Juan Andrés Urrea-Niño
YOU?
Author Swipe
View article: Mixing of heavy and light quarks in charmonium and light mesons
Mixing of heavy and light quarks in charmonium and light mesons Open
View article: S-wave flavor-singlet meson mixing in QCD with light and charm quarks
S-wave flavor-singlet meson mixing in QCD with light and charm quarks Open
We investigate the mixing between flavor-singlet light meson and charmonium operators in the S-wave channels, i.e., pseudoscalar and vector channel, at two different pion masses. We measure statistically significant nonzero correlations be…
View article: Hybrid static potentials and gluelumps on $N_f=3+1$ ensembles
Hybrid static potentials and gluelumps on $N_f=3+1$ ensembles Open
QCD permits the existence of hybrid mesons that are made up of both quarks and gluons, including exotic states, i.e., quantum numbers prohibited for pure quark-antiquark states, with possible candidates found in experiments. We present sta…
View article: Flavor mixing in charmonium and light mesons with optimal distillation profiles
Flavor mixing in charmonium and light mesons with optimal distillation profiles Open
We study the light meson - charmonium - glueball mixing using flavor-singlet meson operators built from optimal distillation profiles together with purely gluonic operators in different $J^{PC}$ channels at two different pion masses ($\app…
View article: Update on two-level sampling for glueball observables in quenched QCD
Update on two-level sampling for glueball observables in quenched QCD Open
We report our progress in combining a two-level sampling algorithm with distillation techniques for calculations of disconnected diagrams in quenched QCD. The simulations are performed on a single ensemble at $\beta=6.0$ and volume $V=16^3…
View article: Hybrid static potentials and gluelumps on $N_f=3+1$ ensembles
Hybrid static potentials and gluelumps on $N_f=3+1$ ensembles Open
QCD permits the existence of hybrid mesons that are made up of both quarks and gluons, including exotic states, i.e., quantum numbers prohibited for pure quark-antiquark states, with possible candidates found in experiments. We present sta…
View article: Static-light meson spectroscopy with optimal distillation profiles
Static-light meson spectroscopy with optimal distillation profiles Open
The spectrum of static-light and static-charm mesons is studied using optimized distillation in two different $N_{\rm{f}} = 3 + 1$ QCD ensembles with pion masses of $m_π \approx 800 \, \text{MeV}$ and $m_π \approx 420 \,\text{MeV}$ and a h…
View article: Static-light meson spectroscopy with optimal distillation profiles
Static-light meson spectroscopy with optimal distillation profiles Open
View article: Update on two-level sampling for glueball observables in quenched QCD
Update on two-level sampling for glueball observables in quenched QCD Open
We report our progress in combining a two-level sampling algorithm with distillation techniques for calculations of disconnected diagrams in quenched QCD. The simulations are performed on a single ensemble at $\beta=6.0$ and volume $V=16^3…
View article: Exponential error reduction for glueball calculations using a two-level algorithm in pure gauge theory
Exponential error reduction for glueball calculations using a two-level algorithm in pure gauge theory Open
This study explores the application of a two-level algorithm to enhance the signal-to-noise ratio of glueball calculations in four-dimensional SU(3) pure gauge theory. Our findings demonstrate that the statistical errors exhibit an exponen…
View article: Optimized Distillation Profiles for Heavy-Light Spectroscopy
Optimized Distillation Profiles for Heavy-Light Spectroscopy Open
It has been demonstrated that distillation profiles can be employed to build optimized quarkonium interpolators for spectroscopy calculations in lattice QCD. We test their usefulness for heavy-light systems on (3+1)-flavor ensembles with m…
View article: Exponential error reduction for glueball calculations using a two-level algorithm in pure gauge theory
Exponential error reduction for glueball calculations using a two-level algorithm in pure gauge theory Open
This study explores the application of a two-level algorithm to enhance the signal-to-noise ratio of glueball calculations in four-dimensional SU(3) pure gauge theory. Our findings demonstrate that the statistical errors exhibit an exponen…
View article: Search for Glueballs in the Presence of Dynamical Quarks
Search for Glueballs in the Presence of Dynamical Quarks Open
