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Nuclear matter
About: Nuclear matter is a research topic. Over the lifetime, 10180 publications have been published within this topic receiving 248261 citations.
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TL;DR: In this article, a folding analysis of the elastic α+12C, 40Ca and 90Zr scattering data at Elab = 59.1 −172.5 MeV has been performed using effective density dependent NN interactions based on the G-matrix elements of the Reid- and Paris NN potentials.
107 citations
TL;DR: For collisions involving more than approximately 80 participant nucleons, it is found that an extra suppression is present and this result is in qualitative agreement with previous Pb-Pb measurements by the NA50 experiment.
Abstract: The NA60 experiment studies muon pair production at the CERN Super Proton Synchrotron. In this Letter we report on a precision measurement of J/{psi} in In-In collisions. We have studied the J/{psi} centrality distribution, and we have compared it with the one expected if absorption in cold nuclear matter were the only active suppression mechanism. For collisions involving more than {approx}80 participant nucleons, we find that an extra suppression is present. This result is in qualitative agreement with previous Pb-Pb measurements by the NA50 experiment, but no theoretical explanation is presently able to coherently describe both results.
107 citations
TL;DR: In this paper, the same mechanism which leads to massless baryons in these models induces a breakdown of translational invariance at any finite density, in the chiral limit baryonic matter is characterized by a spatially varying chiral angle with a wave number depending only on the density.
Abstract: We study two-dimensional, large N field theoretic models (Gross-Neveu model, 't Hooft model) at finite baryon density near the chiral limit. The same mechanism which leads to massless baryons in these models induces a breakdown of translational invariance at any finite density. In the chiral limit baryonic matter is characterized by a spatially varying chiral angle with a wave number depending only on the density. For small bare quark masses a sine-Gordon kink chain is obtained which may be regarded as the simplest realization of the Skyrme crystal for nuclear matter. Characteristic differences between confining and non-confining models are pointed out.
106 citations
TL;DR: Several different approaches for measuring the masses and radii of neutron stars have been tried or proposed, including analyzing the X-ray fluxes and spectra of the emission from neutron stars in quiescent low-mass Xray binary systems and thermonuclear burst sources as mentioned in this paper.
Abstract: Precise and reliable measurements of the masses and radii of neutron stars with a variety of masses would provide valuable guidance for improving models of the properties of cold matter with densities above the saturation density of nuclear matter. Several different approaches for measuring the masses and radii of neutron stars have been tried or proposed, including analyzing the X-ray fluxes and spectra of the emission from neutron stars in quiescent low-mass X-ray binary systems and thermonuclear burst sources; fitting the energy-dependent X-ray waveforms of rotation-powered millisecond pulsars, burst oscillations with millisecond periods, and accretion-powered millisecond pulsars; and modeling the gravitational radiation waveforms of coalescing double neutron star and neutron star - black hole binary systems. We describe the strengths and weaknesses of these approaches, most of which currently have substantial systematic errors, and discuss the prospects for decreasing the systematic errors in each method.
105 citations