Results 11 to 20 of about 10,075 (182)

Anisotropic Behavior of S‐Wave and P‐Wave States of Heavy Quarkonia at Finite Magnetic Field

open access: yesAdvances in High Energy Physics, Volume 2023, Issue 1, 2023., 2023
We studied the effect of momentum space anisotropy on heavy quarkonium states using an extended magnetized effective fugacity quasiparticle model (EQPM). Both the real and imaginary part of the potential has been modified through the dielectric function by including the anisotropic parameter ξ.
Manohar Lal   +4 more
wiley   +1 more source

From cosmic matter to the laboratory

open access: yesAstronomische Nachrichten, Volume 342, Issue 5, Page 808-818, June 2021., 2021
Abstract The recent discovery of binary neutron star mergers has opened a new and exciting venue of research into hot and dense strongly interacting matter. For the first time, this elusive state of matter, described by the theory of quantum chromo dynamics, can be studied in two very different environments.
Anton Motornenko   +2 more
wiley   +1 more source

String (Gravi)photons, “Dark Brane Photons”, Holography and the Hypercharge Portal

open access: yesFortschritte der Physik, Volume 69, Issue 6, June 2021., 2021
Abstract The mixing of graviphotons and dark brane photons to the Standard Model hypercharge is analyzed in full generality, in weakly‐coupled string theory. Both the direct mixing as well as effective terms that provide mixing after inclusion of SM corrections are estimated to lowest order.
P. Anastasopoulos   +3 more
wiley   +1 more source

An Effective Model for Glueballs and Dual Superconductivity at Finite Temperature

open access: yesAdvances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021
The glueballs lead to gluon and QCD monopole condensations as by‐products of color confinement. A color dielectric function G(∣ϕ∣) coupled with a Abelian gauge field is properly defined to mediate the glueball interactions at confining regime after spontaneous symmetry breaking (SSB) of the gauge symmetry. The particles are expected to form through the
Adamu Issifu   +2 more
wiley   +1 more source

Influence of the Effective Potential on the Crossover Width in the Two Flavor Polyakov‐Nambu‐Jona‐Lasinio Model

open access: yesAdvances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
We study the strongly interacting matter phase diagram on the T − μ plane through the two flavor Polyakov extended NJL model. We compare the phase diagrams obtained from three different effective potentials, focusing on the behavior of the width of the crossover region and the critical end point for each case.
E. Valbuena-Ordóñez   +4 more
wiley   +1 more source

Dynamical symmetry breaking in Nambu-Jona-Lasinio model under the influence of external electromagnetic and gravitational fields [PDF]

open access: yes, 1998
Dynamical symmetry breaking is investigated for a four-fermion Nambu-Jona-Lasinio model in external electromagnetic and gravitational fields. An effective potential is calculated in the leading order of the large-N expansion using the proper-time ...
Elizalde, E., Shil'nov, Yu. I.
core   +2 more sources

Analysis of ρ condensation in a Nambu-Jona-Lasinio model

open access: yesEPJ Web of Conferences, 2014
A non-local Nambu-Jona-Lasinio model can be derived from QCD in the lowenergy limit. In this way, it is possible to fix all the free parameters of the model with physical ones. We used this approach to derive a local limit to the Nambu-Jona-Lasinio model,
Frasca Marco
doaj   +1 more source

Nonlocal Nambu–Jona-Lasinio model and chiral chemical potential

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We derive the critical temperature in a nonlocal Nambu–Jona-Lasinio model with the presence of a chiral chemical potential. The model we consider uses a form factor derived from recent studies of the gluon propagator in Yang–Mills theory and has the ...
Marco Frasca
doaj   +1 more source

Dynamics of inhomogeneous chiral condensates

open access: yesEPJ Web of Conferences, 2018
We study the dynamics of the formation of inhomogeneous chirally broken phases in the final stages of a heavy-ion collision, with particular interest on the time scales involved in the formation process.
Carlomagno Juan Pablo   +3 more
doaj   +1 more source

Melting of the quark condenstate in the NJL model with meson loops [PDF]

open access: yes, 1996
Temperature dependence of the quark condensate is studied in the Nambu--Jona-Lasinio model with meson loops. Substantial differences are found compared to the results with quark loops only.Comment: Latex, 3 ps figures, 10 ...
Ball   +20 more
core   +2 more sources

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