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Signs of Non-Monotonic Finite-Volume Corrections to
Zack B. Hall, Dimitra A. Pefkou, Aaron S. Meyer +10
We study finite-volume (FV) corrections to determinations of via lattice quantum chromodynamics (QCD) using analytic results and numerical analysis. We observe that H…
Comparing phenomenological estimates of dilepton decays of pseudoscalar mesons with lattice QCD
Bai-Long Hoid, Martin Hoferichter, Jacobo Ruiz de Elvira
Dilepton decays of pseudoscalar mesons have been drawing particular interest, thanks to their sensitivity to both the QCD dynamics at low energy and also signals beyond the Standar…
Nucleon form factors and the pion-nucleon sigma term
Rajan Gupta, Tanmoy Bhattacharya, Vincenzo Cirigliano +8
This talk summarizes the progress made since Lattice 2021 in understanding and controlling the contributions of towers of multihadron excited states with mass gaps starting lower t…
The pion-nucleon sigma term from Lattice QCD
Rajan Gupta, Tanmoy Bhattacharya, Martin Hoferichter +3
We summarize recent evidence, both from lattice QCD and chiral perturbation theory, that suggests that larger-than-expected excited-state contamination could be the reason for the…
Excited states and precision results for nucleon charges and form factors
Rajan Gupta, Tanmoy Bhattacharya, Vincenzo Cirigliano +8
The exponentially falling signal-to-noise ratio in all nucleon correlation functions, and the presence of towers of multihadron excited states with relatively small mass gaps makes…
The pion-nucleon sigma term from lattice QCD
Rajan Gupta, Sungwoo Park, Martin Hoferichter +3
We present an analysis of the pion-nucleon -term, , using six ensembles with 2+1+1-flavor highly improved staggered quark action generated by the MILC collaboration. The…