Download or read book Preliminary Measurement of D sup D Production and D sup Spin Alignment at the Z Resonance written by and published by . This book was released on 1996 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: USING HADRONIC Z° DECAYS RECORDED BY THE SLD EXPERIMENT AT SLAC, WE HAVE MEASURED THE VECTOR/(VECTOR+PSEUDOSCALAR) PRODUCTION RATIO, V/(V + P), FOR THE PROMPT CHARMED MESONS D{sup *+} AND D. USING THE CHANNELS D{sup *+} → D°?+{sub S}, D° → K−?+, AND D° → K−?+?−?+, AS WELL AS D+ → K−?+?−, WE FIND V/(V + P) = 0.61 +/- 0.09(STAT.) +/- 0.03(BR), WHICH DISFAVORS THE EXPECTATION OF 0.75 FROM NAIVE SPIN COUNTING. WE HAVE ALSO MEASURED THE DEGREE OF D{sup *+} SPIN ALIGNMENT ALONG THE FLIGHT DIRECTION AND FIND IT TO BE CONSISTENT WITH ZERO FOR D{sup *+} FRACTIONAL MOMENTA x = E{sub D*}/E{sub BEAM}
Download or read book Preliminary Measurement of D D Production and D Spin Alignment at the Z Resonance written by and published by . This book was released on 1996 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using hadronic Z° decays recorded by the SLD experiment at SLAC, we have measured the vector/(vector+pseudoscalar) production ratio, V/(V+P), for the prompt charmed mesons, D{sup *+} and D. Using the channels D{sup *+}→D°?+{sub s}, D°→ K−?+, and D°→ K{sup - }?+?−?+, as well as D+??2192? K−?+?−, we find V/(V+P) = 0.57 ± 0.07 ({ital stat})± 0.02({ital BR}), which disfavors the expectations of 0.75 from naive spin counting. We have also measured the degree of D{sup *+} spin alignment along the flight direction and find it to be consistent with the zero for D{sup *+} fractional momenta? {triple_bond} E{sub D{sup *}}/D{sub {ital beam}}
Download or read book Preliminary Measurement of D sup D Production and D sup Spin Alignment at the Z sup 0 Resonance written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: USING HADRONIC Z[sup 0] DECAYS RECORDED BY THE SLD EXPERIMENT AT SLAC, WE HAVE MEASURED THE VECTOR/(VECTOR+PSEUDOSCALAR) PRODUCTION RATIO, V/(V+ P), FOR THE PROMPT CHARMED MESONS D[sup*+] AND D[sup+]. USING THE CHANNELS D[sup*+][yields] D[sup 0][pi][sup+][sub S], D[sup 0][yields] K[sup -][pi][sup+], AND D[sup 0][yields] K[sup -][pi][sup+][pi][sup -][pi][sup+], AS WELL AS D[sup+][yields] K[sup -][pi][sup+][pi][sup -], WE FIND V/(V+ P)= 0.61+/- 0.09(STAT.)+/- 0.03(BR), WHICH DISFAVORS THE EXPECTATION OF 0.75 FROM NAIVE SPIN COUNTING. WE HAVE ALSO MEASURED THE DEGREE OF D[sup*+] SPIN ALIGNMENT ALONG THE FLIGHT DIRECTION AND FIND IT TO BE CONSISTENT WITH ZERO FOR D[sup*+] FRACTIONAL MOMENTA x= E[sub D*]/E[sub BEAM][gt] 0.2. We compare these results with QCD model predictions.
Download or read book Introduction to High Energy Physics written by Donald H. Perkins and published by Cambridge University Press. This book was released on 2000-04-13 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly-regarded text provides a comprehensive introduction to modern particle physics. Extensively rewritten and updated, this 4th edition includes developments in elementary particle physics, as well as its connections with cosmology and astrophysics. As in previous editions, the balance between experiment and theory is continually emphasised. The stress is on the phenomenological approach and basic theoretical concepts rather than rigorous mathematical detail. Short descriptions are given of some of the key experiments in the field, and how they have influenced our thinking. Although most of the material is presented in the context of the Standard Model of quarks and leptons, the shortcomings of this model and new physics beyond its compass (such as supersymmetry, neutrino mass and oscillations, GUTs and superstrings) are also discussed. The text includes many problems and a detailed and annotated further reading list.
Download or read book Measurement of A sub B at the Z Resonance Using a Jet charge Technique written by and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a new preliminary measurement of the parity-violation parameter A{sub b} using a self-calibrating jet-charge technique. In the SLD experiment they observe hadronic decays of Z° bosons produced in collisions between longitudinally polarized electrons and unpolarized positrons a the SLAC Linear Collider. A sample of b{anti b} events is selected using the topologically reconstructed mass of B hadrons. From the 1997--1998 data sample of approximately 200,000 hadronic Z° decays, they obtain A{sub b} = 0.824 " 0.031(stat) " 0.032(syst). Together with the previous 1993--1995 result, it yields a preliminary combined SLD jet-charge measurement of: A{sub b} = 0.849 " 0.026(stat) " 0.031(syst).
Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 1364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Surface Plasmon Resonance written by Richard B. M. Schasfoort and published by Royal Society of Chemistry. This book was released on 2017-05-30 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface plasmon resonance (SPR) plays a dominant role in real-time interaction sensing of biomolecular binding events, this book provides a total system description including optics, fluidics and sensor surfaces for a wide researcher audience.
