Author: Publisher:
ISBN:
Category : Folk poetry, Tamil
Languages : en
Pages : 7
Book Description
Maturaikāḷiyamman̲ cintu
Author: Physics with Ee− Linear Colliders
Author: E. AccomandoPublisher:
ISBN:
Category : Linear colliders
Languages : en
Pages : 78
Book Description
Prospects for Physics at Ee− Linear Colliders
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The present thinking on high-energy e/sup /plus//e/sup /minus// linear colliders is reviewed, stressing those points that have consequences for detector design and physics analyses. Detector requirements are discussed. Experimental aspects of the physics that can be done at these colliders are discussed: first the general physics environment, then a standard process, W/sup /plus// W/sup /minus// detection, and finally four examples of the discovery potential of these colliders -- heavy quarks, heavy leptons, standard Higgs bosons, and charged Higgs bosons. The conclusions of this study will be stated. 23 refs., 40 figs.
Physics with Ee− Linear Colliders
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 103
Book Description
We describe the physics potential of ee− linear colliders in this report. These machines are planned to operate in the first phase at a center-of-mass energy of 500 GeV, before being scaled up to about 1 TeV. In the second phase of the operation, a final energy of about 2 TeV is expected. The machines will allow us to perform precision tests of the heavy particles in the Standard Model, the top quark and the electroweak bosons. They are ideal facilities for exploring the properties of Higgs particles, in particular in the intermediate mass range. New vector bosons and novel matter particles in extended gauge theories can be searched for and studied thoroughly. The machines provide unique opportunities for the discovery of particles in supersymmetric extensions of the Standard Model, the spectrum of Higgs particles, the supersymmetric partners of the electroweak gauge and Higgs bosons, and of the matter particles. High precision analyses of their properties and interactions will allow for extrapolations to energy scales close to the Planck scale where gravity becomes significant. In alternative scenarios, like compositeness models, novel matter particles and interactions can be discovered and investigated in the energy range above the existing colliders up to the TeV scale. Whatever scenario is realized in Nature, the discovery potential of ee− linear colliders and the high-precision with which the properties of particles and their interactions can be analyzed, define an exciting physics programme complementary to hadron machines.
Future Ee− Linear Colliders and Beam-beam Effects
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Numerous concepts, ranging from conventional to highly exotic, hae been proposed for the acceleration of electrons and positrons to very high energies. For any such concept to be viable, it must be possible to produce from it a set of consistent parameters for one of these ''benchmark'' machines. Attention is directed to the choice of parameters for a collider in the 300 GeV energy range, operating at a gradient on the order of 200 MV/m, using X-band power sources to drive a conventional disk-loaded accelerating structure. These rf power sources, while not completely conventional represent a reasonable extrapolation from present technology. The choice of linac parameters is strongly coupled to various beam-beam effects which take place when the electron and positron bunches collide. We summarize these beam-beam effects, and then return to the rf design of a 650 GeV center-of-mass collider. 14 refs.
Luminosity and Disruption in E-e- Linear Colliders
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
We present an empirical analytic approximation for the luminosity ''de-enhancement'' factor H{sub D} in e−e− collisions, as a function of the disruption parameters D(subscript x), D{sub y}, the hour-glass parameters A(subscript x), A{sub y}, and the beam aspect ratio R identical to sigma(subscript x)/sigma{sub y}. We treat Gaussian beams with essentially arbitrary aspect ratio, assuming only that the vertical beam size is less than or equal to the horizontal beam size and that the vertical beta function is less than or equal to the horizontal beta function.
The Case for a 500 GeV Ee Linear Collider
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Several proposals are being developed around the world for an ee linear collider with an initial center of mass energy of 500 GeV. In this paper, the authors discuss why a project of this type deserves priority as the next major initiative in high energy physics.
A Super Ee− Linear Collider in Europe
Author: J. Le DuffPhysics And Experiments With Linear Colliders (In 2 Vols)
Author: P EerolaPublisher: World Scientific
ISBN: 9814554596
Category :
Languages : en
Pages : 876
Book Description
This workshop brought together for the first time accelerator experts as well as experimental and theoretical high energy physicists from all over the world to consider the physics potential of high energy linear electron-positron colliders. A wide variety of physics cases were presented ranging from precision tests of the top quark and electroweak gauge bosons to searches of the intermediate mass Higgs bosons and supersymmetric particles.
Luminosity for E-e- Linear Collider Designs at 1.7 TeV.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
The total luminosity for e−e− mode compared to that for ee− mode is severely reduced in a very high energy linear collider, because the mutual disruption of the beams blows up the beams instead of pinching them down. However, since an e−e− machine has less beamstrahlung than an e−e− machine with the same parameters, the luminosity near the peak energy is not degraded as much as the total luminosity. We quantify these effects for two representative designs at 1.7 TeV center of mass.