Meson Screening Masses in the Interacting QCD Plasma

Abstract

The meson screening mass in the pseudoscalar channel is calculated from the momentum dependent meson spectral function, using HTL fermionic propagators. A careful subtraction procedure is required to get an UV finite result. It is shown that in the whole range of temperatures explored here the HTL screening mass stays above the non-interacting result, slowly approaching the value $m_{\trm{scr}}=2\sqrt{π^2T^2+m_\infty^2}$, where $m_{\infty }^2$ is the HTL asymptotic thermal quark mass. Our analysis leads to a better understanding of the excitations of QGP at sufficiently large temperatures and may be of relevance for interpreting lattice results.

21 pages, 12 figures, submitted to Nucl.Phys.A

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Cited by in corpus (12)

• Meson screening masses from lattice QCD with two light and the strange quark
• On the strength of the $U_A(1)$ anomaly at the chiral phase transition in $N_f=2$ QCD
• A relation between screening masses and real-time rates
• The fast life of holographic mesons
• Quasi-static probes of the QCD plasma
• Cutoff effects of Wilson fermions on the QCD equation of state to O(g^2)
• Screening of light mesons and charmonia at high temperature
• Hadronic Screening in Improved Taste
• Existence of mesons after deconfinement
• HTL approach to the viscosity of quark plasma
• Meson Correlation Function and Screening Mass in Thermal QCD
• Screening Masses of Scalar and Pseudo-scalar Excitations in Quark-gluon Plasma