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Thermal screening masses of the conserved vector current are calculated both in a weak-coupling approach and in lattice QCD. The inverse of a screening mass can be understood as the length scale over which an external electric field is…

High Energy Physics - Lattice · Physics 2016-11-30 Bastian B. Brandt , Anthony Francis , Harvey B. Meyer , Aman Steinberg , Kai Zapp

Static and non-static thermal screening states that couple to the conserved vector current are investigated in the high-temperature phase of QCD. Their masses and couplings to the current are determined at weak coupling, as well as using…

High Energy Physics - Lattice · Physics 2015-06-22 B. B. Brandt , A. Francis , M. Laine , H. B. Meyer

Understanding the screening mass of pseudoscalar mesons at finite temperature and magnetic field is crucial for comprehending the behavior of strongly interacting matter under extreme conditions, such as those found in the early universe or…

High Energy Physics - Lattice · Physics 2025-02-11 Rishabh Thakkar , Heng-Tong Ding , Jin-Biao Gu , Sheng-Tai

We calculate the electric screening mass in hot hadronic matter using two different approaches, chiral perturbation theory and the relativistic virial expansion with empirical phase shifts, and compare the results to each other and to a gas…

High Energy Physics - Phenomenology · Physics 2009-10-22 V. L. Eletsky , J. I. Kapusta , R. Venugopalan

We present lattice QCD results on heavy quark free energies, extract from its temperature dependence entropy and internal energy contributions, and discuss the onset of medium effects that lead to screening of static quark-antiquark sources…

High Energy Physics - Lattice · Physics 2014-11-18 O. Kaczmarek

We present a strategy based on the step-scaling technique to study non-perturbatively thermal QCD up to very high temperatures. As a first concrete application, we compute the flavour non-singlet meson screening masses at 12 temperatures…

High Energy Physics - Lattice · Physics 2022-04-08 Mattia Dalla Brida , Leonardo Giusti , Tim Harris , Davide Laudicina , Michele Pepe

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…

High Energy Physics - Phenomenology · Physics 2008-11-26 W. M. Alberico , A. Beraudo , A. Czerska , P. Czerski , A. Molinari

Screening masses of different hadronic states are studied in thermal and dense medium on lattice. It has been found that screening masses increase with the temperature. In deconfinement phase, chemical potential enhances the screening…

High Energy Physics - Lattice · Physics 2008-11-26 A. Tawfik

We present a method to compute the responses of meson screening masses to the chemical potential by Taylor expanding the correlator using lattice QCD simulation. We start by comparing the free theory lattice results with the analytical…

High Energy Physics - Lattice · Physics 2023-08-09 Rishabh Thakkar , Prasad Hegde

We present results for screening masses of mesons built from light and strange quarks in the temperature range of approximately between 140 MeV to 800 MeV. The lattice computations were performed with 2+1 dynamical light and strange flavors…

Novel theoretical and computational strategies have opened the possibility of exploring thermal QCD at the non-perturbative level at unprecedented temperatures, reaching from the GeV scale up to the electroweak scale. A number of observable…

High Energy Physics - Lattice · Physics 2026-03-20 Marco Cè , Leonardo Giusti , Michele Pepe , Pietro Rescigno

Screening correlators and masses were studied at finite temperature in QCD with two flavours of dynamical staggered quarks on a lattice. The spectrum of screening masses show a hierarchical approach to chiral symmetry restoration. Control…

High Energy Physics - Lattice · Physics 2011-05-12 Debasish Banerjee , Rajiv V. Gavai , Sourendu Gupta

We present lattice QCD results for mesonic screening masses in the temperature range 140 MeV $\lesssim T \lesssim$ 2500 MeV. Our calculations were carried out using (2+1)-flavors of the Highly Improved Staggered Quark (HISQ) action, with a…

We investigate the effects of temperature $T$ and external magnetic fields $eB$ on the chiral condensates and screening masses of neutral pseudoscalar mesons, including $\pi^0$, $K^0$, and $\eta_{s\bar{s}}^0$, in (2+1)-flavor lattice QCD…

High Energy Physics - Lattice · Physics 2025-04-29 Heng-Tong Ding , Jin-Biao Gu , Sheng-Tai Li , Rishabh Thakkar

The properties of hadron screening masses around the deconfinement phase transition at finite baryonic density can be studied by evaluating the Taylor coefficients with respect to the iso-scalar and iso-vector chemical potentials. We…

We present results on the thermodynamic and continuum limit of meson screening masses in the deconfined phase, using standard staggered and non-perturbatively clover-improved Wilson fermions in the quenched approximation with light quark…

High Energy Physics - Lattice · Physics 2013-11-18 Olaf Kaczmarek , Edwin Laermann , Marcel Müller

We present lattice QCD results for the screening masses of light mesons and charmonia. The lattice computations were performed with 2+1 flavors of improved staggered quarks using quark masses which correspond to realistic pion and kaon…

High Energy Physics - Lattice · Physics 2009-11-16 Swagato Mukherjee

Various definitions for the QCD Debye mass and its evaluation are reviewed in a non-perturabtive framework for the study of screening of general static sources. While it is possible to perturbatively integrate over scales $\sim T$ and thus…

High Energy Physics - Phenomenology · Physics 2017-08-23 O. Philipsen

We discuss the extension of gauge-invariant electric and magnetic screening masses in the Quark-Gluon Plasma to the case of a finite baryon density, defining them in terms of a matrix of Polyakov loop correlators. We present lattice results…

High Energy Physics - Lattice · Physics 2018-04-04 Michele Andreoli , Claudio Bonati , Massimo D'Elia , Michele Mesiti , Francesco Negro , Andrea Rucci , Francesco Sanfilippo

Responses to chemical potential of the pseudoscalar meson screening mass and the chiral condensate in lattice QCD are investigated. On a $16 \times 8^2 \times \4$ lattice with two flavors of staggered quarks the first and second responses…

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