Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Hernàndez, Pilar"'
We study the large $N_\text{c}$ scaling of meson-meson scattering amplitudes in a theory with $N_\text{f}=4$ degenerate quark flavors. We focus on two different scattering channels, one having the same quantum numbers as some recently found tetraquar
Externí odkaz:
http://arxiv.org/abs/2401.05177
Autor:
Albandea, David, Del Debbio, Luigi, Hernández, Pilar, Kenway, Richard, Rossney, Joe Marsh, Ramos, Alberto
The so-called trivializing flows were proposed to speed up Hybrid Monte Carlo simulations, where the Wilson flow was used as an approximation of a trivializing map, a transformation of the gauge fields which trivializes the theory. It was shown that
Externí odkaz:
http://arxiv.org/abs/2310.03381
Autor:
Albandea, David, Del Debbio, Luigi, Hernández, Pilar, Kenway, Richard, Rossney, Joe Marsh, Ramos, Alberto
The recent introduction of Machine Learning techniques, especially Normalizing Flows, for the sampling of lattice gauge theories has shed some hope on improving the sampling efficiency of the traditional Hybrid Monte Carlo (HMC) algorithm. In this wo
Externí odkaz:
http://arxiv.org/abs/2302.08408
Autor:
Lasa-Alonso, Jon, Olmos-Trigo, Jorge, Devescovi, Chiara, Hernández, Pilar, García-Etxarri, Aitzol, Molina-Terriza, Gabriel
Dual scatterers preserve the helicity of an incident field, whereas antidual scatterers flip it completely. In this setting of linear electromagnetic scattering theory, we provide a completely general proof on the non-existence of passive antidual sc
Externí odkaz:
http://arxiv.org/abs/2302.02647
Autor:
Albandea, David, Del Debbio, Luigi, Hernández, Pilar, Kenway, Richard, Rossney, Joe Marsh, Ramos, Alberto
The recent introduction of machine learning techniques, especially normalizing flows, for the sampling of lattice gauge theories has shed some hope on improving the sampling efficiency of the traditional HMC algorithm. Naive use of normalizing flows
Externí odkaz:
http://arxiv.org/abs/2211.12806
Publikováno v:
JHEP 12 (2022) 012
We revisit the generation of a matter-antimatter asymmetry in the minimal extension of the Standard Model with two singlet heavy neutral leptons (HNL) that can explain neutrino masses. We derive an accurate analytical approximation to the solution of
Externí odkaz:
http://arxiv.org/abs/2207.01651
Neutrino experiments lie at the edge of the intensity frontier and therefore can be exploited to search for new light particles weakly coupled to the visible sector. In this work we derive new constraints on axion-like particles (ALPs) using data fro
Externí odkaz:
http://arxiv.org/abs/2202.03447
Publikováno v:
JHEP 06 (2022) 049
We present the first lattice study of pion-pion scattering with varying number of colors, $N_\text{c}$. We use lattice simulations with four degenerate quark flavors, $N_\text{f}=4$, and $N_\text{c}=3-6$. We focus on two scattering channels that do n
Externí odkaz:
http://arxiv.org/abs/2202.02291
Standard sampling algorithms for lattice QCD suffer from topology freezing (or critical slowing down) when approaching the continuum limit, thus leading to poor sampling of the distinct topological sectors. I will present a modified Hamiltonian Monte
Externí odkaz:
http://arxiv.org/abs/2111.05745
We study the Large $N_\text{c}$ scaling of pion-pion scattering amplitudes for $N_\text{f}=4$ degenerate quark flavors. We focus on the standard isospin-2 channel and the adjoint-antisymmetric (AA) representation. The latter only exists for $N_\text{
Externí odkaz:
http://arxiv.org/abs/2110.15671