View article: Static Hybrid Potentials from Laplacian Eigenmodes
Static Hybrid Potentials from Laplacian Eigenmodes Open
View article: Performance of two-level sampling for the glueball spectrum in pure gauge theory
Performance of two-level sampling for the glueball spectrum in pure gauge theory Open
The computation of the glueball spectrum is particularly challenging due to the rapid decay of the signal-to-noise ratio of the correlation functions. To address this issue, advanced techniques such as gauge link smearing and the variation…
View article: Charmonium spectroscopy with optimal distillation profiles
Charmonium spectroscopy with optimal distillation profiles Open
We use the method of optimal distillation profiles to compute the low-lying charmonium spectrum in an $N_f = 3+1$ ensemble at the $SU(3)$ light flavor symmetric point ($m_π \approx 420$ MeV), physical charm quark mass and lattice spacing $…
View article: Hybrid static potentials from Laplacian eigenmodes
Hybrid static potentials from Laplacian eigenmodes Open
We present a method for computing hybrid static quark-antiquark potentials in lattice QCD based on Laplace trial states. They are formed by eigenvector components of the covariant lattice Laplace operator and their covariant derivatives. T…
View article: Optimized Distillation Profiles for Heavy-Light Spectroscopy
Optimized Distillation Profiles for Heavy-Light Spectroscopy Open
It has been demonstrated that distillation profiles can be employed to build optimized quarkonium interpolators for spectroscopy calculations in lattice QCD. We test their usefulness for heavy-light systems on (3+1)-flavor ensembles with m…
View article: Hybrid static potentials from Laplacian Eigenmodes
Hybrid static potentials from Laplacian Eigenmodes Open
We present a method for computing hybrid static quark-antiquark potentials in lattice QCD based on Laplace trial states. They are formed by eigenvector components of the covariant lattice Laplace operator and their covariant derivatives. T…
View article: Constructing static quark-antiquark creation operators from Laplacian eigenmodes
Constructing static quark-antiquark creation operators from Laplacian eigenmodes Open
We investigate static quark-antiquark operators based on trial states formed from eigenvectors of the covariant three-dimensional lattice Laplace operator. We test the method by computing the static quark-antiquark potential and comparing …
View article: Performance of two-level sampling for the glueball spectrum in pure gauge theory; 40th ed.
Performance of two-level sampling for the glueball spectrum in pure gauge theory; 40th ed. Open
The computation of the glueball spectrum is particularly challenging due to the rapid decay of the signal-to-noise ratio of the correlation functions. To address this issue, advanced techniques such as gauge link smearing and the variation…
View article: Optimized meson operators for charmonium spectroscopy and mixing with glueballs
Optimized meson operators for charmonium spectroscopy and mixing with glueballs Open
Optimized meson operators in the distillation framework are used to study the charmonium spectrum in two ensembles with two heavy dynamical quarks at half the physical charm quark mass but different lattice spacings. The use of optimal mes…
View article: Constructing static quark-anti-quark creation operators from Laplacian eigenmodes
Constructing static quark-anti-quark creation operators from Laplacian eigenmodes Open
We investigate static quark anti-quark operators based on trial states formed from eigenvectors of the covariant three-dimensional lattice Laplace operator. We test the method by computing the static quark-anti-quark potential and comparin…
View article: Optimizing creation operators for charmonium spectroscopy on the lattice
Optimizing creation operators for charmonium spectroscopy on the lattice Open
Smearing the bare quantum fields in lattice calculations before applying composite hadron creation operators has a long record of substantially improving overlaps onto low-lying energy eigenstates. A technique called distillation which def…
View article: Optimising creation operators for charmonium spectroscopy on the lattice
Optimising creation operators for charmonium spectroscopy on the lattice Open
Smearing the bare quantum fields in lattice calculations before applying composite hadron creation operators has a long record of substantially improving overlaps onto low-lying energy eigenstates. A technique called distillation which def…