Performance of the PEP-II B-Factory Collider at SLAC

J. Seeman, M. Browne, Y. Cai, W. Colocho, F.-J. Decker, M. Donald, S. Ecklund, R. Erickson, A. Fisher, J. Fox, S. Heifets, R. Iverson (+23 others)
Proceedings of the 2005 Particle Accelerator Conference  
PEP-II is an e + easymmetric B-Factory Collider located at SLAC operating at the Upsilon 4S resonance (3.1 GeV x 9 GeV). It has reached a luminosity of 9.21x10 33 /cm 2 /s and has delivered an integrated luminosity of 710 pb -1 in one day. PEP-II has delivered, over the past six years, an integrated luminosity to the BaBar detector of over 262 fb -1 . PEP-II operates in continuous injection mode for both beams boosting the integrated luminosity. The peak positron current has reached 2.45 A in
more » ... reached 2.45 A in 1588 bunches. Steady progress is being made in reaching higher luminosity. The goal over the next several years is to reach a luminosity of 2.1x10 34 /cm 2 /s. The accelerator physics issues being addressed in PEP-II to reach this goal include the electron cloud instability, beam-beam effects, parasitic beam-beam effects, high RF beam loading, shorter bunches, lower β y * interaction region operation, and coupling control. Figure 1 shows the PEP-II tunnel.
doi:10.1109/pac.2005.1591113 fatcat:r6gmhslhszhgpkcyhdu3cret6u