Download or read book Beamstrahlung and QED Backgrounds at Future Linear Colliders written by Daniel Vernon Schroeder and published by . This book was released on 1990 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantum Suppression of Beamstrahlung for Future E e Linear Collider written by and published by . This book was released on 1998 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beamstrahlung at interaction point may present severe limitations on linear collider performance. The approach to reduce this effect adopted for all current designs at 0.5 TeV range in center-of-mass energy will become more difficult and less effective at higher energy. We discuss the feasibility of an alternative approach, based on an effect known as quantum suppression of beamstrahlung, for future linear colliders at multi-TeV energy.
Download or read book Beamstrahlung and QED Backgrounds at Future Linear Colliders written by and published by . This book was released on 1990 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation is a detailed study of several aspects of beamstrahlung and related phenomena. The problem is formulated as the relativistic scattering of an electron from a strong but slowly varying potential. The solution is readily interpreted in terms of a classical electron trajectory, and differs from the solution of the corresponding classical problem mainly in the effect of quantum recoil due to the emission of hard photons. When the general solution is expanded for the case of an almost-uniform field, the leading term is identical to the well-known formula for quantum synchrotron radiation. The first non-leading term is negligible in all cases of interest where the expansion is valid. In applying the standard synchrotron radiation formula to the beamstrahlung problem, the effects of radiation reaction on the emission of multiple photons can be significant for some machine designs. Another interesting feature is the helicity dependence of the radiation process, which is relevant to the case where the electron beam is polarized. The inverse process of coherent electron-positron pair production by a beamstrahlung photon is a potentially serious background source at future colliders, since low-energy pairs can exit the bunch at a large angle. Pairs can also be produced incoherently by the collision of the two photons, either real or virtual. The rates, spectra, and angular distributions for both the coherent and incoherent processes are estimated here. At a 1/2 TeV machine the incoherent process will be more common, resulting in roughly 106 pairs per bunch crossing. One member of each pair is always pushed outward, at an angle determined by its energy, by the field of the oncoming bunch. In addition, a small number of pairs are initially produced with a comparable or larger angle.
Download or read book Beamstrahlung and the QED QCD Backgrounds in Linear Colliders written by and published by . This book was released on 1992 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intense radiation, called beamstrahlung, during the collision of ee− beams in a linear collider, is reviewed, with attention to the influence of beam-beam disruption on the beamstrahlung spectrum. We then discuss the various detector backgrounds induced by these hard beamstrahlung photons, as well as the Weiszacker-Williams photon, through various QED and QCD processes, namely the coherent and incoherent ee− pair creation and the hadron production and minijet yields.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantum Suppression of Beamstrahlung for Future E e Linear Colliders written by and published by . This book was released on 1998 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beamstrahlung at interaction point may present severe limitations on linear collider performance. The approach to reduce this effect adopted for all current designs at a center-of-mass energy of 0.5 TeV will become more difficult and less effective at higher energy. We discuss the feasibility of an alternative approach, based on an effect known as quantum suppression of beamstrahlung, for future linear colliders at multi-TeV energy.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Directions For The Decade Snowmass 1990 Proceedings Of The 1990 Summer Study On High Energy Physics written by Berger Edmond L and published by World Scientific. This book was released on 1992-09-16 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of the Superconducting Super Collider and other new technologies, coupled with the development of particle astrophysics and other non-accelerator based physics, research in high energy particle physics in the nineties promises to break into new and exciting frontiers. To chart the directions and opportunities for this new decade, the 1990 Summer Study on High Energy Physics was organized in Snowmass, Colorado. Like previous Snowmass Summer Studies, it plays a key role in shaping research directions and in drawing the particle physics community together.This book of the proceedings examines the full spectrum of important scientific issues and opportunities in high energy particle physics in the decade of the 1990's, including research at existing and anitcipated hadron-hadron, e+e-, and ep colliders; research at fixed-target facilities; the scientific potential of possible new facilities such as B factories; particle astrophysics and non-accelerator based physics; and accelerator and detector initiatives. It also discusses the physics and technical aspects of the initial Superconducting Super Collider experimental program.This volume, therefore, offers a captivating glimpse into the future of high energy physics, and makes essential reading for all physicists interested in assessing the exciting new research opportunities the future technologies would bring.
Download or read book Quantum Suppression of Beamstrahlung for Future Linearcolliders written by and published by . This book was released on 1998 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beamstrahhmg at interaction point may present severe lim- itations on linear collider performance. The approach to re- duce this effect adopted for all current designs at 0.5 TeV will become more difficult and less effective at higher en- ergy. We discuss the feasibility of an alternative approach, based on an effect known as quantum suppression of beam- strahlung, for future linear colliders at multi-TeV energy.
Download or read book Photon photon Collisions 9th International Workshop On Photon photon Collisions written by D O Caldwell and published by World Scientific. This book was released on 1992-12-31 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings blend current and future two-photon physics. Developments since the last Photon-Photon Workshop four years ago are summarized, and the future of the field is projected, not only at existing accelerators, but also at heavy-ion colliders B-factories, and especially linear colliders with back-scattered laser beams.
Download or read book International Workshop on Final Focus and Interaction Regions of Next Generation Linear Colliders written by and published by . This book was released on 1992 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first day of the workshop was devoted to four plenary issues'' talks, one for each working group: Beam-Beam Interaction, Detector, Hardware, and Optical Design. The last day was devoted to plenary talks summarizing the activities of the working groups. Each of the three remaining days there, was a short morning plenary devoted to a brief summary of the preceding day and an announcement of planned working group discussions for that day. The transparencies for the issues'' and summary'' talks are included in this volume, along with some remarks from the working group chairpersons. Very briefly, the beam-beam group continued to address the quantitative study of QED induced backgrounds, and attempted to better understand the nature and prevalence of QCD millijets. The detector group attempted to identify the impact on masking and detector design of the beam-beam backgrounds, the synchrotron radiation induced backgrounds from beam halos and muon backgrounds produced primarily in collimators. Nanosecond timing elements needed in conjunction with multi-bunch operation were discussed. The hardware group addressed the problem of magnet design and support, especially the final doublet magnets suspended within the detector environment, and instrumentation issues, such as high resolution beam position monitors. The optics group discussed new final focus system ideas, collimator design, and improvement of beamline tolerances. If you were not here to participate, we hope that this volume will help you in your orientation to these problems.
Download or read book Testing Nonlinear QED at the Future Linear Collider with an Intense Laser written by Anthony Hartin and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Commemorating The Past And Looking Towards The Future Ocpa 2000 Proceedings Of The Third Joint Meeting Of Chinese Physicists Worldwide written by Ngee-pong Chang and published by World Scientific. This book was released on 2002-08-14 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is not just a conference proceedings covering the full spectrum of physics disciplines. It is also a historic retrospective on the past generation of giants in Chinese physics. It covers the historical tributes by Nobel Laureates Lee and Yang and others to the life and works of Professors Ta-You Wu, Chien-Shiung Wu and Xie Xi-de. In the words of the title in Chinese, as we drink the water let us ponder the source.
Download or read book Commemorating the Past and Looking Towards the Future written by Ngee-pong Chang and published by World Scientific. This book was released on 2002 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is not just a conference proceedings covering the full spectrum of physics disciplines. It is also a historic retrospective on the past generation of giants in Chinese physics. It covers the historical tributes by Nobel Laureates Lee and Yang and others to the life and works of Professors Ta-You Wu, Chien-Shiung Wu and Xie Xi-de. In the words of the title in Chinese, as we drink the water let us ponder the source.
Download or read book Proceedings of the XXVI International Conference on High Energy Physics written by James R. Sanford and published by . This book was released on 1993 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Fourth Workshop on Electron Electron Collisions at TeV Energies written by Clemens A. Heusch and published by . This book was released on 2003 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
