Abstract
The SuperKEKB project requires a positron and electron collider with a peak luminosity of 8 × 1035 cm−2 s−1. This luminosity is 40 times that of the KEKB B-factory, which operated for 11 years up to 2010. SuperKEKB is an asymmetry-energy and double-ring collider; the beam energy of the positron (LER) is 4GeV and that of the electron (HER) is 7GeV. An extremely small beta function at the interaction point (IP) and a low emittance are necessary. In addition, in order to achieve the target luminosity, a large horizontal crossing angle between two colliding beams is adopted, as is a bunch length much longer than the beta function at the IP. This method is called the “nano-beam scheme”. The beam–beam parameter is assumed to be similar to KEKB, the beta function at the IP is 1/20, and the beam currents are twice those of KEKB in the nano-beam
References (22)
- KEKB B-Factory Design Report, KEK Report No. 95-7 (1995).
- S. Kurokawa et al., KEK Report No. 2001-157, 2001.
- "SuperB Conceptual Design Report", INFN/AE-07/2, SLAC-R-856, LAL 07-15 (March 2007).
- Y. Suetsugu et al., Nucl. Instrum. Meth. A 578, 470 (2007).
- M. G. Minty et al., SLAC-PUB-7954 (September 1998).
- D. Brandt et al., CERN SL-99-031 AP (March 1999).
- M. Tawada et al., Conf. Proc. C110904 (2011) 2457 IPAC-2011-WEPO027.
- Strategic accelerator design. (Available at: http://acc-physics.kek.jp/SAD.)
- A. Morita et al., Conf. Proc. C110904 (2011) 3691 IPAC-2011-THPZ006.
- ANSYS is trademark by CYBERNET Inc. http://www.ansys.com.
- H. Yamaoka et al., Conf. Proc. C1205201 (2012) 3548 IPAC-2012-THPPD023.
- H. Koiso et al., Conf. Proc. C070625 (2007) 3321 PAC07-THPAN042.
- D. Sagan et al., Phys. Rev. ST Accel. Beams 3, 092801 (2000).
- Y. Cai, Phys. Rev. E 68, 036501 (2003).
- Y. Ohnishi et al., Phys. Rev. ST Accel. Beams 12, 091002 (2009).
- H. Sugimoto et al., Conf. Proc. C1205201 (2012) 1203 IPAC-2012-TUPPC020.
- S. Mayers, LEP NOTE 334 (November 1981).
- P. Collier, CERN-SL-95-50OP (June 1995).
- H. Nakayama et al., Conf. Proc. C1205201 (2012) 1825 IPAC-2012-TUPPR007.
- S. Agostinelli et al., Nucl. Instrum. Methods Phys. Res., Sect. 506, 250 (2003).
- H. Wiedemann, Particle Accelerator Physics (Springer, Berlin, 1993).
- R. Kleiss and H. Burkhardt, hep-ph/9401333.