Positively Charged Strange Quark Matter Search And Measurements Of Light Nuclei Production In High Energy Heavy Ion Collisions At The Ags Energies PDF Download

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(Search for Strange Quark Matter and Antimatter Produced in High Energy Heavy Ion Collisions).

(Search for Strange Quark Matter and Antimatter Produced in High Energy Heavy Ion Collisions).
Author:
Publisher:
Total Pages: 18
Release: 1992
Genre:
ISBN:

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This document describes the development and progress of our group's research program in high energy heavy ion physics. We are a subset of the Yale experimental high energy physics effort (YAUG group) who became interested in the physics of high energy heavy ions in 1988. Our interest began with the possibility of performing significant searches for strange quark matter. As we learned more about the subject and as we gained experimental experience through our participation in AGS experiment 814, our interests have broadened. Our program has focused on the study of new particles, including (but not exclusively) strange quark matter, and the high sensitivity measurement of other composite nuclear systems such as antinuclei and various light nuclei. The importance of measurements of the known, but rare, nuclear systems lies in the study of production mechanisms. A good understanding of the physics and phenomenology of rare composite particle production in essential for the interpretation of limits to strange quark matter searches. We believe that such studies will also be useful in probing the mechanisms involved in the collision process itself. We have been involved in the running and data analysis for AGS E814. We have also worked on the R D for AGS E864, which is an approved experiment designed to reach sensitivities where there will be a good chance of discovering strangelets or of setting significant limits on the parameters of strange quark matter.


Search for Strange Quark Matter and Antimatter Produced in High Energy Heavy Ion Collisions . Technical Progress Report for the Period April 1990--March 1992

Search for Strange Quark Matter and Antimatter Produced in High Energy Heavy Ion Collisions . Technical Progress Report for the Period April 1990--March 1992
Author:
Publisher:
Total Pages: 18
Release: 1992
Genre:
ISBN:

Download Search for Strange Quark Matter and Antimatter Produced in High Energy Heavy Ion Collisions . Technical Progress Report for the Period April 1990--March 1992 Book in PDF, ePub and Kindle

This document describes the development and progress of our group's research program in high energy heavy ion physics. We are a subset of the Yale experimental high energy physics effort (YAUG group) who became interested in the physics of high energy heavy ions in 1988. Our interest began with the possibility of performing significant searches for strange quark matter. As we learned more about the subject and as we gained experimental experience through our participation in AGS experiment 814, our interests have broadened. Our program has focused on the study of new particles, including (but not exclusively) strange quark matter, and the high sensitivity measurement of other composite nuclear systems such as antinuclei and various light nuclei. The importance of measurements of the known, but rare, nuclear systems lies in the study of production mechanisms. A good understanding of the physics and phenomenology of rare composite particle production in essential for the interpretation of limits to strange quark matter searches. We believe that such studies will also be useful in probing the mechanisms involved in the collision process itself. We have been involved in the running and data analysis for AGS E814. We have also worked on the R & D for AGS E864, which is an approved experiment designed to reach sensitivities where there will be a good chance of discovering strangelets or of setting significant limits on the parameters of strange quark matter.


Nuclear Physics

Nuclear Physics
Author: National Research Council
Publisher: National Academies Press
Total Pages: 222
Release: 1999-03-31
Genre: Science
ISBN: 0309173663

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Dramatic progress has been made in all branches of physics since the National Research Council's 1986 decadal survey of the field. The Physics in a New Era series explores these advances and looks ahead to future goals. The series includes assessments of the major subfields and reports on several smaller subfields, and preparation has begun on an overview volume on the unity of physics, its relationships to other fields, and its contributions to national needs. Nuclear Physics is the latest volume of the series. The book describes current activity in understanding nuclear structure and symmetries, the behavior of matter at extreme densities, the role of nuclear physics in astrophysics and cosmology, and the instrumentation and facilities used by the field. It makes recommendations on the resources needed for experimental and theoretical advances in the coming decade.


Production of Strange Clusters in Relativistic Heavy Ion Collisions

Production of Strange Clusters in Relativistic Heavy Ion Collisions
Author:
Publisher:
Total Pages: 17
Release: 1993
Genre:
ISBN:

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We address a number of issues related to the production of strangeness in high energy heavy ion collisions, including the possibility that stable states of multi-strange hyperonic or quark matter might exist, and the prospects that such objects may be created and detected in the laboratory. We make use of events generated by the cascade code ARC to estimate the rapidity distribution dN/dy of strange clusters produced in Si+Au and Au+Au collisions at AGS energies. These calculations are performed in a simple coalescence model, which yields a consistent description of the strange cluster (d, [sup 3]HE, [sup 3]H, [sup 4]He) production at these energies. If a doubly strange, weakly bound [Lambda][Lambda] dibaryon exists, we find that it is produced rather copiously in Au+Au collisions, with dN/dy [approximately]0.1 at raid-rapidity. If one adds another non-strange or strange baryon to a cluster, the production rate decreases by roughly one or two orders of magnitude, respectively. For instance, we predict that the hypernucleus [sub [Lambda][Lambda]][sup 6]He should have dN/dy [approximately]5 [times] 10[sup [minus]6] for Au+Au central collisions. It should be possible to measure the successive [Lambda] [yields] p[pi][minus] weak decays of this object. We comment on the possibility that conventional multi-strange hypernuclei may serve as doorway states'' for the production of stable configurations of strange quark matter, if such states exist.


Introduction to Relativistic Heavy Ion Physics

Introduction to Relativistic Heavy Ion Physics
Author: Jerzy Bartke
Publisher: World Scientific
Total Pages: 239
Release: 2009
Genre: Science
ISBN: 9810212313

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This book attempts to cover the fascinating field of physics of relativistic heavy ions, mainly from the experimentalist's point of view. After the introductory chapter on quantum chromodynamics, basic properties of atomic nuclei, sources of relativistic nuclei, and typical detector set-ups are described in three subsequent chapters. Experimental facts on collisions of relativistic heavy ions are systematically presented in 15 consecutive chapters, starting from the simplest features like cross sections, multiplicities, and spectra of secondary particles and going to more involved characteristics like correlations, various relatively rare processes, and newly discovered features: collective flow, high pT suppression and jet quenching. Some entirely new topics are included, such as the difference between neutron and proton radii in nuclei, heavy hypernuclei, and electromagnetic effects on secondary particle spectra.Phenomenological approaches and related simple models are discussed in parallel with the presentation of experimental data. Near the end of the book, recent ideas about the new state of matter created in collisions of ultrarelativistic nuclei are discussed. In the final chapter, some predictions are given for nuclear collisions in the Large Hadron Collider (LHC), now in construction at the site of the European Organization for Nuclear Research (CERN), Geneva. Finally, the appendix gives us basic notions of relativistic kinematics, and lists the main international conferences related to this field. A concise reference book on physics of relativistic heavy ions, it shows the present status of this field.


High Energy Physics Index

High Energy Physics Index
Author:
Publisher:
Total Pages: 716
Release: 1990
Genre: Nuclear physics
ISBN:

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