Download or read book Omega meson Production by Virtual Photons written by H. Meyer and published by . This book was released on 1977 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deeply Virtual and Exclusive Production of the Omega Meson written by S. Morrow and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Exclusive {omega} electroproduction off the proton was measured at the highest possible four-momentum transfer with the (close to) 6 GeV beam now available at CEBAF. Cross sections are presented, together with an analysis of the {omega} spin density matrix elements. Indications are that {pi}{sup 0} exchange in the t-channel (or rather the exchange of the corresponding saturating Regge trajectory) seems to dominate the process {gamma}*p {yields} {omega}p, even for photon virtuality Q{sup 2} as large as 5 GeV{sup 2}. Contributions of the handbag type, related to Generalized Parton Distributions in the nucleon, are therefore difficult to extract from this particular process.

Download or read book Electroproduction of Omega Mesons written by James T Linnemann and published by . This book was released on 1978 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diffractive Meson Production from Virtual Photons with Odd Charge parity Exchange written by and published by . This book was released on 1999 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Mesons and Quarks written by A. B. Santra and published by Alpha Science Int'l Ltd.. This book was released on 2004 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This monograph "Mesons and Quarks" includes a wide range of topics in the frontier areas of research in the overlapping field of nuclear and particle physics. It discusses various aspects of Quantum Chromodynamics (QCD) at different regimes of energy and density."--BOOK JACKET.

Download or read book Dynamical Coupled Channel Approach to Omega Meson Production written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamical coupled channel approach of Matsuyama, Sato, and Lee is used to study the $\omega$--meson production induced by pions and photons scattering from the proton. The parameters of the model are fixed in a two-channel (\omega N, \pi N) calculation for the non-resonant and resonant contributions to the $T$ matrix by fitting the available unpolarized differential cross section data. The polarized photon beam asymmetry is predicted and compared to existing data.

Download or read book Properties of the Omega Meson from Kappa Rho Lambda Omega written by and published by . This book was released on 1963 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to Data in Elementary Particle Physics written by G. P. Yost and published by . This book was released on 1986 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of Vector Meson and Direct Photon Production at Large Transverse Momentum at the CERN ISR Cross Section written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The production at large transverse momentum of low mass electron pairs was investigated at the CERN Intersecting Storage Rings using lithium/xenon transition radiation detectors and liquid argon calorimeters. Production of the vector mesons rho°, .omega.°, and phi was observed with cross sections consistent with the assumptions that rho°, .omega.°, and .pi.° production are nearly equal at large p/sub t/ and that phi production is suppressed by about an order of magnitude relative to rho° and .omega.° production. The observed low mass virtual photon continuum between masses of 200 and 500 MeV was consistent with estimates of Dalitz decays plus predictions of the vector dominance model. The measured cross section for virtual photon production enabled a limit of (0.5 +- 1.0) percent to be placed on the ratio of direct real photon production to .pi.° production.

Download or read book The Mysterious World of Fundamental Particles written by Mohit Joshi and published by MOHIT JOSHI. This book was released on 2015-02-20 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the following topics: Discovery of Fundamental Particles | Classification of Fundamental Particles | Quarks | Leptons | Antiparticles | Bosons | Interactions | Centre-of-mass Energy | Virtual Photons | Electromagnetic Interactions | Gluons and Colour Charges | W Boson and Weak Processes | Coupling and Coupling Constants | Hadrons | Baryons and Mesons | Hyperfine Splitting | Discovery of Partons inside Nucleons | Baryon Octet, Baryon Decuplet, Meson Nonet | Strangeness | Isospin | Baryon Octet with spin 1/2 | Baryon Decuplet with spin 3/2 | Meson Nonet with spin 0 | Meson Nonet with spin 1 | Discovery of Strange Quark | Examples of the Decays | Cosmic Rays and Muons | Parity | Charge conjugation | CP Operation | Cross-Section and Resonance | Branching Ratio | Discovery of W and Z bosons | Accelerators and Colliders | Discovery of Vector Mesons | Quarkonium | Omega Baryons | Production and Separation of Secondary Beams | Examples of Interactions | Neutral K Meson | D Mesons | B Mesons | Supermultiplets | Charmed and Bottom Lambda Baryons | Charmed and Bottom Sigma Baryons | Charmed and Bottom Xi Baryons | Charmed and Bottom Omega Baryons | Positive Bottom Sigma-star Baryon | Neutral Bottom Xi-star Baryon | The Top Quark | V Particles | Higgs Boson | Neutrinos | Mean Lifetime | Electroweak Unification | Grand Unified Theory | Supersummetry | The Big Bang Theory

