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Book Partial Wave Analysis of Kaon Nucleon Scattering Between 1480 and 2080 MeV

Download or read book Partial Wave Analysis of Kaon Nucleon Scattering Between 1480 and 2080 MeV written by Haoran Sun and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of baryon spectroscopy provide one avenue to learn about the nature of QCD confinement. By carrying out systematic multichannel analyses of a broad variety of data sets from many different experiments and types of reactions, we can verify the predictions of quark models and make predictions about new baryon structures. Partial-wave analysis (PWA), in the context of quantum mechanics, refers to a technique for describing scattering problems by decomposing each physical observable into its constituent quantum components. The extracted partial-wave amplitudes can be used in further analyses by experi-mentalists; however, the current available partial-wave amplitudes for kaon-nucleon scattering are unable to describe scattering processes involving KL ̳0 beams, which means they are incorrect and need to be improved. The goal of this work was to carry out the first-ever multichannel partial-wave analysis of all available world data for KN [right arrow] KN reactions, where K represents a kaon (a meson containing an anti-strange quark) and N represents a nucleon (a proton or neutron). Specifically, we performed coupled-channel fits of data for the reactions, K+p [right arrow] K+p, K+n [right arrow] K+n, K+n [right arrow] K0p, K0p [right arrow] K+n and KL ̳0p [right arrow] KS ̳0p. The KL ̳0p [right arrow] KS ̳0p reaction also requires KN [right arrow] KN amplitudes, which were obtained from a prior Kent State University PWA. The ultimate goal was to find improved energy- dependent amplitudes for a simultaneous description of these reactions, to determine whether the available world data are self-consistent, and to search for possible exotic "pentaquarks" in the KN system. There are two main approaches found in the literature to extract partial-wave amplitudes. The first is called an energy-dependent PWA. In this approach, all the data for all reactions are analyzed simultaneously in a single model. The second approach is called a single-energy PWA, which has no inherent model bias. In the single-energy PWA, all data within a specified energy bin are fitted by approximating the partial-wave amplitudes as constants. The approach used in this work was initiated by first finding single-energy solutions, which were then fitted using a unitary, multichannel parametrization of the amplitudes. The resulting energy-dependent solutions were then used to constrain a new round of single-energy fits. This procedure was iterated until the energy-dependent solutions gave a good description of all the data. This work was motivated by a proposal to develop a KL ̳0 beam facility in Hall D at Jefferson Lab, which aims to search for hyperon resonances. An understanding of the underlying KN [right arrow] KN reactions is fundamental to that work.

Book Multichannel Partial wave Analysis of KN Scattering

Download or read book Multichannel Partial wave Analysis of KN Scattering written by Hongyu Zhang and published by . This book was released on 2008 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal of this dissertation is the experimental and phenomenological study of hyperon spectroscopy. In this work, we focus on the strangeness -1 hyperon resonances, the Λ* and Σ*s. Our ultimate goal is to obtain more reliable information about the properties of Λ* and Σ* resonances by carrying out a multichannel partial-wave analysis of KN scattering. Most prior energy-dependent partial-wave analyses of KN scattering assumed a simple parametrization for the partial-wave amplitudes. Such a parametrization introduces a model-dependent bias and results in a violation of unitarity of the partial-wave S-matrix. Thus, one objective of our work is to reduce this bias as much as possible by carrying out a constrained single-energy partial-wave analysis. The Crystal Ball Collaboration recently measured several important KN reactions. These high quality data have also fostered part of the motivation for our new partial-wave analysis. In this dissertation, we initialized our single-energy analysis of KN scattering using results of a global fit of previously published partial-wave amplitudes. Thereafter, we performed a multichannel fit of our single-energy amplitudes to determine an energy-dependent solution that is consistent with S-matrix unitarity. We iterated between single-energy and energy-dependent fits until we obtained an energy-dependent solution that agrees with the initial data. Our research included all available data for KN -> KN, KN -> π Λ, and KN -> π Σ reactions, covering the c. m. energy range 1480 to 2170 MeV.

Book Partial Wave Analysis of the Reactions K n and K n o Between 1850 and 2160 MeV

Download or read book Partial Wave Analysis of the Reactions K n and K n o Between 1850 and 2160 MeV written by Gazi Serajul Islam and published by . This book was released on 1969 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Partial wave Analyses of Hadron Scattering Below 2 GeV

Download or read book Partial wave Analyses of Hadron Scattering Below 2 GeV written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Center for Analysis of Particle Scattering (CAPS) in the Department of Physics at Virginia Polytechnic Institute and State University has analyzed basic two-body hadron reactions below 2 GeV for the last two decades. Reactions studied were nucleon-nucleon, pion-nucleon, K-nucleon and pion photoproduction systems. In addition to analyses of these systems, a computer graphics system (SAID) has been developed and disseminated to over 250 research institutions using VAX computers. The computer-interactive system for disseminating information on basic scattering reactions is also accessible to the physics community through TELNET on the VPI SU physics department VAX. 6 refs.

