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372 papers · 1 filter
An Update on the Isospin-Breaking Effects in the Pion Decay Constant with Staggered Quarks
Alessandro Cotellucci, Davide Giusti
We present an update on the ongoing computation of the isospin-breaking effects in the Pion Decay Constant from the BMW Collaboration. The calculation is carried out with N=2+1…
Understanding the structure of nucleon excitations from their wavefunctions
Jackson A. Mickley, Waseem Kamleh, Derek B. Leinweber +1
Relativistic wavefunctions of nucleon excitations are scrutinised to understand their node structure and the underlying role of local interpolating fields in generating the nucleon…
Form factors of the meson from effective field theory and the lattice
Ulf-G. Meißner, Akaki Rusetsky, Ajay S. Sakthivasan +2
The calculation of resonance form factors in effective field theory as well as on the lattice is a highly challenging task. In a recent paper, we proposed a novel method based on t…
Emergence of the Resonance from Lattice QCD
Haobo Yan, Maxim Mai, Marco Garofalo +6
The mass of the lightest hadron in nature, the pion, is one seventh of that of the nucleon and one tenth of the mass of its first excited state, the . This enormous energy…
Efficient lattice QCD computation of radiative-leptonic-decay form factors at multiple positive and negative photon virtualities
Davide Giusti, Christopher F. Kane, Christoph Lehner +2
In previous work Phys. Rev. D 107, 074507 (2023), we showed that form factors for radiative leptonic decays of pseudoscalar mesons can be determined efficiently and with high preci…
QCD thermodynamics with dynamical chiral fermions
Z. Fodor, A. Yu. Kotov, T. G. Kovacs +1
We discuss properties of thermal Quantum Chromodynamics obtained by means of lattice simulations with overlap fermions. This fermion discretisation preserves chiral symmetry at fin…