Results 231 to 240 of about 48,916 (267)

Radioactivity in strange quark matter

Physical Review C, 1987
We develop a mass formula for finite lumps of strange quark matter near flavor equilibrium. Our Fermi-gas model includes surface tension and Coulomb energy but not quantum-chromodynamic radiative corrections. Assuming strange matter is stable in bulk, we investigate the radioactive decays of finite strangelets (clumps of strange matter with baryon ...
, Berger, , Jaffe
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Properties of strange quark matter

Physical Review D, 1993
Assuming that the novel nuclei of [ital A]=370 amu and [ital Z]=14 recently observed in high-energy cosmic rays are really strange quark matter (SQM), the relationship between parameters describing SQM is discussed and the mass formula for SQM is derived by requiring that it yields the observed value of [ital A]=370 amu and [ital Z]=14.
, Kasuya, , Saito, , Yasuè
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Strange quarks in the deuteron

Physical Review D, 1990
We consider elastic electroweak lepton-deuteron scattering as a means to extract information on both vector and axial-vector isoscalar currents, and thus the strange- (and heavier-) quark content of the deuteron. Parity violation in electron-deuteron scattering is examined in some detail. Numerical estimates are made, using a simple model when required,
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PRIMORDIAL STRANGE QUARK MATTER

International Journal of Modern Physics E, 2011
Strange 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
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Neutrino emissivity of strange quark matter

Physical Review D, 1990
We 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
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Strange quarks in matter

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 ...
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Strange quark matter searches

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 ...
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Strange-quark content of the proton

Physical Review D, 1988
The 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
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Current divergences and current quark masses. I: Non-strange and strange quarks

Journal of Physics G: Nuclear and Particle Physics, 1989
The 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
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Space-Time Geometry of Quark and Strange Quark Matter

Chinese Journal of Astronomy and Astrophysics, 2007
We 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, Ihsan Yilmaz, Ihsan Yilmaz   +1 more
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