Book Two nucleon Higher Partial wave Scattering from Lattice QCD

Download or read book Two nucleon Higher Partial wave Scattering from Lattice QCD written by and published by . This book was released on 2016 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, we present a determination of nucleon-nucleon scattering phase shifts for L>0. The S, P, D and F phase shifts for both the spin-triplet and spin-singlet channels are computed for the first time with lattice Quantum ChromoDynamics. This required the design and implementation of novel lattice methods involving displaced sources and momentum-space cubic sinks. In order to demonstrate the utility of our approach, the calculations were performed in the SU(3)-flavor limit where the light quark masses have been tuned to the physical strange quark mass, corresponding to m[pi]=mKH"00~MeV. Two spatial volumes of V H"(3.5 fm)3 and V H"(4.6 fm)3 were used. Furthermore, the finite-volume spectrum is extracted from the exponential falloff of the correlation functions. Said spectrum is mapped onto the infinite volume phase shifts using the generalization of the Luscher formalism for two-nucleon systems.

Book The Universe of Fluctuations

    The Universe of Fluctuations

    Book Details:
  • Author : B. G. Sidharth
  • Publisher : Springer Science & Business Media
  • Release : 2006-03-30
  • ISBN : 1402037864
  • Pages : 193 pages

Download or read book The Universe of Fluctuations written by B. G. Sidharth and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Universe of Fluctuations: The Architecture of Spacetime and the Universe is a path-breaking work which proposes solutions to the impasse and crisis facing fundamental physics and cosmology. It describes a cosmological model based on fuzzy spacetime that has correctly predicted a dark-energy-driven acceleration of our expanding universe - with a small cosmological constant - at a time when the popular belief was quite the contrary. It describes how the Universe is made up of an underpinning of Planck oscillators in a Quantum Vacuum. This leads to, amongst other things, a characterization of gravitation as being distributional over the entire Universe, thereby providing an answer to a puzzle brought to light by Weinberg years ago and since overlooked. There is also a simple formula for the mass spectrum of all known elementary particles, based on QCD dynamics. Many other interesting ramifications and experimental tests for the future are also discussed. This apart, there is a brief survey of some of the existing theories. The book is accessible to junior and senior researchers in High Energy Physics and Cosmology as well as the serious graduate student in Physics.

Book Principles of Inorganic Chemistry

Download or read book Principles of Inorganic Chemistry written by Brian W. Pfennig and published by John Wiley & Sons. This book was released on 2015-03-30 with total page 761 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at senior undergraduates and first-year graduate students, this book offers a principles-based approach to inorganic chemistry that, unlike other texts, uses chemical applications of group theory and molecular orbital theory throughout as an underlying framework. This highly physical approach allows students to derive the greatest benefit of topics such as molecular orbital acid-base theory, band theory of solids, and inorganic photochemistry, to name a few. Takes a principles-based, group and molecular orbital theory approach to inorganic chemistry The first inorganic chemistry textbook to provide a thorough treatment of group theory, a topic usually relegated to only one or two chapters of texts, giving it only a cursory overview Covers atomic and molecular term symbols, symmetry coordinates in vibrational spectroscopy using the projection operator method, polyatomic MO theory, band theory, and Tanabe-Sugano diagrams Includes a heavy dose of group theory in the primary inorganic textbook, most of the pedagogical benefits of integration and reinforcement of this material in the treatment of other topics, such as frontier MO acid--base theory, band theory of solids, inorganic photochemistry, the Jahn-Teller effect, and Wade's rules are fully realized Very physical in nature compare to other textbooks in the field, taking the time to go through mathematical derivations and to compare and contrast different theories of bonding in order to allow for a more rigorous treatment of their application to molecular structure, bonding, and spectroscopy Informal and engaging writing style; worked examples throughout the text; unanswered problems in every chapter; contains a generous use of informative, colorful illustrations

