Author: Publisher: ISBN: Category : Languages : en Pages : 35
Book Description
A survey is presented of the physics opportunities at TeV ee− linear colliders. Examples are given of physics that might emerge in e+e− collisions and in?? collisions using the back-scattered laser technique, including?? 2!ZZ scattering as a probe of ultraheavy quanta. The second portion of the talk focuses on physics that must emerge at or below the TeV scale--the mechanism of electroweak symmetry breaking. In particular a very rough estimate is presented of the most challenging possible signal of symmetry breaking, strong WW scattering, as a function of collider energy. A subtheme, made explicit in the concluding section, is the continuing complementarity of e+e− and pp colliders in the domain of TeV physics.
Author: Publisher: ISBN: Category : Languages : en Pages : 22
Book Description
The purpose of this paper is to review progress in the US towards a next generation linear collider. During 1988, there were three workshops held on linear colliders: Physics of Linear Colliders, '' in Capri, Italy, June 14--18, 1988; Snowmass 88 (Linear Collider subsection) June 27--July 15, 1988; and SLAC International Workshop on Next Generation Linear Colliders, November 28--December 9, 1988. In this paper, I focus on reviewing the issues and progress on a next generation linear collider. The energy range is dictated by physics with a mass reach well beyond LEP, although somewhat short of SSC. The luminosity is that required to obtain 103--104 units of R0 per year. The length is consistent with a site on Stanford land with collision occurring on the SLAC site; the power was determined by economic considerations. Finally, the technology as limited by the desire to have a next generation linear collider by the next century. 37 refs., 3 figs., 6 tabs.
Author: Publisher: ISBN: Category : Languages : en Pages : 25
Book Description
We discuss future e[sup +]e[sup [minus]] linear colliders and new particle searches that can be done with them. In the discussion of new particle searches we examine the following topics: searches for gauge boson structure, searches for a strongly interacting Higgs sector, top quark studies, Higgs searches, supersymmetric particle searches and measurements of soft supersymmetry breaking parameters.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A review is presented of the possibilities for making precise tests of Quantum Chromodynamics at high energy e[sup+]e[sup[minus]] colliders operating at center-of-mass energies in the range 0.5[le] Q[le] 2 TeV. Throughout, the acronym HLC, representing High energy Linear e[sup+]e[sup[minus]] Collider, will be used to denote the set of colliders comprising NLC, JLC, CLIC, TESLA and VLEPP that have been proposed by the respective geo-political consortia to confront the supra-national physics. It is assumed that the collider will be designed to deliver an integrated luminosity of 50 fb[sup[minus]1] per year of running at 500 GeV, and 100 fb[sup[minus]1] per year of running at 1 TeV.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The study of electron-positron (ee/sup -/) annihilation in storage ring colliders has been very fruitful. It is by now well understood that the optimized cost and size of ee/sup /minus// storage rings scales as E(sub cm/2 due to the need to replace energy lost to synchrotron radiation in the ring bending magnets. Linear colliders, using the beams from linear accelerators, evade this scaling law. The study of e/sup +/e/sup /minus// collisions at TeV energy will require linear colliders. The luminosity requirements for a TeV linear collider are set by the physics. Advanced accelerator research and development at SLAC is focused toward a TeV Linear Collider (TLC) of 0.5--1 TeV in the center of mass, with a luminosity of 1033−−1°sup 34/. The goal is a design for two linacs of less than 3 km each, and requiring less than 100 MW of power each. With a 1 km final focus, the TLC could be fit on Stanford University land (although not entirely within the present SLAC site). The emphasis is on technologies feasible for a proposal to be framed in 1992. Linear collider development work is progressing on three fronts: delivering electrical energy to a beam, delivering a focused high quality beam, and system optimization. Sources of high peak microwave radio frequency (RF) power to drive the high gradient linacs are being developed in collaboration with Lawrence Berkeley Laboratory (LBL) and Lawrence Livermore National Laboratory (LLNL). Beam generation, beam dynamics and final focus work has been done at SLAC and in collaboration with KEK. Both the accelerator physics and the utilization of TeV linear colliders were topics at the 1988 Snowmass Summer Study. 14 refs., 4 figs., 1 tab.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors point out that the ratio of W[sup+]W[sup[minus]][yields] W[sup+]W[sup[minus]] and W[sup+]W[sup[minus]][yields] ZZ cross sections is a sensitive probe of the dynamics of electroweak symmetry breaking, in the CM energy region[radical]s[sub ww][approx-gt] 1 TeV where vector boson scattering may well become strong. They suggest ways in which this ratio can be extracted at a 1.5 TeV e[sup+]e[sup[minus]] linear collider, using W[sup[+-]], Z[yields] jj hadronic decays and relying on dijet mass resolution to provide statistical discrimination between W[sup[+-]] and Z. WW fusion processes studied here are unique for exploring scalar resonances of mass about 1 TeV and are complementary to studies via the direct channel e[sup+]e[sup[minus]][yields] W[sup+]W[sup[minus]] for the vector and non-resonant cases. With an integrated luminosity of 200 fb[sup[minus]1], the signals obtained are statistically significant. Comparison with a study of e[sup[minus]]e[sup[minus]][yields][nu][nu]W[sup[minus]]W[sup[minus]] process is made. Enhancements of the signal rate from using a polarized electron beam, or at a 2 TeV e[sup+]e[sup[minus]] linear collider and possible higher energy[mu][sup+][mu][sup[minus]] colliders, are also presented.
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Author: ![E[sup [plus]e[sup [minus] Linear Colliders and New Particle Searches PDF](https://books.google.com/books/content/images/frontcover/RdGoAQAACAAJ?fife=w80-h100)
Author: ![Testing QCD at High Energy E[sup+]e[sup[minus] Colliders: 0.5[le] Q[le] 2 TeV. PDF](https://books.google.com/books/content/images/frontcover/ps7GjwEACAAJ?fife=w80-h100)
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Author: ![Probing Strongly-interacting Electroweak Dynamics Through W[sup+]W[sup[minus]/ZZ Ratios at Future E[sup+]e[sup[minus] Colliders PDF](https://books.google.com/books/content/images/frontcover/Gw7FjwEACAAJ?fife=w80-h100)
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Author: R.D. RUTH