Non Equilibrium Qcd Of High Energy Multi Gluon Dynamics
DOWNLOAD
Download Non Equilibrium Qcd Of High Energy Multi Gluon Dynamics PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Non Equilibrium Qcd Of High Energy Multi Gluon Dynamics book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Non Equilibrium Qcd Of High Energy Multi Gluon Dynamics
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1996
Non Equilibrium Qcd Of High Energy Multi Gluon Dynamics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
A non-equilibrium QCD description of multiparticle dynamics in space-time is of both fundamental and phenomenological interest. Here the authors discusses an attempt to derive from first principles, a real-time formalism to study the dynamical interplay of quantum and statistical-kinetic properties of non-equilibrium multi-parton systems produced in high-energy QCD processes. The ultimate goal (from which one is still far away) is to have a practically applicable description of the space-time evolution of a general initial system of gluons and quarks, characterized by some large energy or momentum scale, that expands, diffuses and dissipates according to the self- and mutual-interactions, and eventually converts dynamically into final state hadrons. For example, the evolution of parton showers in the mechanism of parton-hadron conversion in high-energy hadronic collisions, or, the description of formation, evolution and freezeout of a quark-gluon plasma, in ultra-relativistic heavy-ion collisions.
Non Perturbative Particle Theory And Experimental Tests Proceedings Of The Johns Hopkins Workshop On Current P
DOWNLOAD
Author : Otto Nachtmann
language : en
Publisher: World Scientific
Release Date : 1997-08-12
Non Perturbative Particle Theory And Experimental Tests Proceedings Of The Johns Hopkins Workshop On Current P written by Otto Nachtmann and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-08-12 with categories.
The twentieth Johns Hopkins Workshop on current problems in particle theory took place in Heidelberg. The topic of the workshop was chosen in view of the phantastic success enjoyed by the standard model of electroweak and strong interactions.Until today, no significant deviations from the predictions of the standard model have been observed. However, precision tests have been dominantly performed in the high-energy domain, where the QCD coupling constant is small enough to allow for a perturbative treatment of the strong interaction. It is therefore very important to consider also the low-energy region for which non-perturbative aspects of QCD come into play.
Non Equilibrium Hydrodynamics Of The Quark Gluon Plasma
DOWNLOAD
Author : Nopoush Mohammad
language : en
Publisher:
Release Date : 2019
Non Equilibrium Hydrodynamics Of The Quark Gluon Plasma written by Nopoush Mohammad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Relativistic heavy-ion collision experiments are currently the only controlled way to generate and study matter in the most extreme temperatures (T ~10e+12 K). At these temperatures matter undergoes a phase transition to an exotic phase of matter called the quark-gluon plasma (QGP). The QGP is an extremely hot and deconfined phase of matter where sub-nucleonic constituents (quarks and gluons) are asymptotically free. The QGP phase is important for different reasons. First of all, our universe existed in this phase up to approximately t ~10e-5 s after the Big Bang, before it cools down sufficiently to form any kind of quark bound states. In this regard, studying the QGP provides us with useful information about the dynamics and evolution of the early universe. Secondly, high-energy collisions serve as a microscope with a resolution on the order of 10e-15 m (several orders of magnitude more powerful than the best ever developed electron microscopes). With this fantastic probe, penetrating into the detailed structure of nucleons, and the discovery of new particles and fundamental phases are made possible. The dynamics of the QGP is based on quantum chromodynamics (which governs the interactions of quarks and gluons) and the associated force is "strong force". The strong collective behaviors observed experimentally inspired people to use dissipative fluid dynamics to model the dynamics of the medium. The QGP produced in heavy-ion collisions, experiences strong longitudinal expansion at early times which leads to a large momentum-space anisotropy in the local rest frame distribution function. The rapid longitudinal expansion casts doubt on the application of standard viscous hydrodynamics (vHydro) models, which lead to unphysical predictions such as negative pressure, negative one-particle distribution function, and so on. Anisotropic hydrodynamics (aHydro) takes into account the strong momentum-space anisotropy in the leading order distribution function in a consistent and systematic way. My dissertation is about the formulation and application of anisotropic hydrodynamics as a successful non-equilibrium hydrodynamics model for studying the QGP. For this purpose, I introduce the basic conformal anisotropic hydrodynamics formalism and then explain the ways we included realistic features (bulk degree of freedom, quasiparticle implementation of realistic equation of state, more realistic collisional kernel), to make it a suitable hydrodynamics model for studying the QGP generated in heavy-ion collisions. For verification of our model we have compared the evolution of model parameters predicted by aHydro and vHydro, with exact analytical solution of the Boltzmann equation. For this purpose, we have studied the evolution of the system under conformal Gubser flow using the aHydro model. By transforming to de Sitter spacetime (a non-trivial curved coordinate system) we simplified the dynamics to 0+1d spacetime. Comparisons with exact solutions show that aHydro better reproduces the exact solutions than the best available vHydro models. However, the system is not conformal and the aHydro needed to be improved to include a realistic prescription for the equation of state which takes care of non-ideal effect in the dynamics. In the framework of finite temperature eld theory the equation of state is provided by numerical calculation of QCD partition function using lattice QCD (LQCD), whereas, devising an equation of state for aHydro model is challenging because therein we deal with anisotropic pressures. In the next step of my research, we have designed a novel method for implementing the realistic equation of state (provided by lattice QCD) in the aHydro formalism. This model, called the quasiparticle aHydro model, integrates the non-conformal effects in the aHydro model. The non-conformal effects are due to strong interactions of plasma constituents which leads to temperature-dependence of the particles' effective mass in the system. Based on the quasiparticle picture, we have developed the quasiparticle aHydro (aHydroQP) model which has all necessary components for studying the phenomenology of the QGP created in heavy-ion collisions. We have then compared the phenomenological predictions of the aHydroQP model with experimental observations. Comparisons illustrate a high level of consistency between our model and the experimental data. The last two chapters are about two applications of the aHydro model to field-theoretical measurables in the QGP. In these chapters, we have calculated the quark self-energy in an anisotropic QGP. The quark self-energy is important because it encodes the way quarks gain interactional mass while in the hot QGP. I also have presented the calculation of gluon self-energy in hard loop approximation in an anisotropic QGP.The gluon self-energy is important since it is related to heavy-quark potential and heavy quarkonium suppression. Heavy quarkonia bound states, besides theoretical importance, serve as a thermometer for the QGP.