Download or read book The Rise of the Standard Model written by Lillian Hoddeson and published by Cambridge University Press. This book was released on 1997-11-13 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: Editors Laurie Brown, Max Dresden, Lillian Hoddeson and Michael Riordan have brought together a distinguished group of elementary particle physicists and historians of science to explore the recent history of particle physics. Based on a conference held at Stanford University, this is the third volume of a series recounting the history of particle physics and offers the most up-to-date account of the rise of the Standard Model, which explains the microstructure of the world in terms of quarks and leptons and their interactions. Major contributors include Steven Weinberg, Murray Gell-Mann, Michael Redhead, Silvan Schweber, Leon Lederman and John Heilbron. The wide-ranging articles explore the detailed scientific experiments, the institutional settings in which they took place, and the ways in which the many details of the puzzle fit together to account for the Standard Model.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book From Atoms to Higgs Bosons written by Chary Rangacharyulu and published by CRC Press. This book was released on 2019-06-14 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: The announcement in 2012 that the Higgs boson had been discovered was understood as a watershed moment for the Standard Model of particle physics. It was deemed a triumphant event in the reductionist quest that had begun centuries ago with the ancient Greek natural philosophers. Physicists basked in the satisfaction of explaining to the world that the ultimate cause of mass in our universe had been unveiled at CERN, Switzerland. The Standard Model of particle physics is now understood by many to have arrived at a satisfactory description of entities and interactions on the smallest physical scales: elementary quarks, leptons, and intermediary gauge bosons residing within a four-dimensional spacetime continuum. Throughout the historical journey of reductionist physics, mathematics has played an increasingly dominant role. Indeed, abstract mathematics has now become indispensable in guiding our discovery of the physical world. Elementary particles are endowed with abstract existence in accordance with their appearance in complicated equations. Heisenberg’s uncertainty principle, originally intended to estimate practical measurement uncertainties, now bequeaths a numerical fuzziness to the structure of reality. Particle physicists have borrowed effective mathematical tools originally invented and employed by condensed matter physicists to approximate the complex structures and dynamics of solids and liquids and bestowed on them the authority to define basic physical reality. The discovery of the Higgs boson was a result of these kinds of strategies, used by particle physicists to take the latest steps on the reductionist quest. This book offers a constructive critique of the modern orthodoxy into which all aspiring young physicists are now trained, that the ever-evolving mathematical models of modern physics are leading us toward a truer understanding of the real physical world. The authors propose that among modern physicists, physical realism has been largely replaced—in actual practice—by quasirealism, a problematic philosophical approach that interprets the statements of abstract, effective mathematical models as providing direct information about reality. History may judge that physics in the twentieth century, despite its seeming successes, involved a profound deviation from the historical reductionist voyage to fathom the mysteries of the physical universe.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Properties of QCD Matter at High Baryon Density written by Xiaofeng Luo and published by Springer Nature. This book was released on 2023-01-01 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the discussions by renown researchers on questions emerged during transition from the relativistic heavy-ion collider (RHIC) to the future electron ion collider (EIC). Over the past two decades, the RHIC has provided a vast amount of data over a wide range of the center of mass energies. What are the scientific priorities, after RHIC is shut down and turned to the future EIC? What should be the future focuses of the high-energy nuclear collisions? What are thermodynamic properties of quantum chromodynamics (QCD) at large baryon density? Where is the phase boundary between quark-gluon-plasma and hadronic matter at high baryon density? How does one make connections from thermodynamics learned in high-energy nuclear collisions to astrophysical topics, to name few, the inner structure of compact stars, and perhaps more interestingly, the dynamical processes of the merging of neutron stars? While most particle physicists are interested in Dark Matter, we should focus on the issues of Visible Matter! Multiple heavy-ion accelerator complexes are under construction: NICA at JINR (4 ~ 11 GeV), FAIR at GSI (2 ~ 4.9 GeV SIS100), HIAF at IMP (2 ~ 4 GeV). In addition, the heavy-ion collision has been actively discussed at the J-PARC. The book is a collective work of top researchers from the field where some of the above-mentioned basic questions will be addressed. We believe that answering those questions will certainly advance our understanding of the phase transition in early universe as well as its evolution that leads to today's world of nature.

Download or read book Electromagnetic Interactions of Hadrons written by A. Donnachie and published by Springer. This book was released on 2014-07-08 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: While electromagnetic interactions were first used to probe the structure of elementary particles more than 20 years ago, their importance has only become fully evident in the last 10 years. In the resonance region, photo production experiments have provided clear evidence for simple quark model ideas, and confirmed the Melosh-transformed SU(6)w as a relevant symmetry classification. At higher energies, their most striking feature is their similarity to hadron-induced reactions, and they have provided fresh insight into the ideas developed to explain strong-interaction physics. New dimensions are added by taking the photon off mass shell, both in the spacelike region, where the development of high-energy electron and muon beams has led to the discovery and study of scaling and the intro duction of "partons," and even more dramatically in the timelike region, where the development of high-energy electron-positron storage rings has led to the exciting discoveries of the last four years. In view of the immense interest stimulated by these developments, an extensive review of our present state of knowledge is both timely and useful. Because of the very wide range of the subject, a cooperative venture presents itself as the most suitable format and is the one we have adopted here. The emphasis throughout is primarily, but not entirely, on phenomenology, concentrating on describing the main features of the experimental data and on the theoretical ideas used directly in their inter pretation.