Download or read book Fluctuations and Correlations in 200A GeV A A Collisions written by and published by . This book was released on 1991 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Factorial cumulant moments are used to analyze pseudorapidity fluctuations in A-A interactions. Only the second cumulant moments are significantly non-zero for central event samples, which implies that the higher order scaled factorial moments for the central data provide little information in addition to that from the second moments. The slopes of the cumulant plots are found to be inversely proportional to? density for a variety of beam/target/energy combinations. We also present results on 2-D scaled factorial moments and the 2-particle correlations for central S+Au interactions.

Download or read book Intersections Between Particle and Nuclear Physics written by W. T. H. Van Oers and published by . This book was released on 1992 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of Non flow Correlations and Elliptic Flow Fluctuations in Au Au Collisions at Relativistic Heavy Ion Collider written by Burak Han Alver and published by . This book was released on 2010 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of collective flow and two-particle correlations have proven to be effective tools for understanding the properties of the system produced in ultrarelativistic nucleus-nucleus collisions at the Relativistic Heavy Ion Collider (RHIC). Accurate modeling of the initial conditions of a heavy ion collision is crucial in the interpretation of these results. The anisotropic shape of the initial geometry of heavy ion collisions with finite impact parameter leads to an anisotropic particle production in the azimuthal direction through collective flow of the produced medium. In "head-on" collisions of Copper nuclei at ultrarelativistic energies, the magnitude of this "elliptic flow" has been observed to be significantly large. This is understood to be due to fluctuations in the initial geometry which leads to a significant anisotropy even for most central Cu+Cu collisions. This thesis presents a phenomenological study of the effect of initial geometry fluctuations on two-particle correlations and an experimental measurement of the magnitude of elliptic flow fluctuations which is predicted to be large if initial geometry fluctuations are present. Two-particle correlation measurements in Au+Au collisions at the top RHIC energies have shown that after correction for contributions from elliptic flow, strong azimuthal correlation signals are present at A0 = 0 and A0 ~ 120. These correlation structures may be understood in terms of event-by-event fluctuations which result in a triangular anisotropy in the initial collision geometry of heavy ion collisions, which in turn leads to a triangular anisotropy in particle production. It is observed that similar correlation structures are observed in A Multi-Phase Transport (AMPT) model and are, indeed, found to be driven by the triangular anisotropy in the initial collision geometry. Therefore "triangular flow" may be the appropriate description of these correlation structures in data. The measurement of elliptic flow fluctuations is complicated by the contributions of statistical fluctuations and other two-particle correlations (non-flow correlations) to the observed fluctuations in azimuthal particle anisotropy. New experimental techniques, which crucially rely on the uniquely large coverage of the PHOBOS detector at RHIC, are developed to quantify and correct for these contributions. Relative elliptic flow fluctuations of approximately 30-40% are observed in 6-45% most central Au+Au collisions at s NN= 200 GeV. These results are consistent with the predicted initial geometry fluctuations.

Download or read book Multiplicity Fluctuations in Nuclear Collisions at 158 A GeV written by Maciej Rybczyński and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Charged to neutral Correlation at Forward Rapidity in Au Au Collisions at math mrow msqrt msub mi mi mi Mathvariant written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Event-by-event fluctuations of the ratio of inclusive charged to photon multiplicities at forward rapidity in Au+Au collision at √sNN=200 GeV have been studied. Dominant contribution to such fluctuations is expected to come from correlated production of charged and neutral pions. We search for evidences of dynamical fluctuations of different physical origins. Observables constructed out of moments of multiplicities are used as measures of fluctuations. Mixed events and model calculations are used as baselines. Results are compared to the dynamical net-charge fluctuations measured in the same acceptance. A non-zero statistically significant signal of dynamical fluctuations is observed in excess to the model prediction when charged particles and photons are measured in the same acceptance. Thus, we find that, unlike dynamical net-charge fluctuation, charge-neutral fluctuation is not dominated by correlation due to particle decay. Results are compared to the expectations based on the generic production mechanism of pions due to isospin symmetry, for which no significant (

Download or read book Fluctuations in the Density of Charged Particles in 200 A GeV 16O C Au Collisions written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from 200 A GeV 16O + (C, Au) reactions are presented. The local fluctuations in the pseudo-rapidity density charged particles were studied with the method of scaled factorial moments. The extracted moments, , are found to be proportional to a power of the size of the pseudo-rapidity interval, [delta][eta]. Slopes were determined from the linear relation ln = a/sub i/ - [phi]/sub i/ln[delta][eta] and their dependence on impact parameter and multiplicity of charged particles are shortly discussed. 10 refs., 3 figs.

