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Author:
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ISBN:
Category :
Languages : en
Pages : 13
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Book Description
Relativistic heavy ion collisions provide, in principle, necessary conditions for the formation of the quark gluon plasma. Strangeness enhancement was among the announced specific signals expected from this new, hypothetical state of nuclear matter. Analysis of the first generation of experiments with light and medium sized ions have been completed. Results ''on strangeness production become precious handles to study in great detail what is actually happening. The current experimental situation is assessed. The emerging picture is still incomplete: however, open questions constrain requirements on future heavy ion experiments.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
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Book Description
Relativistic heavy ion collisions provide, in principle, necessary conditions for the formation of the quark gluon plasma. Strangeness enhancement was among the announced specific signals expected from this new, hypothetical state of nuclear matter. Analysis of the first generation of experiments with light and medium sized ions have been completed. Results ''on strangeness production become precious handles to study in great detail what is actually happening. The current experimental situation is assessed. The emerging picture is still incomplete: however, open questions constrain requirements on future heavy ion experiments.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 692
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Book Description
Author: Jean Letessier
Publisher: Springer Science & Business Media
ISBN: 1461519454
Category : Science
Languages : en
Pages : 569
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Book Description
The past decade has seen the development of the operational understanding of fun damental interactions within the standard model. This has detoured our attention from the great enigmas posed by the dynamics and collective behavior of strongly interacting particles. Discovered more than 30 years ago, the thermal nature of the hadronic particle spectra has stimulated considerable theoretical effort, which so far has failed to 'confirm' on the basis of microscopic interactions the origins of this phenomenon. However, a highly successful Statistical Bootstrap Model was developed by Rolf Hagedorn at CERN about 30 years ago, which has led us to consider the 'boiling hadronic matter' as a transient state in the trans formation of hadronic particles into their melted form which we call Quark-GIuon-Plasma (QGP). Today, we return to seek detailed understanding of the thermalization processes of hadronic matter, equipped on the theoretical side with the knowledge of the fundamental strong interaction theory, the quantum chromo-dynamics (QCD), and recognizing the im portant role of the complex QCD-vacuum structure. On the other side, we have developed new experimental tools in the form of nuclear relativistic beams, which allow to create rather extended regions in space-time of Hot Hadronic Matter. The confluence of these new and recent developments in theory and experiment led us to gather together from June 27 to July 1, 1994, at the Grand Hotel in Divonne-Ies-Bains, France, to discuss and expose the open questions and issues in our field.
Author: Il-t Cheon
Publisher: World Scientific
ISBN: 9814492752
Category : Science
Languages : en
Pages : 462
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Book Description
The unique role of strangeness in nuclear physics has recently attracted much attention, from both the theoretical and experimental viewpoints. This is due not only to the broad spectrum of possible hadron many-body systems with strangeness, but also to the fact that strangeness gives us an opportunity to study fundamental baryon-baryon interactions in a new perspective. Our knowledge of this subject has widened as the scope of hypernuclear experiments has expanded from strangeness exchange and the associated production reactions to hypernuclear weak decays, β decays, cascade hypernuclei, double-Λ events, electroproduction of strangeness, etc. This trend will be accelerated by the full operation of new laboratories such as TJLab, COSY, DAΦNE, JHF, MAMI, and others. Various aspects of those important and exciting topics are discussed in this book in order to get a perspective of this fast developing area of nuclear physics.
