Effects Of Mean Field And Softening Of Equation Of State On Elliptic Flow In Au Au Collisions At Snn
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Effects Of Mean Field And Softening Of Equation Of State On Elliptic Flow In Au Au Collisions At Snn
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Author :
language : en
Publisher:
Release Date : 2018
Effects Of Mean Field And Softening Of Equation Of State On Elliptic Flow In Au Au Collisions At Snn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Abstract: We perform a systematic study of elliptic flow ( v 2 ) in Au+Au collisions at s NN = 5 GeV by using a microscopic transport model, JAM. The centrality, pseudorapidity, transverse momentum and beam energy dependence of v 2 for charged as well as identified hadrons are studied. We investigate the effects of both the hadronic mean-field and the softening of equation of state (EoS) on elliptic flow. The softening of the EoS is realized by imposing attractive orbits in two body scattering, which can reduce the pressure of the system. We found that the softening of the EoS leads to the enhancement of v 2, while the hadronic mean-field suppresses v 2 relative to the cascade mode. It indicates that elliptic flow at high baryon density regions is highly sensitive to the EoS and the enhancement of v 2 may probe the signature of a first-order phase transition in heavy-ion collisions at beam energies of a strong baryon stopping region.
Comprehensive Dissertation Index
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Author :
language : en
Publisher:
Release Date : 1989
Comprehensive Dissertation Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Dissertations, Academic categories.
Momentum Dependent Mean Field And The Nuclear Equation Of State
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Author :
language : en
Publisher:
Release Date : 1991
Momentum Dependent Mean Field And The Nuclear Equation Of State written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
We study the momentum distribution of nucleons in nuclear matter and calculate the incompressibility analytically in the presence of a momentum-dependent mean field. An equivalent mass is introduced for calculational purposes. The effect of the momentum-dependence of the mean field on the hadronic equation of state is examined and the conditions for equilibrium with a quark phase described by a bag model equation of state are investigated. 12 refs., 4 figs.
An Exploratory Study Of The Nuclear Equation Of State And The Symmetry Energy At Supra Saturation Densities Using Au Au Collisions
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Author : Peter Z. Wu
language : en
Publisher:
Release Date : 2011
An Exploratory Study Of The Nuclear Equation Of State And The Symmetry Energy At Supra Saturation Densities Using Au Au Collisions written by Peter Z. Wu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
A better understanding of the density dependence of the nuclear equation of state (EOS) of isospin asymmetric nuclear matter, particularly at high den- sities, is crucial for interpreting many astrophysical phenomena e.g. neutron stars and supernovae, where model descriptions require inputs for the behaviour of the EOS with extreme values of the symmetry energy. The nuclear EOS is a fundamental property of nuclear matter, which describes the relationships between its thermodynamic properties but is insufficiently constrained by ex- periment. Indeed the equation of state of asymmetric nuclear matter is poorly understood, largely due to a lack of knowledge regarding the density depen- dence of the nuclear symmetry energy term, especially at densities considerably greater than that of normal nuclear matter. Theoretical studies based on either microscopic many-body theories or phenomenological approaches give widely divergent predictions of this quantity. While considerable progress has been achieved over recent years in determining the symmetry energy at saturation and sub-saturation nuclear matter densities, much more work is still needed to probe its behaviour at supra-saturation densities. Until recently, there has been little possibility to study experimentally the density dependence of the symmetry energy. This situation is changing dramatically as new radioactive beam facilities become operational. These facilities promise to revolutionise our knowledge of the equation of state of asymmetric nuclear matter. Heavy- ion reactions induced by neutron-rich nuclei have thus a crucial role to play in this field of research. They provide a unique tool for obtaining information concerning the high-density behaviour of the symmetry energy in a laboratory environment. This thesis reports on an experimental feasibility study into the use of observables of collective flow measured in relativistic heavy-ion collisions to investigate the symmetry energy at supra-saturation densities.
An Introduction To Equations Of State
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Author : Shalom Eliezer
language : en
Publisher:
Release Date : 1986
An Introduction To Equations Of State written by Shalom Eliezer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Science categories.
The equation of state was originally developed for ideal gases, and proved central to the development of early molecular and atomic physics. Increasingly sophisticated equations of state have been developed to take into account molecular interactions, quantization, relativistic effects, etc. Extreme conditions of matter are encountered both in nature and iq the laboratory, for example in the centres of stars, in relativistic collisions of heavy nuclei, in inertial confinement fusion (where temperatures of IO'K and pressures of several million atmospheres can be achieved). A sound knowledge of the equation of state is a prerequisite to an understanding of processes at very high temperatures and pressures.
A Simple Method For The Calculation Of The Equation Of State
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Author : Maria Goeppert Mayer
language : en
Publisher:
Release Date : 1949
A Simple Method For The Calculation Of The Equation Of State written by Maria Goeppert Mayer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1949 with Equations of state categories.
The Nuclear Equation Of State
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Author :
language : en
Publisher:
Release Date : 1986
The Nuclear Equation Of State written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
The role of the nuclear equation of state in determining the fate of the collapsing cores of massive stars is examined in light of both recent theoretical advances in this subject and recent experimental measurements with relativistic heavy ions. The difficulties existing in attempts to bring the softer nuclear matter apparently required by the theory of Type II supernovae into consonance with the heavy ion data are discussed. Relativistic mean field theory is introduced as a candidate for derivation of the equation of state, and a simple form for the saturation compressibility is obtained. 28 refs., 4 figs., 1 tab.
Impact Parameter Dependence Of The Nuclear Modification Of J Psi Production In D Au Collisions At Snn
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Author :
language : en
Publisher:
Release Date : 2012
Impact Parameter Dependence Of The Nuclear Modification Of J Psi Production In D Au Collisions At Snn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.