학술논문
Status of the Super-B factory Design
Document Type
Working Paper
Author
Wittmer, W.; Bertsche, K.; Chao, A.; Novokhatski, A.; Nosochkov, Y.; Seeman, J.; Sullivan, M. K.; Wienands, U.; Weathersby, S.; Bogomyagkov, A. V.; Levichev, E.; Nikitin, S.; Piminov, P.; Shatilov, D.; Sinyatkin, S.; Vobly, P.; Okunev, I. N.; Bolzon, B.; Brunetti, L.; Jeremie, A.; Biagini, M. E.; Boni, R.; Boscolo, M.; Demma, T.; Drago, A.; Esposito, M.; Guiducci, S.; Liuzzo, S.; Preger, M.; Raimondi, P.; Tomassini, S.; Zobov, M.; Paoloni, E.; Fabbricatore, P.; Musenich, R.; Farinon, S.; Bettoni, S.; Poirier, F.; Rimbault, C.; Variola, A.; Baylac, M.; Bourrion, O.; Monseu, N.; Vescovi, C.; Chance, A.
Source
Subject
Language
Abstract
The SuperB international team continues to optimize the design of an electron-positron collider, which will allow the enhanced study of the origins of flavor physics. The project combines the best features of a linear collider (high single-collision luminosity) and a storage-ring collider (high repetition rate), bringing together all accelerator physics aspects to make a very high luminosity of 10$^{36}$ cm$^{-2}$ sec$^{-1}$. This asymmetric-energy collider with a polarized electron beam will produce hundreds of millions of B-mesons at the $\Upsilon$(4S) resonance. The present design is based on extremely low emittance beams colliding at a large Piwinski angle to allow very low $\beta_y^\star$ without the need for ultra short bunches. Use of crab-waist sextupoles will enhance the luminosity, suppressing dangerous resonances and allowing for a higher beam-beam parameter. The project has flexible beam parameters, improved dynamic aperture, and spin-rotators in the Low Energy Ring for longitudinal polarization of the electron beam at the Interaction Point. Optimized for best colliding-beam performance, the facility may also provide high-brightness photon beams for synchrotron radiation applications.