418 citations · 567 across the 20 of their papers we have counts for
21 papers · 1 filter
Poles in scattering from forward dispersion relations and revised total cross-section data
José Ramón Peláez, Pablo Rabán, Jacobo Ruiz de Elvira
We present a model-independent calculation of forward dispersion relations and their analytic continuation to the complex plane, using a revised set of total cross-s…
The unintuitive SU(3) flavor and chiral limits of hadron resonances
José Ramón Peláez, Pablo Rabán, Jacobo Ruiz de Elvira
Contrary to naive expectations, poles used to define hadron resonances rigorously in the physical world may not evolve continuously to become degenerate in the SU(3) and chiral…
Dispersive determination of resonances from scattering data
José Ramón Peláez, Pablo Rabán, Jacobo Ruiz de Elvira
We provide a precise, model- and parametrization-independent dispersive determination of the , , , , , , , and…
Nucleon mass: trace anomaly and -terms
Martin Hoferichter, Jacobo Ruiz de Elvira
We give a pedagogical introduction to the origin of the mass of the nucleon. We first review the trace anomaly of the energy-momentum tensor, which generates most of the nucleon ma…
Kaon Physics: A Cornerstone for Future Discoveries
Jason Aebischer, Atakan Tugberk Akmete, Riccardo Aliberti +153
The kaon physics programme, long heralded as a cutting-edge frontier by the European Strategy for Particle Physics, continues to stand at the intersection of discovery and innovati…
Thermal hadron resonances and Ward identities: results for the QCD phase diagram
Angel Gómez Nicola, Jacobo Ruiz de Elvira, Andrea Vioque-Rodríguez
We review recent work regarding the role of light scalar resonances at finite temperature for chiral symmetry and restoration. The results obtained are based on unitarized…
Radiative corrections to the forward-backward asymmetry in
Gilberto Colangelo, Martin Hoferichter, Joachim Monnard +1
We present a calculation of the -odd radiative corrections to in a dispersive formalism, concentrating on the leading pion-pole contribution in the virtual bo…
Thermal hadron resonances in chiral and restoration
Angel Gómez Nicola, Jacobo Ruiz de Elvira, Andrea Vioque-Rodríguez
We review recent work on thermal resonances and their connection with chiral symmetry and restoration within the QCD phase diagram. In particular, the and $K_0^…
The role of strangeness in chiral and restoration
Angel Gómez Nicola, Jacobo Ruiz de Elvira, Andrea Vioque-Rodríguez +1
We use recently derived Ward identities and lattice data for the light- and strange-quark condensates to reconstruct the scalar and pseudoscalar susceptibilities (, )…
Patterns and partners within the QCD phase diagram including strangeness
Angel Gómez Nicola, Jacobo Ruiz de Elvira, Andrea Vioque-Rodríguez
We review the current situation of the pattern of chiral symmetry restoration. In particular, we analyze partner degeneration for and symmetries within the context…
Global parameterization of scattering up to 2 GeV
J. R. Pelaez, A. Rodas, J. Ruiz de Elvira
We provide global parameterizations of scattering and partial waves up to roughly 2 GeV for phenomenological use. These parameterizations describe the output and unce…
The QCD topological charge and its thermal dependence: the role of the
Angel Gómez Nicola, Jacobo Ruiz De Elvira, Andrea Vioque-Rodríguez
We analyze the contribution of the meson in the first two non-trivial moments of the QCD topological charge distribution, namely, the topological susceptibility and the f…
Coarse graining hadronic scattering
Enrique Ruiz Arriola, Jacobo Ruiz de Elvira
We show that it makes sense to coarse grain hadronic interactions such as and reactions following previous work on NN scattering. Moreover, if the interaction is taken to…
Chiral and restoration: Ward Identities and effective theories
A. Gómez Nicola, J. Ruiz de Elvira, A. Vioque-Rodríguez +1
We discuss our recent results regarding chiral and restoration, both from the formal point of view of QCD Ward Identities (WI) and from an Effective Theory analysis provid…
Coarse graining scattering
Jacobo Ruiz de Elvira, Enrique Ruiz Arriola
We carry out an analysis of scattering in the , and channels in configuration space up to a maximal center-of-mass energy GeV. We separate the…
Workshop on Pion-Kaon Interactions (PKI2018) Mini-Proceedings. Editors: M. Amaryan, Ulf-G. Meißner, C. Meyer, J. Ritman, and I. Strakovsky
M. Amaryan, M. Baalouch, G. Colangelo +21
This volume is a short summary of talks given at the PKI2018 Workshop organized to discuss current status and future prospects of pi-K interactions. The precise data on pi-K intera…
Properties and composition of the resonance
J. R. Pelaez, J. Nebreda, G. Ríos +1
In this talk we review our recent developments on the understanding of the nature of the f_0(500) resonance---or sigma meson---coming from the N_c expansion, dispersion relations w…
Scalar susceptibilities and four-quark condensates in the meson gas within Chiral Perturbation Theory
A. Gomez Nicola, J. R. Pelaez, J. Ruiz de Elvira
We analyze the properties of four-quark condensates and scalar susceptibilities in the meson gas, within finite temperature Chiral Perturbation Theory (ChPT). The breaking of the f…
Precise dispersive determination of the f0(600) and f0(980) resonances
Jose R. Pelaez, R. Garcia Martin, R. Kaminski +1
We review our recent dispersive and model independent determination of the lightest two scalars, in terms of poles and residues - or mass, width and coupling- by means of once and…
Recent developments in U(3) ChPT: meson-meson scattering and finite energy sum rules
Zhi-Hui Guo, J. A. Oller, J. Ruiz de Elvira
We discuss the meson-meson scattering and finite energy sum rule(FESR), based on the one-loop calculation within U(3) chiral perturbation theory. First we obtain the pertinent reso…
The pion-pion scattering amplitude. IV: Improved analysis with once subtracted Roy-like equations up to 1100 MeV
R. García- Martín, R. Kamiński, J. R. Peláez +2
We improve our description of pion-pion scattering data by imposing additional requirements to our previous fits, in the form of once-subtracted Roy-like equations, while extending…