Status and future plans of the PEP-II B-factory
- Resource Type
- Conference
- Authors
- Cai, Y.; Clendenin, J.; Decker, F.J.; Donald, M.; Ecklund, S.; Erickson, R.; Fisher, A.; Heifets, S.; Holtzapple, R.; Iverson, R.; Krejcik, P.; Kulikov, A.; Nelson, J.; Novokhatski, A.; Reichel, I.; Seeman, J.T.; Stanek, M.; Sullivan, M.; Turner, J.; Wienands, U.; Steier, C.; Zisman, M.; Biagini, M.; Kozanecki, W.
- Source
- PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268) Particle accelerator conference Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001. 5:3561-3563 vol.5 2001
- Subject
- Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Nuclear Engineering
Robotics and Control Systems
Radio frequency
Detectors
Positrons
Linear particle accelerator
Voltage
Synchrotrons
Resonance
Electron beams
Clouds
Linear accelerators
- Language
The PEP-II e/sup +/e/sup -/ collider has been operating for two years with the BaBar detector at the energy of the Upsilon 4S resonance. The peak luminosity has reached 3.3 /spl times/ 10/sup 33//cm/sup 2//s with 693 bunches with a positron current of 1.5 A and an electron current of 0.8 A. PEP-II has delivered in excess of 38 fb/sup -1/ of data to BaBar. The beam-beam tune shift limits are approaching 0.05-0.07 horizontally and 0.03-0.05 vertically. The electron cloud instability enlarges the positron beam size at high currents but is reduced by a solenoidal field on the vacuum chambers. The beam currents in PEP-II are being raised to increase the number of bunches and the luminosity. Over the next few years the luminosity goal for PEP-II is 10/sup 34//cm/sup 2//s.