Universal Behavior Of Charged Particle Production In Heavy Ion Collisions At Rhic Energies
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: |
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: |
Total Pages |
: 3 |
Release |
: 2002 |
ISBN-10 |
: OCLC:68488359 |
ISBN-13 |
: |
Rating |
: 4/5 (59 Downloads) |
Synopsis UNIVERSAL BEHAVIOR OF CHARGED PARTICLE PRODUCTION IN HEAVY ION COLLISIONS AT RHIC ENERGIES. by :
The PHOBOS experiment at RHIC has measured the multiplicity of primary charged particles as a function of centrality and pseudorapidity in Au+Au collisions at (square root)(s{sub NN}) = 19.6, 130 and 200 GeV. Two observations indicate universal behavior of charged particle production in heavy ion collisions. The first is that forward particle production, over a range of energies, follows a universal limiting curve with a non-trivial centrality dependence. The second arises from comparisons with pp/{bar p}p and ee− data. N{sub ch}/N{sub part}/2 in nuclear collisions at high energy scales with (square root)s in a similar way as N{sub ch} in ee− collisions and has a very weak centrality dependence. These features may be related to a reduction in the leading particle effect due to the multiple collisions suffered per participant in heavy ion collisions.
Author |
: S. Bentvelsen |
Publisher |
: Elsevier |
Total Pages |
: 1004 |
Release |
: 2012-12-02 |
ISBN-10 |
: 9780444599162 |
ISBN-13 |
: 0444599169 |
Rating |
: 4/5 (62 Downloads) |
Synopsis Proceedings of the 31st International Conference on High Energy Physics ICHEP 2002 by : S. Bentvelsen
The first precision measurements on CP violation in the B system are reported. Both the BELLE and the BABAR collaboration presented, among others, results for sin 2ß with much improved accuracy. Results from the Sudbury Neutrino Observatory, SNO, also deserve to be mentioned. The convincing evidence of solar neutrino oscillations had been presented by SNO prior to the conference; a full presentation was given at the conference. An incredibly precise measurement of the anomalous magnetic moment of the muon is reported, a fresh result from the Brookhaven National Laboratory. Apart from these distinct physics highlights, there are also the first results from the new Tevatron run and from the relativistic heavy ion collider RHIC. Theorists write of our ever better understanding of the Standard Model and of what might lie beyond. Risky as it is to highlight only a couple of exciting subjects, it is merely meantto whet the appetite for further reading.
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: |
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: |
Total Pages |
: 1012 |
Release |
: 2002 |
ISBN-10 |
: UOM:39015057328653 |
ISBN-13 |
: |
Rating |
: 4/5 (53 Downloads) |
Synopsis Proceedings of the ... International Conference on High Energy Physics by :
Author |
: Jerzy Bartke |
Publisher |
: World Scientific |
Total Pages |
: 239 |
Release |
: 2009 |
ISBN-10 |
: 9789810212315 |
ISBN-13 |
: 9810212313 |
Rating |
: 4/5 (15 Downloads) |
Synopsis Introduction to Relativistic Heavy Ion Physics by : Jerzy Bartke
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.
Author |
: Austin A. Baty |
Publisher |
: |
Total Pages |
: 245 |
Release |
: 2019 |
ISBN-10 |
: OCLC:1132808066 |
ISBN-13 |
: |
Rating |
: 4/5 (66 Downloads) |
Synopsis Study of Parton Energy Loss in Heavy Ion Collisions Using Charged Particle Spectra Measured with CMS by : Austin A. Baty
The phenomenology of the strong nuclear force is still not well understood at low momentum transfers and requires experimental input to constrain. Collisions of heavy ions at the Large Hadron Collider provide a unique opportunity to explore this kinematic region because they create a novel form of matter: the quark-gluon plasma (QGP). Using the CMS detector, spectra of charged particles originating from protonproton (pp), proton-lead (pPb), and lead-lead (PbPb) collisions at a center of mass energy per nucleon pair ( [square root of SNN) of 5.02 TeV are examined as a function of transverse momentum and centrality. Nuclear modification factors and fragmentation functions are constructed from these spectra. By comparing to pp collision reference spectra, a puzzle concerning previous measurements in pPb collisions is clarified. A strong suppression of particle production observed in PbPb collisions is also quantified. Finally, collisions of xenon nuclei are also studied to constrain the path length dependence of parton energy loss. The strength of energy loss is found to increase with both [square root of SNN and the average path length through the QGP. Comparisons to theoretical models and previous measurements indicate that the path length dependence is between linear and quadratic, as expected from a combination of collisional and radiative energy loss mechanisms.
