Download or read book Microscopic Dynamical Studies of the Effects of the Nuclear Equation of State in Intermediate energy Heavy ion Collisions written by Robert John Lenk and published by . This book was released on 1990 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the role of the nuclear equation of state in intermediate-energy heavy-ion collisions using microscopic dynamical calculations. The relevant properties of the nuclear equation of state, and their manifestation in fragmentation reactions and Bevalac-energy collisions are reviewed. The available data on these collisions is summarized. We calculate the disassembly of hot charged classical drops that have an equation of state similar to that of nuclear matter. It is found that the region of adiabatic instability of the liquid-vapor phase transition is responsible for the rapid fragmentation of hot systems. For cooler drops, we find that this unstable region causes large deformations in the droplet shape that are exploited by the Coulomb force, resulting in fast binary and multiple fission decay modes. We discuss the use of the Vlasov-Nordheim equation in calculating heavy-ion collisions, and present a new method for solving the nuclear Vlasov equation with far greater accuracy than other existing methods. This method is used to study the role of the quantum Fermi motion is heavy-ion collisions. We also study the accuracy of Vlasov-Nordheim theory in the classical limit (i.e., Vlasov-Boltzmann) by comparing its predictions with the exact results of a classical model of heavy-ion collisions. It is shown that, although the Vlasov-Boltzmann theory can reproduce the general trends, it fails to reproduce the correct values of several specific observables. In this limited study, we do not find that the theory is very useful for deducing that incompressibility of matter from collision data.
Download or read book Effect of the Nuclear Equation of State on High energy Heavy ion Collisions written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of the nuclear equation of state on high-energy heavy-ion collisions is studied in two separate ways on the basis of conventional nuclear fluid dynamics. The equation of state has the property that the speed of sound approaches the speed of light in the limit of infinite compression. In the first way, nonrelativistic equations of motion are solved for various values of the nuclear compressibility coefficient for the expansion of spherically symmetric nuclear matter. The matter is initially compressed and excited in head-on collisions of equal targets and projectiles at a laboratory bombarding energy of 250 MeV/A. When the matter expands to a freezeout density, the remaining thermal energy is superimposed in terms of a Maxwell-Boltzmann distribution. The resulting energy distributions for different values of the compressibility coefficient are similar to one another, but they are significantly different from a Maxwell-Boltzmann distribution corresponding to entirely thermal energy and moderately different from the energy distribution corresponding to the Siemens-Rasmussen approximation. In the second way, relativistic equations of motion are solved numerically in three spatial dimensions for the reaction 2°Ne + 238U at a laboratory bombarding energy per nucleon of 393 MeV/A, both with and without a density isomer. The double-differential cross section d2sigma/dEd.cap omega. corresponding both to all impact parameters and to central collisions constituting 15% of the total cross section is computed. The results for the various equations of state are very similar to one another except for central collisions at laboratory angle theta = 30° and for both central collisions and all impact parameters at theta = 150°. In these cases, over certain ranges of energy, d2sigma/dEd.cap omega. is larger for the density isomer than for conventional equations of state. 8 figures.
Download or read book Heavy Ion Collisions At Intermediate Energy Theoretical Models written by Dasgupta Subal and published by World Scientific. This book was released on 2019-08-27 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ions are atoms or molecules stripped of their electrons, so they can be accelerated by electric fields. They can be made to hit each other with low energy, intermediate energy, high energy, or very high energy; each energy range seeks to investigate different aspects of hadronic physics. Intermediate-energy heavy ion collisions explore the nuclei far from stability valley, the incompressibility of nuclear matter, the liquid-gas phase transition in nuclear environment, the symmetry energy far from the normal density, and other phenomena. This has been an active field of research for last four decades.This is a book for entrants in the field. It is suitable as a companion book in a graduate course. For practitioners in the field it will be useful as a reference.
