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Design of a 1036CM-2S-1 Super-B Factory

Biagini M. E., Boni R., Boscolo M., Demma T., Drago A., Guiducci S., Raimondi P., Tomassini S., Zobov M., Bertsche K., Novokhatski A., Seeman J., Sullivan M., Wienands U., Wittmer W., Bettoni S., Paoloni E., Marchiori G., Bogomyagkov A., Koop I., Levichev E., Nikitin S., Piminov P., Shatilov D.

Parameters have been studied for a high luminosity e+e- collider operating at the Upsilon 4S that would deliver a luminosity of 1 to 4 × 10 36/cm2/s. This collider, called a Super-B Factory, would use a combination of linear collider and storage ring techniques. In this scheme an electron beam and a positron beam are stored in lowemittance damping rings similar to those designed for a Linear Collider (LC) or the next generation light source. A LC style interaction region is included in the ring to produce sub-millimeter vertical beta functions at the collision point. A large crossing angle (+/- 24 mrad) is used at the collision point to allow beam separation. A crab-waist scheme is used to reduce the hourglass effect and restore peak luminosity. Beam currents of 1.8 A at 4 × 7 GeV in 1251 bunches can produce a luminosity of 1036/cm2/s with upgrade possibilities. Such a collider would produce an integrated luminosity of about 10, 000 fb-1 (10 ab-1) in a running year (107 sec) at the Y(4S) resonance. Further possibilities include having longitudinally polarized e- at the IR and operating at the J/Psi and Psi' beam energies.