325 citations · 6k across the 224 of their papers we have counts for
13 papers · 1 filter
The Polyakov loop in various representations in the confined phase of QCD
E. Megias, E. Ruiz Arriola, L. L. Salcedo
We analyze the expectation value of the Polyakov loop in the fundamental and higher representations in the confined phase of QCD. We discuss a hadronic like representation, and fin…
Implicit vs Explicit renormalization of the force
Enrique Ruiz Arriola, Sergio Szpigel, Varese Salvador Timoteo
We use an S-wave toy model for the two-nucleon system to show that the implicit renormalization of a contact theory matches the explicit renormalization through a flow equation whi…
Partial Wave Analysis of Chiral NN Interactions
R. Navarro Perez, J. E. Amaro, E. Ruiz Arriola
We analyze chiral interactions to N2LO on the light of proton-proton and neutron-proton scattering data published from 1950 till 2013 and discuss conditions under which the chiral…
Polyakov loop, Hadron Resonance Gas Model and Thermodynamics of QCD
E. Megias, E. Ruiz Arriola, L. L. Salcedo
We summarize recent results on the hadron resonance gas description of QCD. In particular, we apply this approach to describe the equation of state and the vacuum expectation value…
Coarse grained Potential analysis of neutron-proton and proton-proton scattering below pion production threshold
R. Navarro Perez, J. E. Amaro, E. Ruiz Arriola
Using the delta-shell representation we present a successful fit to neutron-proton and proton-proton scattering data below pion production threshold. A detailed overview of the the…
Fixed points of the Similarity Renormalization Group and the Nuclear Many-Body Problem
E. Ruiz Arriola, S. Szpigel, V. S. Timoteo
The Similarity Renormalization Group reduces the off-shellness by driving the evolved interaction towards a diagonal band. We analyze the infrared limit and the corresponding on-sh…
Coarse grained NN potential with Chiral Two Pion Exchange
R. Navarro Perez, J. E. Amaro, E. Ruiz Arriola
We determine the chiral constants of the Nucleon-Nucleon Two Pion Exchange potential deduced from Chiral Perturbation Theory. By using a coarse grained representation of the short…
Constituent Quarks and Gluons, Polyakov loop and the Hadron Resonance Gas Model
E. Megias, E. Ruiz Arriola, L. L. Salcedo
Based on first principle QCD arguments, it has been argued in arXiv:1204.2424[hep-ph] that the vacuum expectation value of the Polyakov loop can be represented in the hadron resona…
Implicit vs Explicit Renormalization and Effective Interactions
E. Ruiz Arriola, S. Szpigel, V. S. Timoteo
Effective interactions can be obtained from a renormalization group analysis in two complementary ways. One can either explicitly integrate out higher energy modes or impose given…
Reply to "Comment on 'Systematics of radial and angular-momentum Regge trajectories of light non-strange qqbar-states' "
Pere Masjuan, Enrique Ruiz Arriola, Wojciech Broniowski
In his Comment, D. Bugg argues against our usage of the PDG collection of light non-strange states together with the half-width rule to analyze the linearity of radial and angular-…
Partial Wave Analysis of Nucleon-Nucleon Scattering below pion production threshold
R. Navarro Perez, J. E. Amaro, E. Ruiz Arriola
We undertake a simultaneous partial wave analysis to proton-proton and neutron-proton scattering data below pion production threshold up to LAB energies of 350MeV. We represent the…
Nuclear Symmetries of the similarity renormalization group for nuclear forces
E. Ruiz Arriola, V. S. Timoteo, S. Szpigel
We review the role played by long-distance symmetries within the context of the similarity renormalization group approach. This is based on phase-shift-preserving continuous unitar…
Nucleon-Nucleon Chiral Two Pion Exchange potential vs Coarse grained interactions
Rodrigo Navarro Perez, J. E. Amaro, E. Ruiz Arriola
We analyse the interplay between nucleon-nucleon potentials deduced from chiral perturbation theory and a coarse grained representation of the short distance interactions by delta-…