出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：SuperKEKB, which is an upgrade of the KEKB B-factory (KEKB), is a next-generation highluminosity electron-positron collider with asymmetric energies of 7 GeV (e-) and 4 GeV (e+). Its design luminosity is 8.0 × 1035 cm-2s-1, which is about 40 times than the KEKB’s record, and it is expected that the total integrated luminosity will reach 50 ab-1 just over ten years after inauguration. To achieve this challenging goal, bunches of both beams are squeezed extremely to the nanometer scale (0.3 mm across and 100 nm high), and the beam currents are doubled. To realize this, many upgrades must be performed, such as the replacement of magnets and beam pipes, construction of a damping ring for positrons and upgrade of the injector linac and RF systems. The dismantlement of KEKB and construction of SuperKEKB started on July 2010, and they are still underway. The commissioning will start in the second half of the Japanese fiscal year of 2014.