Relativistic Dissipative Hydrodynamic Description Of The Quark Gluon Plasma
DOWNLOAD
Author : Akihiko Monnai
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-01-20
Relativistic Dissipative Hydrodynamic Description Of The Quark Gluon Plasma written by Akihiko Monnai and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-20 with Science categories.
This thesis presents theoretical and numerical studies on phenomenological description of the quark–gluon plasma (QGP), a many-body system of elementary particles. The author formulates a causal theory of hydrodynamics for systems with net charges from the law of increasing entropy and a momentum expansion method. The derived equation results can be applied not only to collider physics, but also to the early universe and ultra-cold atoms. The author also develops novel off-equilibrium hydrodynamic models for the longitudinal expansion of the QGP on the basis of these equations. Numerical estimations show that convection and entropy production during the hydrodynamic evolution are key to explaining excessive charged particle production, recently observed at the Large Hadron Collider. Furthermore, the analyses at finite baryon density indicate that the energy available for QGP production is larger than the amount conventionally assumed.
Quark Gluon Plasma Five
DOWNLOAD
Author :
language : en
Publisher: World Scientific
Release Date : 2016
Quark Gluon Plasma Five written by and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Science categories.
"This is the fifth volume in the series on the subject of quark-gluon plasma, a unique phase created in heavy-ion collisions at high energy. It contains review articles by the world experts on various aspects of quark-gluon plasma taking into account the advances driven by the latest experimental data collected at both the Relativistic Heavy-Ion Collider (RHIC) and the Large Hadron Collider (LHC). The articles are pedagogical and comprehensive which can be helpful for both new researchers entering the field as well as the experienced physicists working on the subject."--
Non Perturbative Particle Theory And Experimental Tests
DOWNLOAD
Author : Otto Nachtmann
language : en
Publisher:
Release Date : 1997
Non Perturbative Particle Theory And Experimental Tests written by Otto Nachtmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Electroweak interactions categories.
Quark Gluon Plasma 3
DOWNLOAD
Author : Rudolph C. Hwa
language : en
Publisher: World Scientific
Release Date : 2004
Quark Gluon Plasma 3 written by Rudolph C. Hwa and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Science categories.
Annotation. Text reviews the major topics in Quark-Gluon Plasma, including: the QCD phase diagram, the transition temperature, equation of state, heavy quark free energies, and thermal modifications of hadron properties. Includes index, references, and appendix. For researchers and practitioners.
Particle Production Spanning Mev And Tev Energies
DOWNLOAD
Author : W. Kittel
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Particle Production Spanning Mev And Tev Energies written by W. Kittel and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Particle production is an important topic in nuclear and particle physics. At high energies, particle production is considered to proceed via parton branching and subsequent fragmentation into hadrons. The study of the dynamics of this process and the study of the structure of hadrons in the context of quantum chromodynamics (QCD) belong to the challenges of the standard model of elementary particle physics, requiring new, nonperturba tive approaches in field theory. Within a nucleus, many-body dynamics is important and particle production may be used to determine many features of a non-equilibrium quantum system at low or high temperatures. At this Advanced Study Institute the different aspects of particle pro duction were expanded upon in a series of lectures given by experts in their fields, covering topics ranging from near-threshold meson production in proton-proton collisions to correlations in multi-GeV jet fragmentation in high-energy scattering processes and signals of a quark-gluon plasma formed in ultra-relativistic heavy-ion collisions. Strong emphasis was placed not only on state of the art research, but also on the necessary physics back ground. The lectures were supplemented by problem sets and discussion sessions. There was also time for students to present short contributions on their research.
Quark Gluon Plasma 4
DOWNLOAD
Author : Rudolph C. Hwa
language : en
Publisher: World Scientific
Release Date : 2010
Quark Gluon Plasma 4 written by Rudolph C. Hwa and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Science categories.
This is a review volume containing articles written by experts on current theoretical topics in the subject of Quark-Gluon Plasma created in heavy-ion collisions at high energy. It is the fourth volume in the series with the same title sequenced numerically. The articles are written in a pedagogical style so that they can be helpful to a wide range of researchers from graduate students to mature physicists who have not worked previously on the subject. A reader should be able to learn from the reviews without having extensive knowledge of the background literature.
Non Equilibrium Dynamics In Finite Temperature Qcd
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1988
Non Equilibrium Dynamics In Finite Temperature Qcd written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
An overview on the status of kinetic theory approaches to non-equilibrium dynamics in finite temperature QCD is given, and results and difficulties in determining the transport properties and equilibration time scales for a quark gluon plasma produced in nuclear collisions are discussed. 15 refs.