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arXiv · 1801.00298

The pion quasiparticle in the low-temperature phase of QCD

Bastian B. Brandt·Anthony Francis·Harvey B. Meyer·Daniel Robaina·Kai Zapp
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Abstract

We extend our previous studies [PhysRevD.90.054509, PhysRevD.92.094510] of the pion quasiparticle in the low-temperature phase of two-flavor QCD with support from chiral effective theory. This includes the analysis performed on a finite temperature ensemble of size $20\times 64^3$ at $T\approx 151$MeV and a lighter zero-temperature pion mass $m_π \approx 185$ MeV. Furthermore, we investigate the Gell-Mann--Oakes-Renner relation at finite temperature and the Dey-Eletsky-Ioffe mixing theorem at finite quark mass.

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Bastian B. Brandt, Anthony Francis, Harvey B. Meyer, Daniel Robaina, Kai Zapp. 2017-12-31. The pion quasiparticle in the low-temperature phase of QCD. https://doi.org/10.1051/epjconf%2F201817507045

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