BEAM-BEAM EFFECTS and GENERALIZED LUMINOSITY
نویسندگان
چکیده
منابع مشابه
BEAM-BEAM EFFECTS and GENERALIZED LUMINOSITY
The assumption is made that before an NLC is approved, a prototype will be necessary that demonstrates the feasibility of a general purpose linear collider capable of Z+Zi, ~z ● and ~~ incident channels. At an upgraded SLC, such channels could provide new physics over a range of energies upwards of a few GeV. Effects that limit the luminosity of a GLC are discussed together with their possible ...
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Observations of the beam-beam interaction at SPEAR, CESR, PETRA and PEP are discussed. They are sufficiently similar that a simple prescription can be formulated to describe the behavior of the luminosity as a function of current including the peak values. With this prescription the interpretation of various methods of increasing the luminosity, such as the reduction of the vertical betatron fu...
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Many measurements on the beam-beam limit in SPEAR have been performed over the past eight years since colliding beam operation began. The goal for these measurements was to find the proper parameterization of the beambeam effect. Earlier measurements I,21 in SPEAR, however, were limited in their validity by two circumstances. First, until 1978 we had no control over the so-called flip-flop phen...
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A new method of monitoring the luminosity has been developed at CESR. The method involves shaking one bunch at a speciic frequency and observing the resulting oscillations of the corresponding opposing bunch. In initial tests, measurements with 1 accuracy have been obtained in 1 second. Measurements of diierent bunches in a train shows bunch to bunch diierences with the optimum luminosity condi...
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In order to achieve high luminosity, the Compact Linear Collider (CLIC) has to be operated in the highbeamstrahlung regime at centre-of-mass energies in the few TeV range. Beam-beam effects for this case are simulated. The dependence of luminosity, luminosity spectrum and background conditions on the different beam parameters is investigated. In particular the effect of beam size, waist shift a...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 1996
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x96000870