Results 21 to 30 of about 713,508 (245)

Renormalization Group Flow Equation at Finite Density [PDF]

open access: yes, 1999
For the linear sigma model with quarks we derive renormalization group flow equations for finite temperature and finite baryon density using the heat kernel cutoff.
B.-J. Schaefer   +28 more
core   +2 more sources

The Friedberg-Lee model at finite temperature and density

open access: yes, 2008
The Friedberg-Lee model is studied at finite temperature and density. By using the finite temperature field theory, the effective potential of the Friedberg-Lee model and the bag constant $B(T)$ and $B(T,\mu)$ have been calculated at different ...
A. W. Thomas   +4 more
core   +1 more source

Pion dynamics in a soft-wall AdS-QCD model

open access: yesJournal of High Energy Physics, 2022
Pseudo-Goldstone modes appear in many physical systems and display robust universal features. First, their mass m obeys the so-called Gell-Mann-Oakes-Renner (GMOR) relation f 2 m 2 = H σ ¯ $$ H\overline{\sigma} $$ , with f the Goldstone stiffness, H the ...
Xuanmin Cao   +3 more
doaj   +1 more source

Analogy of QCD hadronization and Hawking-Unruh radiation at NICA

open access: yes, 2016
The proposed analogy of particle production from high-energy collisions and Hawking-Unruh radiation from black holes is extended to finite density (collisions) and finite-electric charge (black holes).
Tawfik, Abdel Nasser
core   +1 more source

Restoration of chiral symmetry in quark models with effective one gluon exchange

open access: yes, 1996
The restoration of chiral symmetry at finite density and/or temperature is investigated in a wide class of one-gluon exchange models in the instantaneous approximation.
Adler   +35 more
core   +1 more source

Fourier transform of the 2kF Luttinger liquid density correlation function with different spin and charge velocities [PDF]

open access: yes, 2007
We obtain a closed-form analytical expression for the zero-temperature Fourier transform of the 2kF component of the density-density correlation function in a Luttinger liquid with different spin and charge velocities.
Fiete, Gregory A.   +2 more
core   +3 more sources

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Photon polarization tensor at finite temperature and density in a magnetic field

open access: yesJournal of High Energy Physics
We present analytical and numerical calculations for the photon polarization tensor at finite temperature and density in a constant magnetic field. We first discuss the tensor decomposition in the presence of the magnetic field, which breaks rotational ...
Kenji Fukushima   +2 more
doaj   +1 more source

Two-body correlation functions in nuclear matter with $np$ condensate

open access: yes, 2006
The density, spin and isospin correlation functions in nuclear matter with a neutron-proton ($np$) condensate are calculated to study the possible signatures of the BEC-BCS crossover in the low-density region.
A. A. Isayev   +9 more
core   +1 more source

Holographic phase transitions at finite baryon density [PDF]

open access: yes, 2006
We use holographic techniques to study SU(Nc) super Yang-Mills theory coupled to Nf
A. Karch   +35 more
core   +2 more sources

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