Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

The pion-nucleon sigma term with $N_f = 2 + 1$ O($a$)-improved Wilson fermions

Aug 9, 2022, 5:50 PM
CP1-HSZ/1.002 (CP1-HSZ) - HS6 (CP1-HSZ)

CP1-HSZ/1.002 (CP1-HSZ) - HS6


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Oral Presentation Hadron Structure Hadron Structure


Dalibor Djukanovic


We present an analysis of the pion-nucleon sigma term on the CLS ensembles with $N_f = 2 + 1$ flavors of ${\cal O}(a)$-improved Wilson fermions. We perform a chiral interpolation based on ensembles with pion masses ranging from 130 MeV to roughly 350 MeV. The analysis covers four lattice spacings between $a\approx 0.05\mathrm{fm}\ldots0.09\mathrm{fm}$, allowing for an estimate of systematics associated with lattice artefacts.

Primary authors

Dr Andria Agadjanov (Johannes Gutenberg University Mainz) Dalibor Djukanovic Georg von Hippel (JGU Mainz) Harvey B. Meyer (Johannes Gutenberg University Mainz) Konstantin Ottnad (University of Mainz) Hartmut Wittig

Presentation materials