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相关论文: Long range chromomagnetic fields at high temperatu…

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We compute the combined effect of confinement, an external magnetic field and temperature on the vacuum of the charged scalar field using Schwinger's formula for the effective action in the imaginary time formalism. The final result…

高能物理 - 理论 · 物理学 2007-05-23 M. V. Cougo-Pinto , C. Farina , M. R. Negrao

In this proceeding the emergence of a composite, adjoint-scalar field as an average over (trivial holonomy) calorons and anti-calorons is reviewed. This composite field acts as a background field to the dynamics of perturbative gluons, to…

高能物理 - 理论 · 物理学 2009-06-25 Francesco Giacosa

An analytical expression for the first-order density matrix of a charged, two-dimensional, harmonically confined quantum gas, in the presence of a constant magnetic field is derived. In contrast to previous results available in the…

统计力学 · 物理学 2009-11-11 Patrick Shea , Brandon P. van Zyl

We study properties of neutral and charged mesons in strong magnetic fields |eB|>> Lambda_QCD^2 with Lambda_QCD being the QCD renormalization scale. Assuming long-range interactions, we examine magnetic-field dependences of various…

高能物理 - 唯象学 · 物理学 2016-04-07 Koichi Hattori , Toru Kojo , Nan Su

We investigate the finite-temperature excitation spectrum in the gluon sector of $SU(3)$ pure gauge theory through measurements of screening masses in correlations of loop operators. We develop the classification of such operators under the…

高能物理 - 格点 · 物理学 2009-10-22 B. Grossman , Sourendu Gupta , U. M. Heller , F. Karsch

The spontaneous magnetization in Chern-Simons QED_3 is discussed in a finite temperature system. The thermodynamical potential is analyzed within the weak field approximation and in the fermion massless limit. We find that there is a linear…

高能物理 - 理论 · 物理学 2016-09-06 Shinya Kanemura , Takao Matsushita

About half the mass of a hadron is given from gluonic contributions. In this talk we calculate the chromo-electric and chromo-magnetic components of the nucleon mass. These computations are numerically difficult due to gluon field…

高能物理 - 格点 · 物理学 2008-11-26 M. Goeckeler , R. Horsley , E. -M. Ilgenfritz , H. Oelrich , H. Perlt , P. E. L. Rakow , G. Schierholz , A. Schiller , P. Stephenson

Large scale chromomagnetic, B_3, B_8, and usual magnetic,H, fields have to be generated in QCD after the deconfinement phase transition (DPT) at temperatures T larger than deconfinement temperature T_d. The two former fields are created…

高能物理 - 唯象学 · 物理学 2016-12-02 V. Skalozub , P. Minaiev

We present results for the (color)magnetic and (color)electric screening masses of the Quark-Gluon Plasma in the presence of an external magnetic field. The screening masses are extracted from the correlators of Polyakov loops, determined…

The spontaneous generation of the magnetic and chromomagnetic fields at high temperature is investigated in the Standard Model. The consistent effective potential including the one-loop and the daisy diagrams of all boson and fermion fields…

高能物理 - 唯象学 · 物理学 2009-01-07 V. I. Demchik , V. V. Skalozub

In thermal equilibrium the ground state of the plasma of Standard Model particles is determined by temperature and exactly conserved combinations of baryon and lepton numbers. We show that at non-zero values of the global charges a…

高能物理 - 唯象学 · 物理学 2012-10-09 Alexey Boyarsky , Oleg Ruchayskiy , Mikhail Shaposhnikov

We discuss how magnetic screening can be systematically included in a self-consistent way for Chromodynamics at high temperatures. The resulting gap equation, which gives the summation of self-energy iterations, is calculated to one-loop…

高能物理 - 唯象学 · 物理学 2009-10-28 G. Alexanian , V. P. Nair

By the Schwinger proper-time method, the one-loop contribution to the anomalous magnetic moment of the W-boson is calculated at high temperature. It is shown that the value of AMM is positive and depends linearly upon temperature.

高能物理 - 唯象学 · 物理学 2009-11-07 A. V. Strelchenko

We consider a variational approach to the finite temperature Yang-Mills theory in the Coulomb gauge. The partition function is computed in the ensemble of glueballs and quasi-gluons which emerge as eigenstates of the Coulomb gauge…

高能物理 - 理论 · 物理学 2013-05-30 Tochtli Yepez Martinez , Adam P. Szczepaniak , Hugo Reinhardt

We study the one-loop gluon polarization tensor at zero and finite temperature in the presence of a magnetic field, to extract the thermo-magnetic evolution of the strong coupling $\alpha_s$. We analyze four distinct regimes, to wit, the…

高能物理 - 唯象学 · 物理学 2018-08-29 Alejandro Ayala , C. A. Dominguez , Saul Hernandez-Ortiz , L. A. Hernandez , M. Loewe , D. Manreza Paret , R. Zamora

We present the general derivation of the full nonperturbative equation that governs the momentum evolution of the dynamically generated gluon mass, in the Landau gauge. The gluon mass originates from the inclusion of longitudinally coupled…

高能物理 - 唯象学 · 物理学 2013-01-18 Joannis Papavassiliou , David Ibanez

Using lattice results for the Landau gauge gluon propagator at finite temperature, we investigate its interpretation as a massive type bosonic propagator. In particular, we estimate a gluon mass from Yukawa-like fits to the lattice data and…

高能物理 - 格点 · 物理学 2014-01-27 Pedro Bicudo , Orlando Oliveira , Paulo Silva , Nuno Cardoso

Free energy, internal energy, and specific heat for each of the three phonon spectrum branches of a magnetized Coulomb crystal with body-centered cubic lattice are calculated by numerical integration over the Brillouin zone in the range of…

高能天体物理现象 · 物理学 2013-07-10 D. A. Baiko , D. G. Yakovlev

We compute the magnetization of graphene in a magnetic field, taking into account for generality the possibility of a mass gap. We concentrate on the physical regime where quantum oscillations are not observed due to the effect of the…

介观与纳米尺度物理 · 物理学 2012-10-01 Sergey Slizovskiy , Joseph Betouras

The magnetic sector of SU(N) Yang-Mills theory at finite temperature is studied. At low temperatures, T<2T_c, the analytic expressions for the temperature dependence of the magnetic correlator, of the magnetic gluon condensate and of the…

高能物理 - 唯象学 · 物理学 2014-11-17 Nikita O. Agasian