de Elvira, Varese Salvador Timoteo, and Sergio Szpigel for collaboration on different issues discussed in this paper. Ab initio calculations in Nuclear physics for atomic nuclei require a specific knowledge of the interactions among their constituents, protons and neutrons. In particular, NN interactions can be constrained down to scale resolutions of Δr ~ 0.6 fm from the study of phase shifts below the pion production threshold. However, this allows for ambiguities and uncertainties which have an impact on finite nuclei, nuclear- and neutron-matter properties. On the other hand the nuclear many body problem is intrinsically difficult and the computational cost increases with numerical precision and number of nucleons. However, it is unclear what the physical precision should be for these calculations. In this contribution we review much of the work done in Granada to encompass both the uncertainties stemming from the NN scattering database in light nuclei such as triton and alpha particle and the numerical precision required by the solution method. 2021-05-14T11:09:59Z 2021-05-14T11:09:59Z 2020-01-28 info:eu-repo/semantics/article Ruiz Arriola E, Amaro JE and Navarro Pérez R (2020) NN Scattering and Nuclear Uncertainties. Front. Phys. 8:1. doi: [10.3389/fphy.2020.00001] http://hdl.handle.net/10481/68530 10.3389/fphy.2020.00001 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España Frontiers Research Foundation