Download or read book Magnetic Resonance Imaging written by Robert W. Brown and published by John Wiley & Sons. This book was released on 2014-06-23 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: New edition explores contemporary MRI principles and practices Thoroughly revised, updated and expanded, the second edition of Magnetic Resonance Imaging: Physical Principles and Sequence Design remains the preeminent text in its field. Using consistent nomenclature and mathematical notations throughout all the chapters, this new edition carefully explains the physical principles of magnetic resonance imaging design and implementation. In addition, detailed figures and MR images enable readers to better grasp core concepts, methods, and applications. Magnetic Resonance Imaging, Second Edition begins with an introduction to fundamental principles, with coverage of magnetization, relaxation, quantum mechanics, signal detection and acquisition, Fourier imaging, image reconstruction, contrast, signal, and noise. The second part of the text explores MRI methods and applications, including fast imaging, water-fat separation, steady state gradient echo imaging, echo planar imaging, diffusion-weighted imaging, and induced magnetism. Lastly, the text discusses important hardware issues and parallel imaging. Readers familiar with the first edition will find much new material, including: New chapter dedicated to parallel imaging New sections examining off-resonance excitation principles, contrast optimization in fast steady-state incoherent imaging, and efficient lower-dimension analogues for discrete Fourier transforms in echo planar imaging applications Enhanced sections pertaining to Fourier transforms, filter effects on image resolution, and Bloch equation solutions when both rf pulse and slice select gradient fields are present Valuable improvements throughout with respect to equations, formulas, and text New and updated problems to test further the readers' grasp of core concepts Three appendices at the end of the text offer review material for basic electromagnetism and statistics as well as a list of acquisition parameters for the images in the book. Acclaimed by both students and instructors, the second edition of Magnetic Resonance Imaging offers the most comprehensive and approachable introduction to the physics and the applications of magnetic resonance imaging.
Download or read book Lectures on QCD written by Frieder Lenz and published by Springer. This book was released on 1997-10-15 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume set Lectures on QCD provides an introductory overview of Quantum Chromodynamics, the theory of strong interactions. In a series of pedagogically written articles based on lectures given over the years to graduate students, the fundamentals of QCD are discussed and significant application areas are described. The field-theoretic basis of QCD is the focus of the first volume, while the application of QCD to the phenomenology of strong interactions forms the subject of the second volume.
Download or read book Diagnostic Radiology Physics written by International Atomic Energy Agency and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is aimed at students and teachers involved in programmes that train medical physicists for work in diagnostic radiology. It provides a comprehensive overview of the basic medical physics knowledge required in the form of a syllabus for the practice of modern diagnostic radiology. This makes it particularly useful for graduate students and residents in medical physics programmes. The material presented in the publication has been endorsed by the major international organizations and is the foundation for academic and clinical courses in both diagnostic radiology physics and in emerging areas such as imaging in radiotherapy.
Download or read book Science Abstracts written by and published by . This book was released on 1955 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Z Physics at LEP 1 written by Guido Altarelli and published by . This book was released on 1989 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spin Current written by Sadamichi Maekawa and published by Oxford University Press. This book was released on 2017 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a new branch of physics and technology, called spin-electronics or spintronics, the flow of electrical charge (usual current) as well as the flow of electron spin, the so-called "spin current", are manipulated and controlled together. This book is intended to provide an introduction and guide to the new physics and applications of spin current.
Download or read book INIS Atomindex written by and published by . This book was released on 1987 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quaternary Dating Methods written by Mike Walker and published by John Wiley & Sons. This book was released on 2013-04-30 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This introductory textbook introduces the basics of dating, the range of techniques available and the strengths and limitations of each of the principal methods. Coverage includes: the concept of time in Quaternary Science and related fields the history of dating from lithostratigraphy and biostratigraphy the development and application of radiometric methods different methods in dating: radiometric dating, incremental dating, relative dating and age equivalence Presented in a clear and straightforward manner with the minimum of technical detail, this text is a great introduction for both students and practitioners in the Earth, Environmental and Archaeological Sciences. Praise from the reviews: "This book is a must for any Quaternary scientist." SOUTH AFRICAN GEOGRAPHICAL JOURNAL, September 2006 “...very well organized, clearly and straightforwardly written and provides a good overview on the wide field of Quaternary dating methods...” JOURNAL OF QUATERNARY SCIENCE, January 2007
Download or read book Electromagnetics in Magnetic Resonance Imaging written by Christopher M. Collins and published by Morgan & Claypool Publishers. This book was released on 2016-03-01 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past few decades, Magnetic Resonance Imaging (MRI) has become an indispensable tool in modern medicine, with MRI systems now available at every major hospital in the developed world. But for all its utility and prevalence, it is much less commonly understood and less readily explained than other common medical imaging techniques. Unlike optical, ultrasonic, X-ray (including CT), and nuclear medicine-based imaging, MRI does not rely primarily on simple transmission and/or reflection of energy, and the highest achievable resolution in MRI is orders of magnitude smaller that the smallest wavelength involved. In this book, MRI will be explained with emphasis on the magnetic fields required, their generation, their concomitant electric fields, the various interactions of all these fields with the subject being imaged, and the implications of these interactions to image quality and patient safety. Classical electromagnetics will be used to describe aspects from the fundamental phenomenon of nuclear precession through signal detection and MRI safety. Simple explanations and Illustrations combined with pertinent equations are designed to help the reader rapidly gain a fundamental understanding and an appreciation of this technology as it is used today, as well as ongoing advances that will increase its value in the future. Numerous references are included to facilitate further study with an emphasis on areas most directly related to electromagnetics.
