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Profiles of the broken string in two-flavor QCD below and above the finite temperature transition

V. G. Bornyakov·M. N. Chernodub·H. Ichie·Y. Koma·Y. Mori·M. I. Polikarpov·G. Schierholz·H. Stüben·T. Suzuki
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Abstract

We study the Abelian flux tube profile of mesonic and the baryonic configurations of static quarks below and above the finite-temperature transition in $N_f=2$ full QCD. To reduce effects of ultra-violet fluctuations we measure Abelian distributions of the action density, the color-electric field and the monopole current after fixing to the maximally Abelian gauge. Changing the distance $R$ between quarks for fixed $T/T_c<1$, one can see a clear signal of string breaking for large $R$. The electric field becomes Coulomb-like and the circulating monopole current disappears. We study also the temperature dependence of the flux profile for fixed $R \approx 0.7$ fm. The disappearance of the squeezed flux is observed clearly above $T_c$. Similar behaviors are observed both in the mesonic and the baryonic systems.

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V. G. Bornyakov, M. N. Chernodub, H. Ichie, Y. Koma, Y. Mori, M. I. Polikarpov, G. Schierholz, H. Stüben, T. Suzuki. 2004-01-20. Profiles of the broken string in two-flavor QCD below and above the finite temperature transition. https://doi.org/10.1143/ptp.112.307

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