نتایج جستجو برای: heavy vacuum slops
تعداد نتایج: 171187 فیلتر نتایج به سال:
The results concerning the e+e− production in peripheral highly relativistic heavy-ion collisions presented in a recent paper by Baltz et al. are rederived in a very straightforward manner. It is shown that the solution of the Dirac equation directly leads to the multiplicity, i.e. to the total number of electronpositron pairs produced by the electromagnetic field of the ions, whereas the calcu...
We demonstrate the possibility of forming a single, large domain of disoriented chiral condensate (DCC) in a heavy-ion collision. In our scenario, rapid initial heating of the parton system provides a driving force for the chiral field, moving it away from the true vacuum and forcing it to go to the opposite side on the vacuum manifold. This converts the entire hot region into a single DCC doma...
We propose and study at large N a new lattice gauge model , in which the YangMills interaction is induced by the heavy scalar field in adjoint representation. At any dimension of space and anyN the gauge fields can be integrated out yielding an effective field theory for the gauge invariant scalar field, corresponding to eigenvalues of the initial matrix field. This field develops the vacuum av...
As demonstrated by Chernodub, strong magnetic field forces vacuum to develop real condensates of electrically charged ρ mesons, which form an anisotropic inhomogeneous superconducting state similar to Abrikosov vortex lattice. As far as electromagnetic field behaviour is concerned, this state of vacuum constitutes a hyperbolic metamaterial [1]. Here we demonstrate that spatial variations of mag...
In this article, we restudy the mass spectrum of ground state triply-heavy baryon states with QCD sum rules by carrying out operator product expansion up to vacuum condensates dimension 6 in a consistent way and preforming novel analysis. It is first time take into account three-gluon for states.
objective: the main objective pursued in this paper is to investigate the energy consumption for drying of potato slices using vacuum-infrared drying method. methods: drying of potato slices with the thicknesses of 1, 2 and 3 mm were conducted at vacuum levels of zero (without vacuum), 20, 80 and 140 mm [hg], infrared radiation at power levels of 100, 150 and 200 w in the three repetition. resu...
The possibility of forming disoriented chiral condensate (DCC) in relativistic heavy ion collisions has generated considerable research activities in recent years. The idea was first proposed by Rajagopal and Wilczek [1–4]. They argued that for a second order chiral phase transition, the chiral condensate can become temporarily disoriented in the nonequilibrium conditions encountered in heavy i...
The QED vacuum polarization function is calculated to O(α) (next-to-leading order) accuracy in the threshold regime by using the concept of effective field theories to resum diagrams with the instantaneous Coulomb exchange of longitudinally polarized photons. It is shown that the O(α) contributions are of order α in size rather than α/π. The vacuum polarization contributions to the O(α) hyperfi...
We show that in string theory or supergravity with supersymmetry breaking through combined F-terms and Fayet-Iliopoulos D-terms, the masses for charged scalars and fermions can be hierarchically split. The mass scale for the gauginos and higgsinos of the MSSM is controlled by the gravitino mass m3/2, as usual, while the scalars get extra contributions from the D-terms of extra abelian U(1) fact...
As part of a new heavy ion preinjector that will supply beams for the Relativistic Heavy Ion Collider and the National Aeronautics and Space Administration Space Radiation Laboratory, construction of a new electron beam ion source (EBIS) is now being completed. This source, based on the successful prototype Brookhaven National Laboratory Test EBIS, is designed to produce milliampere level curre...
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