Beam - Beam Interaction : Luminosity , Tails
نویسنده
چکیده
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 function, the increase of the horizontal beam size, and “mini-” and “micre” beta projects, is straight-forward. Predictions for future storage rings can also be made. Finally, some observations of the consequences of re ducing the vertical betatron function to near the value of the bunch length are discussed.
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