arXiv subjects

Fernando P. Panadero

Publications and source records attributed to Fernando P. Panadero.

3 recordsLinked to original sources

arXiv2026

Light and strange quark masses with $N_f = 2 + 1$ Wilson fermions

We report on the status of an update of our collaboration's previous computation of light and strange quark masses in QCD with $N_{f}=2+1$ dynamical flavours. Bare quark masses are extracted from CLS ensembles, using $O(a)$-improved Wilson fermions, and the mass renormalization is performed non-perturbatively in the Schrödinger functional scheme over a wide range of scales to make safe contact with perturbation theory. Results for five lattice spacings, down to $a\sim 0.038 \textrm{ fm}$, and pion masses reaching the physical value are included in the analysis. This allows for the exploration of different models for cutoff and chiral effects, and a controlled extrapolation to the physical point.

hep-lat↗

arXiv2026

A first study of strong isospin breaking effects in lattice QCD using truncated polynomials

Computing derivatives of observables with respect to parameters of the theory is a powerful tool in lattice QCD, as it allows the study of physical effects not directly accessible in the original Monte Carlo simulation. Prominent examples of this include the impact of the up-down quark mass difference and electromagnetic corrections. In this work, we present a new approach based on automatic differentiation to evaluate such derivatives to arbitrarily high orders, where particular emphasis will be placed on strong isospin-breaking effects and on the propagation of derivatives through the conjugate gradient algorithm in the computation of correlation functions.

hep-lat↗

arXiv2025

A Julia Code for Lattice QCD on GPUs

We present a new GPU-based open source package to perform Lattice simulations developed in Julia. The code currently supports generation of SU(2) and SU(3) (pure gauge) configurations with different actions and boundary conditions, and is able to perform measurements of flow observables (both gluonic and fermionic) as well as different fermionic two point functions. We will show the capabilities of the package, and provide information about some measurement codes built on top of this framework.

hep-lat↗