698 Matching Results

Search Results

Results: 1 - 24 next
open access

Strange Goings on in Quark Matter.

Description: We review recent work on how the superfluid state of three flavor quark matter is affected by non-zero quark masses and chemical potentials. The study of hadronic matter at high baryon density has recently attracted a lot of interest. At zero baryon density chiral symmetry is broken by a quark-anti-quark condensate. At high density condensation in the quark-anti-quark channel is suppressed. Instead, attractive interactions in the color anti-symmetric quark-quark channel favor the formation of d… more
Date: June 5, 2001
Creator: Schafer, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

(Search for strange quark matter and antimatter produced in high energy heavy ion collisions)

Description: This document describes the development and progress of our group's research program in high energy heavy ion physics. We are a subset of the Yale experimental high energy physics effort (YAUG group) who became interested in the physics of high energy heavy ions in 1988. Our interest began with the possibility of performing significant searches for strange quark matter. As we learned more about the subject and as we gained experimental experience through our participation in AGS experiment 814,… more
Date: January 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[Search for strange quark matter and antimatter produced in high energy heavy ion collisions]. Technical progress report for the period April 1990--March 1992

Description: This document describes the development and progress of our group`s research program in high energy heavy ion physics. We are a subset of the Yale experimental high energy physics effort (YAUG group) who became interested in the physics of high energy heavy ions in 1988. Our interest began with the possibility of performing significant searches for strange quark matter. As we learned more about the subject and as we gained experimental experience through our participation in AGS experiment 814,… more
Date: July 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quark matter in astrophysics and cosmology

Description: We dicuss the role of quark matter in astrophysics and cosmology. The implications of the dynamics of the quark-hadron phase transition in the early universe for the element abundances from big bang nucleosynthesis and the composition of the dark matter in the universe are addressed. We discuss the possibility of deciding on an equation of state for high density matter by observing the cooling of a neutron star remnant of SN1987A. Quark matter models for the Centauros events, Cygnus X-3 cosmic … more
Date: October 1, 1987
Creator: Olinto, Angela V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Quark matter in the Hartree-Fock approximation

Description: An equation of state is computed for quark matter interacting through a phenomenological potential in the Hartree-Fock approximation. It is shown that for color-independent confining potentials, it can be approximated by the Hartree result and leads to a first order mass phase transition. For color-dependent confining potentials, a phase transition from a Fermi sphere to a Fermi shell is possible.
Date: July 1, 1987
Creator: Grassi, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quark matter transition in the baryon rich domain

Description: The implications of nuclear matter equation of state measurements for a quark matter phase transition are discussed. The possibility of detecting such a phase transition by looking for changes in the pattern of collective flow associated with heavy ion collisions is pointed out. 18 references, 8 figures, 3 tables.
Date: December 1, 1984
Creator: Chapline, G.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nuclear-like states of quark matter

Description: In a world with only one flavor of light quark, QCD suggests that the low energy states of quark matter are similar to nuclei, but are not well represented as collections of baryons. Except for the existence of open nucleon channels, the same would be true for the actual, two-light-flavor world. 3 refs.
Date: January 1, 1986
Creator: Goldman, T.; Schmidt, K. E. & Stephenson, G. J. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

RHIC and Quark Matter: a proposed heavy ion collider at Brookhaven National Laboratory

Description: For some time there had been strong interest at Brookhaven in exploiting the existence of the Colliding Beam Accelerator, CBA (nee ISABELLE), for the generation of heavy ion collisions at very high energies. Now the opportunity arose to consider the design of a dedicated heavy ion collider which could take advantage of the work already invested in the CBA project. In its report the Working Group recommended a top energy of at least 50 + 50 GeV/amu, emphasizing the need to cover a continuous ran… more
Date: January 1, 1984
Creator: Ludlam, T.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Neutron stars and strange matter