Download or read book Heavy ion Collisions and the Nuclear Equation of State written by and published by . This book was released on 1992 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall goal of this project is to study nucleus-nucleus collisions experimentally at intermediate and relativistic energies, with emphasis on measurement and interpretation of correlation effects that provide insight into the nuclear phase diagram and the nuclear equation of state. During the past year, the PI has been on leave at Lawrence Berkeley Lab and has worked on this research project full-time. A large fraction of the effort of the PI and graduate students has gone into preparing for experiments using the Time Projection Chamber at LBL's Bevalac accelerator; in March 1992, this device successfully took data in production mode for the first time, and the first physics analysis is now under way. The PI has carried out simulations that help to define the physics performance and engineering specifications of the recently-approved STAR detector for the Relativistic Heavy Ion Collider, and has identified a new capability of this device with the potential for being an important quark-gluon plasma signature. A Postdoctoral Fellow, jointly supported by this grant and Kent State University, has been recruited to augment these efforts. Since May 1991, 11 journal papers have been published or submitted for publication; 2 conference proceedings and 9 reports or abstracts have also been published during the past year. One paper in Phys. Rev. Left., one in Phys. Rev. C, and one conference proceedings are based on the thesis project of one of the PI's Ph. D. students who is expected to graduate later this year. Partly in response to the impending closure of the Bevalac, the PI's group has recently joined the NA49 experiment at CERN.
Download or read book Multifragmentation in Heavy Ion Reactions written by Rajeev K. Puri and published by CRC Press. This book was released on 2023-10-26 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a collection of reviews of some of the recent developments in nuclear physics research at intermediate energies from across the globe. It especially focuses on the most essential aspects, such as multifragmentation and associated phenomena in nuclear collisions, with the incident energy region between a few MeV and several hundreds of MeV/nucleon. The topic of the book—multifragmentation—was chosen based on the fact that all heavy-ion collisions revolve around a fragmenting system, which is also thought to have a link to phase transitions. One unique and valuable dimension of this book is that it has brought together the research of several experts working in the field of intermediate energy heavy-ion collisions in various renowned laboratories of the world. It provides a thorough review of the recent developments in various related phenomena, especially multifragmentation, observed at the intermediate-energy range, both theoretically and experimentally. It extensively discusses the concept of nuclear symmetry energy, which is important for the nuclear physics and astrophysics communities. In addition, the book identifies potential research directions and technologies that will drive future innovations. It will serve as a valuable reference for a larger audience, including students who wish to pursue a career in nuclear physics and astrophysics.
Download or read book Advances in Nuclear Physics written by Rajeev K. Puri and published by Springer Nature. This book was released on 2020-12-15 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises select peer-reviewed papers from the Indo-French Workshop on Multifragmentation, Collective Flow, and Sub-Threshold Particle Production in Heavy-Ion Reactions held at the Department of Physics, Panjab University, Chandigarh, India in February, 2019. The contents highlight latest research trends in intermediate energy nuclear physics and emphasize on the various reaction mechanisms which take place in heavy-ion collisions. The chapters contribute to the understanding of interactions that govern the dynamics at sub-nucleonic level. The book includes contributions from global experts hailing from major research facilities of nuclear physics, and provides a good balance between experimental and theoretical model based studies. Given the range of topics covered, this book can be a useful reference for students and researchers interested in the field of heavy-ion reactions.
Download or read book Nuclear Equation Of State Lecture Notes Of The Workshop written by Ahmad Ansari and published by World Scientific. This book was released on 1996-03-22 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the diversified and changing scenarios of the current frontiers of nuclear physics research, the topic 'Nuclear Equation of State' occupies the pivotal position. The present series of lectures by well known experts in this field span a wide area ranging from low energy to ultrarelativistic energy, with application to astrophysical phenomena like supernovae explosions, neutron star and other stellar processes, phase transitions in quantum chromodynamics, and properties of quark-gluon plasma. The present status of the VUU model for the intermediate energy heavy-ion collisions is also reviewed.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantum Molecular Dynamics a Dynamical Microscopic N body Approach to Investigate Fragment Formation and the Nuclear Equation of State in Heavy Ion Collisions written by Jörg Aichelin and published by . This book was released on 1991 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1999 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strangeness In Nuclei Proceedings Of The Workshop written by S Kistryn and published by World Scientific. This book was released on 1993-04-30 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains lectures on the experimental and theoretical aspects of the present knowledge in the field of strangeness production in atomic nuclei. Emphasis is given to sub- and near-threshold production of strange particles, hypernucleus formation and decay. Special attention is paid to the discussion of the planned experimental investigation of those problems at the new accelerator COSY in Juelich and already running experiments at SIS, SATURNE, LEAR and CELSIUS.
