Heavy Flavor in Heavy-ion Collisions at RHIC and RHIC II PDF Download

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Category :
Languages : en
Pages : 94

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Author: Anthony D. Frawley
Publisher:
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Category :
Languages : en
Pages : 217

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Languages : en
Pages : 98

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In the initial years of operation, experiments at the Relativistic Heavy Ion Collider (RHIC) have identified a new form of matter formed in nuclei-nuclei collisions at energy densities more than 100 times that of a cold atomic nucleus. Measurements and comparison with relativistic hydrodynamic models indicate that the matter thermalizes in an unexpectedly short time, has an energy density at least 15 times larger than needed for color deconfinement, has a temperature about twice the critical temperature predicted by lattice QCD, and appears to exhibit collective motion with ideal hydrodynamic properties--a 'perfect liquid' that appears to flow with a near-zero viscosity to entropy ratio--lower than any previously observed fluid and perhaps close to a universal lower bound. However, a fundamental understanding of the medium seen in heavy-ion collisions at RHIC does not yet exist. The most important scientific challenge for the field in the next decade is the quantitative exploration of the new state of nuclear matter. That will require new data that will, in turn, require enhanced capabilities of the RHIC detectors and accelerator. In this report we discuss the scientific opportunities for an upgraded RHIC facility --RHIC II--in conjunction with improved capabilities of the two large RHIC detectors, PHENIX and STAR. We focus solely on heavy flavor probes. Their production rates are calculable using the well-established techniques of perturbative QCD and their sizable interactions with the hot QCD medium provide unique and sensitive measurements of its crucial properties making them one of the key diagnostic tools available to us.

Author: Ramona Vogt
Publisher: Elsevier
ISBN: 0080525369
Category : Science
Languages : en
Pages : 489

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This book is designed for advanced undergraduate and graduate students in high energy heavy-ion physics. It is relevant for students who will work on topics being explored at RHIC and the LHC. In the first part, the basic principles of these studies are covered including kinematics, cross sections (including the quark model and parton distribution functions), the geometry of nuclear collisions, thermodynamics, hydrodynamics and relevant aspects of lattice gauge theory at finite temperature. The second part covers some more specific probes of heavy-ion collisions at these energies: high mass thermal dileptons, quarkonium and hadronization. The second part also serves as extended examples of concepts learned in the previous part. Both parts contain examples in the text as well as exercises at the end of each chapter. - Designed for students and newcomers to the field- Focuses on hard probes and QCD- Covers all aspects of high energy heavy-ion physics- Includes worked example problems and exercises

Author: Richard Seto
Publisher: World Scientific
ISBN: 9814543322
Category :
Languages : en
Pages : 338

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This book represents the proceedings of a symposium held during the centennial meeting of the American Physical Society. It covers the latest results in experimental heavy ion physics from the Alternating Gradient Accelerator in the US and the SpS at CERN, and summarizes the current theoretical and experimental state of the field before the commissioning of RHIC. Among the highlights are the theoretical predictions made for what the experimentalists will see in the high temperature matter expected to be formed at the new machine.

Author: Wojciech Florkowski
Publisher: World Scientific Publishing Company
ISBN: 9813107596
Category : Science
Languages : en
Pages : 437

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This book gives an introduction to main ideas used in the physics of ultra-relativistic heavy-ion collisions. The links between basic theoretical concepts (discussed gradually from the elementary to more advanced level) and the results of experiments are outlined, so that experimentalists may learn more about the foundations of the models used by them to fit and interpret the data, while theoreticians may learn more about how different theoretical ideas are used in practical applications. The main task of the book is to collect the available information and establish a uniform picture of ultra-relativistic heavy-ion collisions. The properties of hot and dense matter implied by this picture are discussed comprehensively. In particular, the issues concerning the formation of the quark-gluon plasma in present and future heavy-ion experiments are addressed.

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Languages : en
Pages : 8

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Accurate assessments of the charm and bottom cross sections and kinematic distributions in hadron-hadron collisions are needed in order to understand the behavior of heavy flavors in more complex collisions. Neither the charm nor bottom cross sections were measured at (square root)S = 200 GeV before the startup of the Relativistic Heavy Ion Collider (RHIC). The RHIC detectors are capable of measuring the heavy flavor transverse momentum distributions to p{sub T} (almost equal to) 0, making estimates of the total heavy flavor cross section feasible at a collider. It is thus possible to obtain and compare the total heavy flavor cross sections at RHIC with those measured at other energies. The charm production data, in particular, can have a considerable spread in the measured cross sections, even at a single energy. In addition, the small charm mass can lead to large theoretical uncertainties. We assess the theoretical uncertainties on the heavy flavor (charm and bottom) hadroproduction cross section. We discuss the importance of the quark mass, the renormalization and factorization scales and the parton densities on the estimate of the uncertainty.

Author: Rudolph C. Hwa
Publisher: CRC Press
ISBN: 9782881247347
Category : Science
Languages : en
Pages : 338

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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:
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Languages : en
Pages : 15

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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.

Author: Rudolph C. Hwa
Publisher: World Scientific
ISBN: 9812795537
Category : Science
Languages : en
Pages : 786

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Book Description
Annotation. Text reviews the major topics in Quark-Gluon Plasma, including: the QCD phase diagram, the transition temperature, equation of state, heavy quark free energies, and thermal modifications of hadron properties. Includes index, references, and appendix. For researchers and practitioners.