Book Motion Mountain Vol 1 The Adventure of Physics

Download or read book Motion Mountain Vol 1 The Adventure of Physics written by Christoph Schiller and published by CreateSpace. This book was released on 2013-12-07 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: How high can animals jump? What are the fastest thrown balls? How fast can aeroplanes and butterflies fly? What does the sea level tell us about the sun? What are temperature and heat? What is self-organization? This free colour pdf on introductory physics guarantees to be entertaining, surprising and challenging on every page. The text presents the best stories, images, movies and puzzles in mechanics, gravity and thermodynamics - with little mathematics, always starting from observations of everyday life. This first volume also explains conservation laws and the reversibility of motion, explores mirror symmetry, and presents the principle of cosmic laziness: the principle of least action. This popular series has already more than 160 000 readers. If you are between the age of 16 and 106 and want to understand nature, you will enjoy it! To achieve wonder and thrill on every page, the first volume includes the various "colour of the bear" puzzles and the "picture on the wall" puzzle, explains about the many types of water waves, introduces the art of laying rope, tells about the the dangers of aeroplane toilets, explores the jumping height of different animals, presents the surprising motion of moguls on skiing slopes, explains why ultrasound imaging is not safe for a foetus, gives the ideal shape of skateboard half-pipes, estimates the total length of all capillaries in the human body, explains how it is possible to plunge a bare hand into molten lead, includes a film of an oscillating quartz inside a watch, includes the "handcuff puzzle" and the "horse pulling a rubber with a snail on it" puzzle, explains how jet pilots frighten civilians with sonic superbooms produced by fighter planes, presents the most beautiful and precise sundial available today, shows leap-frogging vortex rings, tells the story of the Galilean satellites of Jupiter, mentions the world records for running backwards and the attempts to break the speed sailing record, and tells in detail how to learn from books with as little effort as possible. Enjoy the reading!

Book Publications of Los Alamos Research

Download or read book Publications of Los Alamos Research written by Los Alamos National Laboratory and published by . This book was released on 1985 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Jews Christians and Polytheists in the Ancient Synagogue

Download or read book Jews Christians and Polytheists in the Ancient Synagogue written by Steven Fine and published by Routledge. This book was released on 2005-10-11 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the ways in which divergent ethnic, national and religious communities interacted with one another within the synagogue during the Greco-Roman period.

Book Coating and Drying Defects

Download or read book Coating and Drying Defects written by Edgar B. Gutoff and published by John Wiley & Sons. This book was released on 2006-08-25 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical guide for ensuring a defect-free coating and drying process For professionals in the coating and drying industry, the world is a demanding place. New, technically complex products such as fuel cell membranes, thin film batteries, solar cells, and RFID chips require coatings of extreme precision. With the bar raised so high, understanding how to troubleshoot and eliminate defects on a coating line is an essential skill for all personnel. Coating and Drying Defects, Second Edition provides manufacturing and quality control personnel, equipment operators and supervisors, and plant engineers and scientists with the full complement of proven tools and techniques for detecting, defining, and eliminating coating defects and operating problems, and for ensuring that they do not recur. Updating the valuable contents of the first edition, this practical Second Edition: Describes all major processes for coating and drying of continuous film on sheets or webs Covers technologies that have been recently developed to prevent defect formation and improve operating procedures Provides a rational framework within which to assess and analyze virtually any defect that may arise Offers step-by-step guidelines for conducting every phase of the troubleshooting process, including defect prevention Going beyond simply describing a disparate set of troubleshooting techniques, this unique guide arms readers with a systematic, nonmathematical methodology encompassing the entire coating operation, becoming an indispensable resource for manufacturing and quality-control personnel as well as plant engineers, polymer scientists, surface scientists, organic chemists, and coating scientists.

Book The Formation of Black Holes in General Relativity

Download or read book The Formation of Black Holes in General Relativity written by Demetrios Christodoulou and published by European Mathematical Society. This book was released on 2009 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1965 Penrose introduced the fundamental concept of a trapped surface, on the basis of which he proved a theorem which asserts that a spacetime containing such a surface must come to an end. The presence of a trapped surface implies, moreover, that there is a region of spacetime, the black hole, which is inaccessible to observation from infinity. Since that time a major challenge has been to find out how trapped surfaces actually form, by analyzing the dynamics of gravitational collapse. The present monograph achieves this aim by establishing the formation of trapped surfaces in pure general relativity through the focusing of gravitational waves. The theorems proved in this monograph constitute the first foray into the long-time dynamics of general relativity in the large, that is, when the initial data are no longer confined to a suitable neighborhood of trivial data. The main new method, the short pulse method, applies to general systems of Euler-Lagrange equations of hyperbolic type and provides the means to tackle problems which have hitherto seemed unapproachable. This monograph will be of interest to people working in general relativity, geometric analysis, and partial differential equations.