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More on the flavor dependence of m_varrho / f_π

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arxiv 2107.05996 v1 pith:VST5WXAS submitted 2021-07-13 hep-lat hep-ph

More on the flavor dependence of m_varrho / f_π

classification hep-lat hep-ph
keywords dependencefermionsratiovarrhoworkalongartefactarxiv
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In previous work, arXiv:1905.01909, we have calculated the $m_\varrho / f_\pi$ ratio in the chiral and continuum limit for $SU(3)$ gauge theory coupled to $N_f = 2,3,4,5,6$ fermions in the fundamental representation. The main result was that this ratio displays no statistically significant $N_f$-dependence. In the present work we continue the study of the $N_f$-dependence by extending the simulations to $N_f = 7, 8, 9, 10$. Along the way we also study in detail the $N_f$-dependence of finite volume effects on low energy observables and a particular translational symmetry breaking unphysical, lattice artefact phase specific to staggered fermions.

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