Results 11 to 20 of about 713,508 (245)
NLO quark self-energy and dispersion relation using the hard thermal loop resummation
Journal of High Energy Physics, 2023 Using the hard-thermal-loop (HTL) resummation in real-time formalism, we study the next-to-leading order (NLO) quark self-energy and corresponding NLO dispersion laws.
Sumit, Najmul Haque, Binoy Krishna Patra
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Integrating by parts at finite density
Journal of High Energy Physics, 2023 Both nonzero temperature and chemical potentials break the Lorentz symmetry present in vacuum quantum field theory by singling out the rest frame of the heat bath.
Juuso Österman +2 more
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Pion scattering poles and chiral symmetry restoration [PDF]
, 2007 Using unitarized Chiral Perturbation Theory methods, we perform a detailed analysis of the $\pi\pi$ scattering poles $f_0(600)$ and $\rho(770)$ behaviour when medium effects such as temperature or density drive the system towards Chiral Symmetry ...
A. Gómez Nicola +3 more
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Quantum simulation of chiral phase transitions
Journal of High Energy Physics, 2022 The Nambu–Jona-Lasinio (NJL) model has been widely studied for investigating the chiral phase structure of strongly interacting matter. The study of the thermodynamics of field theories within the framework of Lattice Field Theory is limited by the sign ...
Alexander M. Czajka +3 more
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Gauge invariant derivative expansion of the effective action at finite temperature and density and the scalar field in 2+1 dimensions [PDF]
, 2000 A method is presented for the computation of the one-loop effective action at finite temperature and density. The method is based on an expansion in the number of spatial covariant derivatives.
A. Das +50 more
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The sphaleron rate from 4D Euclidean lattices
Journal of High Energy Physics, 2023 We develop a new method to determine thermal activation rates, such as for bubble nucleation, topology change, etc., using 4-dimensional Euclidean methods. This allows nonperturbative study on the lattice. We then investigate the strong sphaleron rate in
Marc Barroso Mancha, Guy D. Moore
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Pion spectral properties above the chiral crossover of QCD
Journal of High Energy Physics, 2022 Spectral functions encode a wealth of information about the dynamics of any given system, and the determination of their non-perturbative characteristics is a long-standing problem in quantum field theory.
Peter Lowdon, Owe Philipsen
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Holographic picture of heavy vector mesons in a finite density plasma
, 2017 We present the results of a holographic model for heavy vector mesons inside a plasma at finite temperature and density. The spectral function shows a nice description of the dissociation of the mesons in the medium, corresponding to the decrease in the ...
Braga, Nelson R. F., Ferreira, Luiz F.
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Investigation of heavy-heavy pseudoscalar mesons in thermal QCD Sum Rules [PDF]
, 2011 We investigate the mass and decay constant of the heavy-heavy pseudoscalar, $B_c$, $\eta_c$ and $\eta_b$ mesons in the framework of finite temperature QCD sum rules.
Aliev T M +13 more
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The 2d Gross-Neveu Model at Finite Temperature and Density with Finite Corrections
, 2006 We use the linear $\delta$ expansion, or optimized perturbation theory, to evaluate the effective potential for the two dimensional Gross-Neveu model at finite temperature and density obtaining analytical equations for the critical temperature, chemical ...
Kneur, Jean-Loic +2 more
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