Minimally nonlocal nucleon-nucleon potentials with chiral two-pion exchange including resonances

M Piarulli, L Girlanda, R Schiavilla, RN Pérez… - Physical Review C, 2015 - APS
We construct a coordinate-space chiral potential, including Δ-isobar intermediate states in its
two-pion-exchange component up to order Q 3 (Q denotes generically the low momentum …

[HTML][HTML] Two-body double pole and three-body bound states: Physical and unphysical quark masses

VS Timóteo, U van Kolck - Physics Letters B, 2024 - Elsevier
We solve the Faddeev bound-state equations for three particles with simple two-body
nonlocal, separable potentials that yield a scattering length twice as large as a positive …

Uncertainty quantification of effective nuclear interactions

RN Pérez, JE Amaro, ER Arriola - International Journal of Modern …, 2016 - World Scientific
We give a brief review on the development of phenomenological NN interactions and the
corresponding quantification of statistical uncertainties. We look into the uncertainty of …

Low scale saturation of effective NN interactions and their symmetries

E Ruiz Arriola - Symmetry, 2016 - mdpi.com
The Skyrme force parameters can be uniquely determined by coarse graining the Nucleon-
Nucleon (NN) interactions at a characteristic momentum scale. We show how exact V lowk …

Computational approaches for three-nucleon systems

VS Timoteo - Annals of Physics, 2021 - Elsevier
We revisit the three-nucleon system with two kinds of nucleon–nucleon interactions:
separable potentials and chiral forces, showing the computational aspects in detail. We start …

Fixed points of the SRG evolution and the on-shell limit of the nuclear force

ER Arriola, S Szpigel, VS Timóteo - Annals of Physics, 2016 - Elsevier
We study the infrared limit of the similarity renormalization group (SRG) using a simple toy
model for the nuclear force aiming to investigate the fixed points of the SRG evolution with …

Constraining gravity with hadron physics: neutron stars, modified gravity and gravitational waves

FJ Llanes-Estrada - EPJ Web of Conferences, 2017 - epj-conferences.org
The finding of Gravitational Waves (GW) by the aLIGO scientific and VIRGO collaborations
opens opportunities to better test and understand strong interactions, both nuclear-hadronic …

Block-diagonal similarity renormalization group and effective nucleon-nucleon interactions

S Szpigel, VS Timóteo, ER Arriola - Journal of Physics …, 2016 - iopscience.iop.org
We apply the block-diagonal similarity renormalization group to a simple toy-model for the
nucleon-nucleon (NN) interaction in the 1 S 0 channel, aiming to analyze the …

On-shell transition of SRG and nuclear systems

ER Arriola, S Szpigel, VS Timoteo - Annals of Physics, 2021 - Elsevier
We make variational estimates for the binding energies of 2 H, 3 H, 4 He, 16 O, 40 Ca,
showing their running with the Similarity Renormalization Group (SRG) cutoff towards the …

Phase transition in the SRG flow of nuclear interactions

VS Timoteo, E Ruiz Arriola, S Szpigel - Few-body systems, 2017 - Springer
We use a chiral interaction at N3LO in the^ 1S_0 1 S 0 channel of the nucleon–nucleon
interaction in order to investigate the on-shell transition along the similarity renormalization …