Author: Hans H. Gutbrod
Publisher: Springer Science & Business Media
ISBN: 1461529409
Category : Science
Languages : en
Pages : 680
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Book Description
Seven years after the first experiments in the new field of Nuclear Physics, the Highly Relativistic Heavy Ion Physics, the Nato-Advanced- Study-Institute on the 'Particle Production in Highly Excited Matter' was held from July 12 till July 24, 1992, at Il Ciocco, Castelvecchio Pascoli, near Lucca in Italy. The school took place at a mo ment when intensive efforts are mounted by the scientific community of Relativistic Heavy Ion Physics to meet the extraordinary challenge of the new upcoming physics opportunities. The gold beams of 10 GeV A at Brookhaven AGS have been sent to the experiments this Summer and we extent our congratulations to the persons and teams who made this possible. The Relativistic Heavy Ion Collider (RHIC) at Brookhaven is under construction and expected to allow experiments to see collisions in the intersec tion regions early 1998. The lead beams at the SPS at CERN scheduled for summer 1994 are eagerly awaited by 6 large experiments, and many scientists are planning the experiments at the planned LHC with heavy ions to be turned on before the year 2000. Seen against this background of rather fierce activity, we were most delighted when NATO accepted our application for an Advanced Study Institute oriented to the main subject of this young and dynamic field of research. We are very grateful to the Scientific Affairs Division of NATO and Dr. L. DaCunha, the director of the Advanced Study Institute program for giving our community this opportunity.
Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 442
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Book Description
Author: M. Anselmino
Publisher: IOS Press
ISBN: 1607503484
Category : Science
Languages : en
Pages : 496
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Book Description
Strangeness and Spin in Fundamental Physics is dedicated to the discussion of the role played by two subtle and somehow puzzling quantum numbers, the strangeness and the spin, in fundamental physics. They both relate to basic properties of the fundamental quantum field theories describing strong and electro-weak interactions and to their phenomenological applications. In some instances, like the partonic spin structure of the proton, they are deeply correlated. The many puzzling results recently obtained by measuring several spin asymmetries have stimulated gigantic progresses in the study of the spin structure of protons and neutrons. Intense theoretical activity has discovered new features of non-perturbative QCD, like strong correlations between the spin and the intrinsic motions of quarks inside the nucleons. The purpose of this publication is that of providing a complete, updated and critical account of the most recent and relevant discoveries in the above fields, both from the experimental and theoretical sides.
Author: Keisuke Fujii
Publisher: World Scientific
ISBN: 9814552283
Category :
Languages : en
Pages : 414
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Book Description
This volume presents topics in which researchers in elementary particle and nuclear physics are commonly interested: nonperturbative aspects of QCD and chiral properties of hadrons, relativistic heavy ion reactions and quark-gluon plasma, nuclear matter at high temperature/ density, lattice QCD, quark structure of hadrons and nuclei, high q2 phenomena in hadrons and nuclei, heavy quarks and weak interaction, hyperon interactions and hypernuclei, relativistic nuclear theory, recent experimentals and other topics.Speakers: A A Andrianov, H Ejiri, V N Fetisov, Y Iwasaki, C Ciofi Degli Atti, V G Kadyshevsky, D I Kazakov, R Brockmann, A P Kobushkin, C M Ko, T Humanic, S H Lee, T Matsui, Y Mizuno, Y M Musakhanov, T Morü, M Namiki, S Saito, T-A Shibata, T Suzuki, A I Titov, G M Vagradov, M K Volkov, M Oka, A V Shebeko, S N Yang, G M Zinovjev, etc.
Author: United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Research and Production
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1320
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Book Description
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309478561
Category : Science
Languages : en
Pages : 153
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Book Description
Understanding of protons and neutrons, or "nucleons"â€"the building blocks of atomic nucleiâ€"has advanced dramatically, both theoretically and experimentally, in the past half century. A central goal of modern nuclear physics is to understand the structure of the proton and neutron directly from the dynamics of their quarks and gluons governed by the theory of their interactions, quantum chromodynamics (QCD), and how nuclear interactions between protons and neutrons emerge from these dynamics. With deeper understanding of the quark-gluon structure of matter, scientists are poised to reach a deeper picture of these building blocks, and atomic nuclei themselves, as collective many-body systems with new emergent behavior. The development of a U.S. domestic electron-ion collider (EIC) facility has the potential to answer questions that are central to completing an understanding of atoms and integral to the agenda of nuclear physics today. This study assesses the merits and significance of the science that could be addressed by an EIC, and its importance to nuclear physics in particular and to the physical sciences in general. It evaluates the significance of the science that would be enabled by the construction of an EIC, its benefits to U.S. leadership in nuclear physics, and the benefits to other fields of science of a U.S.-based EIC.
