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Showing 1 to 20 of 37 for “"Dense matter"”.
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Neutrino processes in dense matter
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-16T16:30:51Z No. of bitstreams: 1 1981_iwamoto.pdf: 4398216 bytes, checksum: ca09788c9a5f5d0c309003977f8ed2ab (MD5)
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Nuclear physics and dense matter
Crucial to understanding the properties of dense matter in supernova explosions and neutron stars is determining the role of the nuclei present in such matter. Because many of the properties of the matter do not depend strongly on the fine details of nuclear structure, the liquid drop model of the …
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Electronic structure of warm dense matter
The electronic structure of warm dense matter has been investigated using absorption spectroscopy by looking at shifts in the K-edge position of shocked compressed parylene-C and potassium chloride. The Vulcan laser facility was used to drive double sided shocks into the embedded chlorine samples …
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XUV probing of warm dense matter
… to test models of free-free absorption in warm dense aluminium by Iglesias, Shaffer et al. and Hollebon et al., Radiative heating using L-shell x-rays from a high temperature palladium plasma was used to heat an aluminium foil to a temperature of 0.9±0.23eV. Before the sample could significantly …
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Variational Theory of Hot Dense Matter
We develop a variational theory of hot nuclear matter in neutron stars and supernovae. It can also be used to study charged, hot nuclear matter which may be produced in heavy-ion collisions. This theory is a generalization of the variational theory of cold nuclear and neutron star matter based on …
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Dense matter in effective meson theories
In the limit of a large number of colors, quantum chromodynamics is thought to reduce to a theory in which mesons are the relevant degrees of freedom. Baryons emerge as topological solitons in such theories. Nucleon properties are well reproduced within these models--the agreement with experiment …
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Neutrino emission and pion condensation in dense matter
… the description of neutrino pair emission in dense matter in terms of the correlation functions of the background matter, and consider in detail, at densities and temperatures expected for neutron stars, the neutrino··pair bremsstrahlung emission from electrons in a static lattice and the one …
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Dense matter and the compressible liquid drop model
Restriction data tranferred 2014-07-01T11:18:36-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission
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Dense matter and the compressible liquid drop model
We explore the equation of state of dense matter at densities up to nuclear matter density using the compressible liquid drop model. We consider two primary areas of application: the collapsing core of supernovae and the inner crust of a cooled neutron star. The model is generalized to include a …
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EXPERIMENTALLY MEASURING THERMAL CONDUCTIVITY IN WARM DENSE MATTER USING FRESNEL DIFFRACTIVE RADIOGRAPHY
… well known, and for conditions known as warm dense matter - found most commonly inside large planets and dwarf stars - we require experimental benchmarking to ensure accurate theoretical and computational work in this regime. This dissertation details the development of the Fresnel Diffractive …
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Probing the phases of cold ultra-dense matter using neutron star physics
Matter at very high densities and low temperatures is predicted to be in a “color superconducting” phase. At high enough densities, quark matter is in the Color-Flavor-Locked: CFL) phase, but the possible phases of matter at intermediate densities are unknown. Since the density at the core of a …
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Neutrino Emission and Pion Condensation in Dense-Matter. Part I. Neutrino Pair Emission in Dense-Matter: A Many-Body Approach. Part Ii. Pion Condensation in Nuclear and Neutron Star Matter
Made available in DSpace on 2015-05-12T22:39:00Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7412016.PDF: 3964047 bytes, checksum: 93994b3ac877ca14f290640ac8512653 (MD5) Previous issue date: 1973
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Determing the Properties of Dense Matter: Superconductivity, Bulk Viscosity, and Light Reflection in Compact Stars
… dissertation, we investigate the properties of matter, denser than nuclei, that exists inside compact stars. First, we examine a mixed superfluid/superconductor system, which likely occurs in neutron star cores. We derive an effective theory of Cooper pair quasiparticles from a microscopic …
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Extending the dielectric formalism in warm dense matter: collisions, dynamic structure factors, and stopping powers
Warm dense matter (WDM) is characterized as having temperatures above about 11 605 K and roughly solid densities. Occupying a region in phase space somewhere between hot, sparse plasmas and cool, condensed matter, WDM conditions exist within astrophysical objects, and are created for fractions of a …
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Computational study of hot electron generation and energy transport in intense laser produced hot dense matter
… high temperature of keV (1 keV ~ 11,000,0000 K). Matter in such extreme states is par- ticularly interesting for (HED) physics such as laboratory studies of planetary and stellar astrophysics, laser fusion research, pulsed neutron source etc. To date however, the physics in HED plasma, especially, …
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Understanding microscopic physics through gravity promises and challenges for properties of dense matter and mirror matter detection
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Neutrino Transport in Young Neutron Stars
… coefficients of degenerate neutrinos in dense matter taking into account both absorption and scattering of neutrinos by nucleons. Exact solutions of the transport equation are used, and the effect of neutron - proton interactions on the composition of the matter is allowed for. I consider …
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Effects of Spin on Neutron-Star Observations
… provide a natural way to test models of cold dense matter and theories of gravity. In order to correctly interpret these measurements, accurate models taking into account the special and general relativistic effects arising from the strong gravity and fast spin of these sources are necessary. …
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D meson reconstruction at star using the silicon vertex tracker (svt)
… the Relativistic Heavy Ion Collider a hot and dense matter is produced in Au+Au collisions at sqrt(sNN) = 200 GeV/c. This matter exhibits features of a new deconfined partonic matter, called the Quark-Gluon Plasma. Charm quarks are expected to be produced predominately from the initial gluon …
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Extreme ultraviolet probing of laser ablation
… the POLLUX code show how the presence of warm, dense material leads to strong absorption of the probe beam. Methods using both broad and narrowband EUV wavelength probes for benchmarking theoretical models of opacity are presented. An iron opacity experiment conducted at the Bhabha Atomic …
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