Results 231 to 240 of about 48,623 (264)
Some of the next articles are maybe not open access.
PRIMORDIAL STRANGE QUARK MATTER
International Journal of Modern Physics E, 2011Strange quark nuggets (SQNs) could be the relics of the cosmological QCD phase transition, and they could very likely be the candidate of cold dark matter if survived the cooling of the later Universe, although the formation and evolution of these SQNs depend on the physical state of the hot QGP (quark-gluon plasma) phase and the state of cold quark ...
XIAOYU LAI, RENXIN XU
openaire +1 more source
Strange quark matter and compact stars [PDF]
Progress in Particle and Nuclear Physics, 2005 Astrophysicists distinguish between three different types of compact stars. These are white dwarfs, neutron stars, and black holes. The former contain matter in one of the densest forms found in the Universe which, together with the unprecedented progress in observational astronomy, make such stars superb astrophysical laboratories for a broad range of
exaly +5 more sources
Neutrino emissivity of strange quark matter
Physical Review D, 1990We study the neutrino emissivity of three-flavor degenerate "strange matter" by using a thermodynamic potential calculated to second order in ${\ensuremath{\alpha}}_{c}$ and by solving the Gell-Mann-Low equation for the screened charge ${\ensuremath{\alpha}}_{c}$. No reduction in the emissivity at higher densities is found.
, Goyal, , Anand
openaire +2 more sources
Journal of Physics G: Nuclear and Particle Physics, 2002
This conference opening talk presents a short review of recent progress in strangeness production systematics, notably the topic of energy dependence, up to RHIC. The data are confronted with the statistical hadronization model which helps to answer the question of their connection to the parton–hadron phase transformation occuring at upper SPS ...
openaire +1 more source
This conference opening talk presents a short review of recent progress in strangeness production systematics, notably the topic of energy dependence, up to RHIC. The data are confronted with the statistical hadronization model which helps to answer the question of their connection to the parton–hadron phase transformation occuring at upper SPS ...
openaire +1 more source
Journal of Physics G: Nuclear and Particle Physics, 1999
The physics of strange quark matter (SQM) searches is reviewed. Theoretical considerations about the creation and stability of SQM are summarized. Experimental techniques looking for the existence of SQM covering the observation of cosmological signals and cosmic radiation are discussed and examples of investigating rock samples and other terrestrial ...
openaire +1 more source
The physics of strange quark matter (SQM) searches is reviewed. Theoretical considerations about the creation and stability of SQM are summarized. Experimental techniques looking for the existence of SQM covering the observation of cosmological signals and cosmic radiation are discussed and examples of investigating rock samples and other terrestrial ...
openaire +1 more source
Strange-quark content of the proton
Physical Review D, 1988The usual evidence for the strange-quark content of the proton comes from chiral-symmetry breaking as measured in the pion-nucleon sigma term, which involves the proton matrix elements of the scalar-quark densities. Another piece of evidence for it, which involves the proton matrix elements of the pseudoscalar-quark densities, is presented.
, Riazuddin, , Fayyazuddin
openaire +2 more sources
Current divergences and current quark masses. I: Non-strange and strange quarks
Journal of Physics G: Nuclear and Particle Physics, 1989The authors use current divergence constraints to determine the non-strange and strange current quark masses. Assuming PCAC from meson transitions and SU(6) valence wavefunctions for baryon transitions, they obtain nine independent equations which consistently suggest that the non-strange current mass is m approximately=70 MeV and the strange current ...
M D Scadron, N H Fuchs
openaire +1 more source
Space-Time Geometry of Quark and Strange Quark Matter
Chinese Journal of Astronomy and Astrophysics, 2007We study quark and strange quark matter in the context of general relativity. For this purpose, we solve Einstein's field equations for quark and strange quark matter in spherical symmetric space-times. We analyze strange quark matter for the different equations of state (EOS) in the spherical symmetric space-times, thus we are able to obtain the space-
Can Aktas, Can Aktas +1 more
openaire +2 more sources
AIP Conference Proceedings, 1992
We survey the field of strange particle nuclear physics, starting with the spectroscopy of strangeness S=−1 Λ hypernuclei, proceeding to an interpretation of recent data on S=−2 ΛΛ hypernuclear production and decay, and finishing with some speculations on the production of multi‐strange nuclear composites (hypernuclei or ‘‘strangelets’’) in ...
openaire +1 more source
We survey the field of strange particle nuclear physics, starting with the spectroscopy of strangeness S=−1 Λ hypernuclei, proceeding to an interpretation of recent data on S=−2 ΛΛ hypernuclear production and decay, and finishing with some speculations on the production of multi‐strange nuclear composites (hypernuclei or ‘‘strangelets’’) in ...
openaire +1 more source
AIP Conference Proceedings, 2007
If strange quark matter is absolutely stable, some neutron stars may be strange quark stars. Strange quark stars are usually assumed to have a simple liquid surface. We show that if the surface tension of droplets of quark matter in the vacuum is sufficiently small, droplets of quark matter on the surface of a strange quark star may form a solid crust ...
openaire +1 more source
If strange quark matter is absolutely stable, some neutron stars may be strange quark stars. Strange quark stars are usually assumed to have a simple liquid surface. We show that if the surface tension of droplets of quark matter in the vacuum is sufficiently small, droplets of quark matter on the surface of a strange quark star may form a solid crust ...
openaire +1 more source