Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apr.u5005s&link_type=abstract
American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As
Astronomy and Astrophysics
Astrophysics
Scientific paper
The two asymmetric-energy e^+e^- B-Factories, PEP-II at SLAC and KEKB at KEK, have successfully turned on and in less than 2 years of operation, with the detectors online, have achieved luminosities in excess of 4 x 10^33 cm-2sec-1. Both accelerators have had to deal with issues related to high-current stored beams. Some of these issues are: high power synchrotron radiation near the collision point, higher-order-mode (HOM) power, damage to collimators from the high intensity beams, electron cloud effects, transverse and longitudinal multi-bunch stability, and background levels in the detector. Status reports on each accelerator will be presented. In addition, investigations have been started that are looking for ways of increasing the luminosity of these accelerators to 1 x 10^35cm-2sec-1 and discussion has begun to look at pushing the luminosity even further, as high as 1 x 10^36cm-2sec-1. I will present information on the KEK investigation to increase the luminosity of KEKB to 1 x 10^35cm-2sec-1 and also show some of the issues that need to be addressed for asymmetric-energy e^+e^- B-Factory accelerators with a design luminosity of 1 x 10^36cm-2sec-1.
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