Author |
: Argonne National Laboratory. Physics Division |
Publisher |
: |
Total Pages |
: 314 |
Release |
: 2003 |
ISBN-10 |
: CORNELL:31924102863754 |
ISBN-13 |
: |
Rating |
: 4/5 (54 Downloads) |
Synopsis Physics Division Annual Report by : Argonne National Laboratory. Physics Division
Author |
: Rudolph C. Hwa |
Publisher |
: CRC Press |
Total Pages |
: 338 |
Release |
: 1990 |
ISBN-10 |
: 2881247342 |
ISBN-13 |
: 9782881247347 |
Rating |
: 4/5 (42 Downloads) |
Synopsis Relativistic Heavy-ion Collisions by : Rudolph C. Hwa
Papers of the June 1989 meeting in Beijing by the China Center of Advanced Science and Technology. This small book covers nucleus- nucleus collisions, states of the vacuum, and highly relativistic heavy ions in the experimental realm. Theoretical papers deal with quark-gluon plasma, and relativistic heavy ion collisions. Annotation copyrighted by Book News, Inc., Portland, OR
Author |
: Cheuk-Yin Wong |
Publisher |
: World Scientific |
Total Pages |
: 542 |
Release |
: 1994 |
ISBN-10 |
: 9810202636 |
ISBN-13 |
: 9789810202637 |
Rating |
: 4/5 (36 Downloads) |
Synopsis Introduction to High-energy Heavy-ion Collisions by : Cheuk-Yin Wong
Written primarily for researchers and graduate students who are new in this emerging field, this book develops the necessary tools so that readers can follow the latest advances in this subject. Readers are first guided to examine the basic informations on nucleon-nucleon collisions and the use of the nucleus as an arena to study the interaction of one nucleon with another. A good survey of the relation between nucleon-nucleon and nucleus-nucleus collisions provides the proper comparison to study phenomena involving the more exotic quark-gluon plasma. Properties of the quark-gluon plasma and signatures for its detection are discussed to aid future searches and exploration for this exotic matter. Recent experimental findings are summarised.
Author |
: Jan Rak |
Publisher |
: Cambridge University Press |
Total Pages |
: 399 |
Release |
: 2013-04-25 |
ISBN-10 |
: 9780521190299 |
ISBN-13 |
: 0521190290 |
Rating |
: 4/5 (99 Downloads) |
Synopsis High-pT Physics in the Heavy Ion Era by : Jan Rak
One of few books to address both high-pT physics and relativistic heavy ion collisions. Essential handbook for graduates and researchers.
Author |
: |
Publisher |
: |
Total Pages |
: 15 |
Release |
: 2002 |
ISBN-10 |
: OCLC:68488968 |
ISBN-13 |
: |
Rating |
: 4/5 (68 Downloads) |
Synopsis Strangeness Production in Heavy Ion Collisions by :
A review of strange particle production in heavy ion collisions at ultrarelativistic energies is presented. The particle yields and ratios from SPS and RHIC are discussed in view of the newest developments in understanding collision dynamics, and in view of their role in the search for a quark gluon plasma. A strangeness enhancement, most notably observed in CERN Pb-beam results, shows a remarkable two fold global enhancement with a much larger effect seen in the case of multistrange baryons. Hadronic models did fail to explain this pattern. At RHIC energy strangeness assumes a different role, since temperatures are higher and the central rapidity region almost baryon-free. An intriguing question: ''Did RHIC change the way we understand strangeness production in heavy ion collisions?'' is discussed.