Conference Presentation (After Call)

FZJ-2025-05627

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png An Update on the Isospin-Breaking Effects in the Pion Decay Constant with Staggered Quarks

Cotellucci, A. (Collaboration author)FZJ* ; BMW Collaboration

2025

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Please use a persistent id in citations: doi:10.34734/FZJ-2025-05627

Abstract: We present an update of the ongoing computation of the isospin-breaking effects in the Pion Decay Constant from the BMW Collaboration. The calculation is carried out with N$_{f}=2+1+1$ staggered quarks with a near-physical pion mass and QED. We present some preliminary results of the valence-valence contribution to the axial-pseudoscalar correlator for different volumes $L=4.2,6.3,8.4$ fm at $a=0.1315$ fm and a single volume $L=6$ fm and at $a=0.0952$ fm. We also discuss the next steps and plans.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)

Appears in the scientific report 2025

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