Download or read book Study of Electron positron Interactions at the Stanford Linear Accelerator Center written by and published by . This book was released on 1991 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report briefly discusses experiments on the TPC and SLD projects dealing with electron-positron interactions. (LSP).
Download or read book Experiment Studies of Electron positron Interactions at the Stanford Linear Accelerator Center Progress Report Calendar Year 1993 written by and published by . This book was released on 1993 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The High Energy Physics group at the University of Massachusetts has continued its' program of experimental studies of electron-positron interactions at the Stanford Linear Accelerator Center (SLAC). The group activities have included: analysis of data taken between 1982 and 1990 with the TPC detector at the PEP facility, continuing data collection and data analysis using the SLC/SLD facility, planning for the newly approved B-factory at SLAC, and participation in design studies for future high energy linear colliders. This report will briefly summarize these activities.
Download or read book Study of Four lepton Final States in Electron positron Interactions at 29 GeV written by Assimina Petradza and published by . This book was released on 1989 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Positron electron storage ring project Stanford Linear Accelerator Center Stanford California written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Positron electron Storage Ring Project Stanford written by and published by . This book was released on 1976 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Two Prong Two Photon Events at the Z0 Resonance written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of electron-positron scattering leading to two electron-positron pairs via a two-photon interaction has been carried out at the Stanford Linear Accelerator Center (SLAC). The case where one pair is observed in the detector was investigated. These events were produced at the SLAC Linear Collider (SLC) operating in the center-of-mass energy range from 89.2 to 9.30 GeV. The data was collected using the Mark II detector. Two-photon interactions are described by the theory of quantum electrodynamics (QED). Such processes can be a significant background to new particle searches; consequently, and understanding of their production is imperative. A deviation from the event rate predicted by QED might indicate the existence of new particles. The event rate may also be useful as a luminosity monitor during data collection. The data sample from the Mark II is searched for events which have features indicative of two-photon events. For comparison with theory, the Berends, Daverveldt, and Keiss Monte Carlo event generator is used to simulate events according to QED theory. The data is compared to the theoretical predictions. Given the low event statistics from the SLC data run, the results are consistent with the QED theoretical prediction. However, due to the low statistics, this measurement cannot be used to indicate non-deviation from QED predictions.
Download or read book The PEP Electron positron Ring written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The first stage of the positron-electron-proton (PEP) colliding-beam system which has been under joint study by a Lawrence Berkeley Laboratory-Stanford Linear Accelerator Center team for the past two years, will be the electron-positron storage ring. The physics justification for the ee− ring is summarized briefly and the proposed facility is described. The ring will have six arcs having gross radii of about 220 m and six interaction regions located at the centers of straight sections about 130 m long. The longitudinal distance left free for experimental apparatus at the intersection regions will be 20 m. The range of operating beam energies will be from 5 GeV to 15 GeV. The design luminosity at 15 GeV will be 1032cm/sup minus 2/s/sup minus 1/, and the luminosity will vary approximately as the square of the beam energy. Alternative methods under consideration for adjusting the beam cross-section are discussed. The designs of the storage ring subsystems and of the conventional facilities including the experimental halls at the interaction regions are described.
Download or read book Electron Positron Physics at the Z written by M. G. Green and published by CRC Press. This book was released on 1998 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive summary of studies of the Z boson in electron positron interactions. The results that have been obtained have achieved unprecedented accuracy and have firmly established the Electroweak Standard Model as the cornerstone of our current understanding of modern particle physics. The book introduces the background to the Standard Model and the role of the Z boson and describes briefly the accelerators and experiments involved in these results. The five main chapters deal with the detailed measurements of the electroweak parameters of the Z, the study of QCD, heavy quark physics, tau lepton physics and the search for new particles. Each chapter ends with a summary and outlook to prospects of future accelerators. Most of the results are from the first six years running at the first phase of electron positron collider, LEP, at energies corresponding to the Z mass, but results from the SLAC Linear Collider and some new results at higher energies are also included.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-04 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Nonlinear QED Effects in Interactions of Terawatt Laser with High Energy Electron Beam written by Konstantin Dmitrievich Shmakov and published by . This book was released on 1997 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Coherent Tune Shift Caused by Electron Cloud in Positron Storage Rings written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We discuss the transverse betatron tune shift of the coherent dipole motion of a beam interacting with an electron cloud. A positron beam which passes through a frozen charge distribution experiences an electric field, which shifts its tune in the positive direction. The electrons in the actual cloud are not frozen, but move during the bunch passage. Thus, the electron distribution varies due to the interaction with the beam and it is ''soft''. We study the dipole tune shift of the beam interacting with such a ''soft'' charge distribution.
Download or read book Annual Report to Congress written by U.S. Atomic Energy Commission and published by . This book was released on 1972 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report to Congress of the Atomic Energy Commission written by U.S. Atomic Energy Commission and published by . This book was released on 1972 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Authorizing Legislation written by United States. Congress. Joint Committee on Atomic Energy and published by . This book was released on 1976 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1963 Summer Study Report written by Karl Berkelman and published by . This book was released on 1962 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Next Generation of Electron positron Colliding Beam Machines written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The contribution of electron-positron colliding beam experiments to high-energy physics in the 1970's has been prodigious. From the research done with the two highest-energy ee− machines of the present generation of these devices, have come such things as the discovery and illumination of the properties of the psi family, charmed particles, a new heavy lepton, non-ambigious evidence for hadronic jets, etc. The rapid pace of new developments in physics from such machines comes about for two reasons. First, the electron-positron annihilation process at present energies is particularly simple and well understood, making the problem of determining the quantum numbers and properties of new particles particularly simple. Second, in electron-positron annihilation all final states are on a relatively equal footing, and small production cross sections are compensated for by a lack of confusing background. For example, the rate of production of charmed particles at the SPEAR storage ring at SLAC and the DORIS storage ring at DESY is 3 or 4 orders of magnitude less than the rate of production at FNAL and the SPS. Yet these particles were first found at the storage rings where the background cross sections are comparable to the signal cross section, and have not yet been observed directly by their hadronic decays at the proton machines where the background cross sections are 4 orders of magnitude larger than the signal cross sections. The machines PEP at SLAC and PETRA at DESY will soon be operating at 35 to 40 GeV cm to explore new regions of energy. Studies of electron-positron annihilation at much higher energies than presently planned have a great deal to teach, not only about particle structure and dynamics, but also about the nature of the weak interaction. Some of the physics which can be done with such machines is discussed with a view toward getting an idea of the minimum required energy for the new generation of colliding beam devices.
Download or read book Hearings and Reports on Atomic Energy written by United States. Congress. Joint Committee on Atomic Energy and published by . This book was released on 1975 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