Description: The likelihood is investigated that quark matter with strangeness of order unity resides in neutron stars. In the strong coupling regime near rho/sub 0/ this is found to be unlikely. Considering higher densities where perturbative expansions are used, we find a lower bound to be at 7rho/sub 0/ for the transition density. This is higher than the inferred density of observed neutron stars, and thus the transition to quark matter is precluded. 15 refs., 3 figs.
Date: January 1, 1986
Creator: Cooperstein, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Current trends in non-accelerator particle physics: 1, Neutrino mass and oscillation. 2, High energy neutrino astrophysics. 3, Detection of dark matter. 4, Search for strange quark matter. 5, Magnetic monopole searches

Description: This report is a compilation of papers reflecting current trends in non-accelerator particle physics, corresponding to talks that its author was invited to present at the Workshop on Tibet Cosmic Ray Experiment and Related Physics Topics held in Beijing, China, April 4--13, 1995. The papers are entitled `Neutrino Mass and Oscillation`, `High Energy Neutrino Astrophysics`, `Detection of Dark Matter`, `Search for Strange Quark Matter`, and `Magnetic Monopole Searches`. The report is introduced by… more
Date: July 1, 1995
Creator: He, Yudong
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Interpretation of rapidly rotating pulsars

Description: The minimum possible rotational period of pulsars, which are interpreted as rotating neutron stars, is determined by applying a representative collection of realistic nuclear equations of state. It is found that none of the selected equations of state allows for neutron star rotation at periods below 0.8--0.9 ms. Thus, this work strongly supports the suggestion that if pulsars with shorter rotational periods were found, these are likely to be strange-quark-matter stars. The conclusion that the … more
Date: August 5, 1992
Creator: Weber, F. & Glendenning, N. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Quark Matter 2001 - Final report [Program and list of poster presentations]

Description: The Fifteenth International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (QM2001) was held on Long Island, New York on January 15-20, 2001. The main site of the conference was the campus of the State University of New York at Stony Brook. The conference included an afternoon of parallel sessions and tours of the Relativistic Heavy Ion Collider facility at Brookhaven National Laboratory. There were nearly 700 paid attendees. The conference program and a list of poster exhibits is … more
Date: February 2002
Creator: Marx, Michael D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Progress in Finite Temperature Lattice Qcd.

Description: I review recent progress in finite temperature lattice calculations, including the determination of the transition temperature, equation of state, screening of static quarks and meson spectral functions.
Date: June 24, 2007
Creator: Petreczky, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

HYPER-STRANGE HADRONIC MATTER

Description: The binding energy of hyper-strange matter in the hadronic phase is calculated as a function of strangeness fraction in the mean field approximation to a relativistic field theory of matter. This is compared to a calculation of Chin and Kerman for the quark phase.
Date: November 1, 1980
Creator: Glendenning, Norman K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

String flip-flop and quark matter

Description: Quarks are bound by strings attached to them. When two strings come close, a rearrangement of connections takes place. This effect plays an important role in a dense ensemble of quarks, quark matter. A phase transition from nuclear matter to quark matter occurs at the nucleon density rho < 5 rho/sub 0/ where rho/sub 0/ is the density of the ordinary nuclear matter. The string flip-flop causes a new type of attractive interaction between hadrons at short distances or among quarks at high density… more
Date: unknown
Creator: Miyazawa, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interpretation of rapidly rotating pulsars

Description: The minimum possible rotational period of pulsars, which are interpreted as rotating neutron stars, is determined by applying a representative collection of realistic nuclear equations of state. It is found that none of the selected equations of state allows for neutron star rotation at periods below 0.8--0.9 ms. Thus, this work strongly supports the suggestion that if pulsars with shorter rotational periods were found, these are likely to be strange-quark-matter stars. The conclusion that the … more
Date: August 5, 1992
Creator: Weber, F. (Technische Univ. Muenchen, Garching (Germany). Inst. fuer Theoretische Physik) & Glendenning, N. K. (Lawrence Berkeley Lab., CA (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Correlations and Fluctuations: Status and Perspectives

Description: We will provide an overview of the physics which can be addressed by studying fluctuations and correlations in heavy ion collisions. Observables, which have been discussed in the literature will be briefly reviewed and put in context with experiment and information from Lattice QCD. Special attention will be given to the QCD critical point and the first order co-existence region.
Date: April 15, 2008
Creator: Koch, Volker & Koch, Volker
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen