Physics At High Energy Photon Photon Colliders
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Two-photon Physics: From DaΦne To Lep200 And Beyond
| Author | : F Kapusta |
| Publisher | : World Scientific |
| Total Pages | : 358 |
| Release | : 1994-12-20 |
| Genre | : |
| ISBN | : 981455040X |
Two-photon physics, i.e. photon-photon collisions in electron-positron colliders, a relatively new field in elementary particle physics, has become very popular in the last 20 years. Many experiments have been performed in this field, and the theoretical implications (in particular in quantum chromodynamics) have been studied in much detail. Nine international workshops devoted to two-photon physics have taken place between 1973 and 1992.This meeting was particularly timely, since a new generation of electron-positron colliders is presently being built or planned. These colliders will involve a large spectrum of beam energies, but their common characteristics should be a high particle flux (luminosity). This should allow for measuring many new phenomena as well as for studying known processes with much higher precision than before. Particularly promising is the prospect of building a dedicated high-energy photon collider; this should become possible using a laser technique allowing for the “conversion” of a linear electron beam into a photon beam.Over 60 physicists (both experimentalists and theorists), mainly from European countries (France, Britain, Italy, Germany, Russia, as well as Sweden and Switzerland), discussed these new possibilities at the above meeting. Over 30 talks were presented and many extended debates took place.
Photon 2007: Proceedings of the International Conference on the Structure and Interactions of the Photon, Including the 17th International Workshop on Photon-Photon Collisions Andthe International Workshop on High Energy Photon Linear Colliders, Paris, France 9-13 July 2007
| Author | : International Conference on the Structure and Interactions of the Photon |
| Publisher | : |
| Total Pages | : 330 |
| Release | : 2008 |
| Genre | : |
| ISBN | : |
Physics Opportunities at a Photon--Photon Collider
| Author | : |
| Publisher | : |
| Total Pages | : 5 |
| Release | : 2002 |
| Genre | : |
| ISBN | : |
The advent of back-scattered laser beams for ee− colliders will allow detailed studies of a large array of high energy [gamma][gamma] and [gamma]e collision processes with polarized beams. These include tests of electroweak theory in photon-photon annihilation such as [gamma][gamma] 2!WW−, [gamma][gamma] 2!Higgs bosons, and higher-order loop processes, such as [gamma][gamma] 2![gamma][gamma], H°Z° and ZZ: Methods for measuring the anomalous magnetic and quadrupole moments of the W and Z gauge bosons to high precision in polarized electron-photon and photon-photon collisions are discussed. Since each photon can be resolved into a W+W− pair, high energy photon-photon collisions can also provide a remarkably background-free laboratory for studying WW collisions and annihilation. I also review high energy [gamma][gamma] and e[gamma] tests of quantum chromodynamics, including the production of two gluon jets in photon-photon collisions, deeply virtual Compton scattering on a photon target, and leading-twist single-spin asymmetries for a photon polarized normal to a production plane. Exclusive hadron production processes in photon-photon collisions provide important tests of QCD at the amplitude level, particularly as measures of hadron distribution amplitudes which are also important for the analysis of exclusive semi-leptonic and two-body hadronic B-decays.
Photon 2001
| Author | : Maria-Novella Kienzle-Focacci |
| Publisher | : World Scientific |
| Total Pages | : 444 |
| Release | : 2002 |
| Genre | : Science |
| ISBN | : 9789812380531 |
This volume reports on all aspects of high energy photon interactions using both photon and proton targets. Significant new results from the LEP and HERA experiments as well as from CLEO II and BELLE are presented. These data are confronted with diverse theoretical models. In particular, predictions of QCD in both the perturbative and the non-perturbative sector are extensively discussed. The prospects for gamma-gamma physics at future high energy colliders are also reviewed. In total 72 papers are collected.The proceedings have been selected for coverage in: ? Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)
New Aspects of High-Energy Proton-Proton Collisions
| Author | : A. Ali |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 437 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 1461595401 |
Articles focus on the planned European proton-proton collider, and concentrate on physics issues, rather than the more technical concerns addressed in the three previous workshops. The use of energies much higher than those of the American Superconducting Super Collider is featured. Topics include reviews of current projects, hadron collisions, lep
Photon Collider Physics with Real Photon Beams
| Author | : S. Asztalos |
| Publisher | : |
| Total Pages | : 17 |
| Release | : 2005 |
| Genre | : |
| ISBN | : |
Photon-photon interactions have been an important probe into fundamental particle physics. Until recently, the only way to produce photon-photon collisions was parasitically in the collision of charged particles. Recent advances in short-pulse laser technology have made it possible to consider producing high intensity, tightly focused beams of real photons through Compton scattering. A linear e{sup +}e{sup -} collider could thus be transformed into a photon-photon collider with the addition of high power lasers. In this paper they show that it is possible to make a competitive photon-photon collider experiment using the currently mothballed Stanford Linear Collider. This would produce photon-photon collisions in the GeV energy range which would allow the discovery and study of exotic heavy mesons with spin states of zero and two.
High Pt Physics at Hadron Colliders
| Author | : Dan Green |
| Publisher | : Cambridge University Press |
| Total Pages | : 280 |
| Release | : 2005 |
| Genre | : Science |
| ISBN | : 9780521835091 |
Publisher Description
Photon-photon Colliders
| Author | : |
| Publisher | : |
| Total Pages | : 5 |
| Release | : 1995 |
| Genre | : |
| ISBN | : |
Since the seminal work by Ginsburg, et at., the subject of giving the Next Linear Collider photon-photon capability, as well as electron-positron capability, has drawn much attention. A 1990 article by V.I. Teinov describes the situation at that time. In March 1994, the first workshop on this subject was held. This report briefly reviews the physics that can be achieved through the photon-photon channel and then focuses on the means of achieving such a collider. Also reviewed is the spectrum of backscattered Compton photons -- the best way of obtaining photons. We emphasize the spectrum actually obtained in a collider with both polarized electrons and photons (peaked at high energy and very different from a Compton spectrum). Luminosity is estimated for the presently considered colliders, and interaction and conversion-point geometries are described. Also specified are laser requirements (such as wavelength, peak power, and average power) and the lasers that might be employed. These include conventional and free-electron lasers. Finally, we describe the R & D necessary to make either of these approaches viable and explore the use of the SLC as a test bed for a photon-photon collider of very high energy.
