43,086 research outputs found
Magnetic Component of Quark-Gluon Plasma
We describe recent developments of the "magnetic scenario" of sQGP. We show
that at there is a dense plasma of monopoles, capable of
supporting metastable flux tubes. Their existence allows to quantitatively
explained the non-trivial -dependence of the static potential
energy calculated on the lattice. By molecular dynamics simulation we derived
transport properties (shear viscosity and diffusion constant) and showed that
the best liquid is given by most symmetric plasma, with 50%-50% of electric and
magnetic charges. The results are close to those of the ``perfect liquid''
observed at RHIC.Comment: Contribution to the 20th International Conference on Nucleus Nucleus
Collisions (Quark Matter 2008
A study of the correlations between jet quenching observables at RHIC
Focusing on four types of correlation plots, vs. , vs. , vs. and vs.\
, we demonstrate how the centrality dependence of
\emph{correlations} between multiple jet quenching observables provide valuable
insight into the energy loss mechanism in a quark-gluon plasma. In particular
we find that a qualitative energy loss model gives a good description of
vs.\ only when we take and a medium
geometry generated by a model of the Color Glass Condensate. This same model also qualitatively describes the trigger dependence of
vs.\ data and makes novel predictions for the
centrality dependence for this vs.\ correlation.
Current data suggests, albeit with extremely large uncertainty, that
, a correlation that is difficult to reproduce in
current energy loss models.Comment: 6 pages, 6 figure
Introduction to the Special Issue on Mastery Motivation: Measures and Results across Cultures and Ages
Thermal capacitator design rationale. Part 1: Thermal and mechanical property data for selected materials potentially useful in thermal capacitor design and construction
The thermal properties of paraffin hydrocarbons and hydrocarbon mixtures which may be used as the phase change material (PCM) in thermal capacitors are discussed. The paraffin hydrocarbons selected for consideration are those in the range from C11H24 (n-Undecane) to C20H42 (n-Eicosane). A limited amount of data is included concerning other properties of paraffin hydrocarbons and the thermal and mechanical properties of several aluminum alloys which may find application as constructional materials. Data concerning the melting temperature, transition temperature, latent heat of fusion, heat of transition, specific heat, and thermal conductivity of pure and commercial grades of paraffin hydrocarbons are given. An index of companies capable of producing paraffin hydrocarbons and information concerning the availability of various grades (purity levels) is provided
The Revised Individualized Moderately Challenging Mastery Tasks for 15- to 48-month-old Children
Pairing in Asymmetrical Fermi Systems with Intra- and Inter-Species Correlations
We consider inter- and intra-species pairing interactions in an asymmetrical
Fermi system. Using equation of motion method, we obtain coupled mean-field
equations for superfluid gap functions and population densities. We construct a
phase diagram across BCS-BEC regimes. Due to intra-species correlations, the
BCS singlet superfluid state can sustain finite polarizations, . For larger
, we find phase separations in BCS and BEC regimes. A superfluid phase
exists for all deep in BEC regime. Our results may apply to pairing in
ultracold fermions, nuclear and quark matter physics.Comment: Contents revised. Added reference
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