Download or read book Astrophysics written by İbrahim Küçük and published by BoD – Books on Demand. This book was released on 2012-03-30 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with a clear progress to theoretical and observational astrophysics. It is not surprising that astrophysics is continually growing because very sophisticated telescopes are being developed and they bring the universe closer and make it accessible. Astrophysics Book presents a unique opportunity for readers to demonstrate processes do occur in Nature. The unique feature of this book is to cover different aspects in astrophysics covering the topics: • Astronomy • Theoretical Astrophysics • Observational Astrophysics • Cosmology • The Solar System • Stars • Planets • Galaxies • Observation • Spectroscopy • Dark Matter • Neutron Stars • High Energy Astrophysics
Download or read book Hot and Dense Nuclear Matter written by Walter Greiner and published by Springer Science & Business Media. This book was released on 1994 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute on [title], held in Bodrum, Turkey, Sept.-Oct. 1993. Leading researchers present new material and new results with regard to hot and dense nuclear matter. Essentially, they investigate how matter may have been formed and what its properties were just
Download or read book Advances in Nuclear Dynamics 2 written by Benito Arruñada and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 12th Winter Workshop on Nuclear Dynamics carried on the tradition, started in 1978, of bringing together scientists working in all regimes of nuclear dynamics. This broad range of related topics allows the researcher attending the Workshop to be exposed to work that normally would be considered outside his/her field, but could po tentially add a new dimension to the understanding of his/her work. At Snowbird, we brought together experimentalists working with heavy ion beams from 10 MeV/nucleon up to 200 GeV /nucleon and theoretical physicists working in diverse areas ranging from antisymmetrized fermionic dynamics to perturbative quantum chromo dynamics. Fu ture work at RHIC was discussed also, with presentations from several of the experimen tal groups. In addition, several talks addressed issues of cross-disciplinary relevance, from the study of water-drop-collisions, to the multi-fragmentation of buckyballs. Clearly the field of nuclear dynamics has a bright future. The understanding of the nuclear equation of state in all of its manifestations is being expanded on all fronts both theoretically and experimentally. Future Workshops on Nuclear Dynamics will certainly have much progress to report. Gary D. Westfall Wolfgang Bauer Michigan State Universzty v PREVIOUS WORKSHOPS The following table contains a list of the dates and locations of the previous Winter Workshops on Nuclear Dynamics as well as the members of the organizing committees. The chairpersons of the conferences are underlined.
Download or read book Dynamics of Heavy Ion Collisions at Intermediate Energies written by Sanjeev Kumar and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text book deals with many issues of nuclear reactions in contest with the heavy-ion collisions at intermediate energies. The main issues discussed in the book are Multifragmentation, elliptical flow, nuclear stopping and symmetry energy. These phenomenas can be compared with the happenings in the universe such as Supernova Explosion, Quark Gluon Plasma, Liquid Gas Phase transition, which were the basic processes at the time of expansion of the universe. Ultimately, the study of these phenomenas has made this book highly important and interesting for the researchers as well as master students working in the field of intermediate energies. In addition to this, the determination of symmetry energy for asymmetric nuclear matter, which is the burning topic in the present day research, is also explored in the present version of the book. In conclusion, the matter published in the book will give the readers the detailed analysis of the nature of the hadronic matter, which is the ultimate goal of all the theoretical as well as experimental nuclear physics collaborations throughout the world.
Download or read book Intermediate Energy Nuclear Physics written by A. S. Iljinov and published by CRC Press. This book was released on 1994-01-27 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intermediate-Energy Nuclear Physics is devoted to discussing the interaction between hadrons with nuclei, which leads to the emission of particles during an intranuclear cascade and subsequent decay of a highly excited residual nucleus. Experimental data and the methods and results of the calculation of probabilities of various processes initiated by intermediate-energy hadrons in nuclei are set forth and discussed. The potential for obtaining information on the structure and properties of nuclei by comparing experimental data with theoretical results is analyzed. New issues, such as analytic methods for the solution of kinetic equations describing the cascade, nuclear absorption of hadrons from bound states of hadronic atoms, interaction of antinucleons with nuclei, multifragmentation of highly excited residual nuclei, and polarization phenomena, are discussed in detail. The book also demonstrates hadron-nucleus interactions that bridge the gap between low-energy and heavy ions physics. It is an interesting reference for nuclear physicists and other researchers interested in the analysis of problems associated with the evolution of the early (hot) universe, neutron stars and supernovas, after-burning of radioactive waste in nuclear energy installations, and electronuclear energy breeding.
