Large Fragment Production Calculations in Relativistic Heavy-ion Reactions PDF Download
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Author: Luiz Fernando Seixas de Oliveira
Publisher:
ISBN:
Category :
Languages : en
Pages : 294
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Book Description
Author: Luiz Fernando Seixas de Oliveira
Publisher:
ISBN:
Category :
Languages : en
Pages : 294
Get Book Here
Book Description
![Large Fragment Production Calculations in Relativistic Heavy-ion Reactions. [Abrasion-ablation Model, Cross Sections, Fireball and Firestreak Models]. PDF](https://books.google.com/books/content/images/frontcover/PA-TAQAACAAJ?fife=w80-h100)
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Languages : en
Pages :
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Book Description
The abrasion-ablation model is briefly described and then used to calculate cross sections for production of large fragments resulting from target or projectile fragmentation in high-energy heavy-ion collisions. The number of nucleons removed from the colliding nuclei in the abrasion stage and the excitation energy of the remaining fragments (primary products) are calculated with the geometrical picture of two different models: the fireball and the firestreak models. The charge-to-mass dispersion of the primary products is calculated using either a model which assumes no correlations between proton and neutron positions inside the nucleus (hypergeometric distribution) or a model based upon the zero-point oscillations of the giant dipole resonance (NUC-GDR). Standard Weisskopf--Ewing statistical evaporation calculations are used to calculate final product distributions. Results of the pure abrasion-ablation model are compared with a variety of experimental data. The comparisons show the insufficiency of the extra-surface energy term used in the abrasion calculations. A frictional spectator interaction (FSI) is introduced which increases the average excitation energy of the primary products, and improves the results considerably in most cases. Agreements and discrepancies of the results calculated with the different theoretical assumptions and the experimental data are studied. Of particular relevance is the possibility of observing nuclear ground-state correlations. Results of the recently completed experiment of fragmentation of 213 Mev/A 4°Ar projectiles are studied and shown not to be capable of answering that question unambiguously. But predictions for the upcoming 48Ca fragmentation experiment clearly show the possibility of observing correlation effects. 78 references.
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Category : Power resources
Languages : en
Pages : 332
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Author: Barbara Vincenta Jacak
Publisher:
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Category : Argon
Languages : en
Pages : 420
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Category : Aeronautics
Languages : en
Pages : 24
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Category : Fragmentation reactions
Languages : en
Pages : 22
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Author:
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Category : Astronautics
Languages : en
Pages : 532
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Author: Amand Faessler
Publisher:
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Category : Elastic scattering
Languages : en
Pages : 448
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Author:
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Category : Power resources
Languages : en
Pages : 848
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Author: Jerzy Bartke
Publisher: World Scientific
ISBN: 9810212313
Category : Science
Languages : en
Pages : 239
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Book Description
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.