Download or read book Two Particle Correlations in Au Au Collisions at 11 5 GeV c Per Nucleon written by Thongbay Vongpaseuth and published by . This book was released on 1999 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Multiparticle Dynamics Proceedings Of The Xxii International Symposium written by C Pajares and published by World Scientific. This book was released on 1993-08-12 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: By adopting the approach of simulating actual morning report sessions experienced by hospital doctors, Clinical Case Studies in Pediatrics provides a compendium of commonly seen types of pediatrics cases that require hospital admission. Each case study is presented by description of indication of admission to the hospital, the physical examination and laboratory test results, followed by a differential diagnosis, discussion of the differential diagnosis, and finally an in-depth discussion of the actual diagnosis. Study and review questions, which will help medical students or pediatricians-in-training to apply their knowledge, are also included. This book will not only be useful to medical students, it can also be a handy reference for pediatricians and doctors-in-training.

Download or read book Introduction to Relativistic Heavy Ion Physics written by Jerzy Bartke and published by World Scientific. This book was released on 2009 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book The Study of Elementary Particles by the Photographic Method written by Cecil Frank Powell and published by Pergamon. This book was released on 1959 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the development of the photographic method of recording the tracks of charged particles, including the technical methods employed in its application to the discovery of mesons, hyperons and anti-nucleons, and the elucidation of their properties -- Dust jacket.

Download or read book Quark Gluon Plasma 3 written by Rudolph C. Hwa and published by World Scientific. This book was released on 2004 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Momentum Distributions written by Richard N. Silver and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the proceedings of the Workshop on Momentum Distributions held on October 24 to 26, 1988 at Argonne National Laboratory. This workshop was motivated by the enormous progress within the past few years in both experimental and theoretical studies of momentum distributions, by the growing recognition of the importance of momentum distributions to the characterization of quantum many-body systems, and especially by the realization that momentum distribution studies have much in common across the entire range of modern physics. Accordingly, the workshop was unique in that it brought together researchers in nuclear physics, electronic systems, quantum fluids and solids, and particle physics to address the common elements of momentum distribution studies. The topics dis cussed in the workshop spanned more than ten orders of magnitude range in charac teristic energy scales. The workshop included an extraordinary variety of interactions from Coulombic to hard core repulsive, from non-relativistic to extreme relativistic.

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2566 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Nucleus written by F.D. Smit and published by Springer Science & Business Media. This book was released on 1999 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the International Conference on The Nucleus: New Physics for the New Millennium, held January 18-22, 1999, at the National Accelerator Centre, Faure, South Africa

Download or read book Phenomenology Of Ultra relativistic Heavy ion Collisions written by Wojciech Florkowski and published by World Scientific Publishing Company. This book was released on 2010-03-24 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Physics and Astrophysics of Neutrinos written by Masataka Fukugita and published by Springer Science & Business Media. This book was released on 2013-12-14 with total page 947 pages. Available in PDF, EPUB and Kindle. Book excerpt: Observations of neutrinos being emitted by the supernova SN1987A, star neutrinos, and atmospheric neutrinos have provided new insights into astronomy, as well as new unresolved phenomena such as the solar neutrino problem, spurring investigative studies among particle physicists and astrophysicists. One of the most important features of this book is its enumeration of a number of basic properties of neutrinos and their relationship to Grand Unified Theories, focusing on the origin of the neutrino's mass and the generation mixing of neutrinos. All the kamiokande results, detector performances, and complete references are included.