SuperB：线性高光度B工厂
SuperB: a linear high-luminosity B Factory
摘要：
本文是根据最近于2005年11月11日至12日在弗拉斯卡蒂举行的“意大利SuperB”研讨会上的活动成果编写的。研讨会以Marco Ciuchini的理论介绍开始，分为两个工作组。一个集中在机器上，另一个集中在探测器和实验问题上。CP的现状主要基于BaBar和Belle所取得的成果。由于PEP-Ⅱ和KEKB e+e-不对称B工厂在对应于Y（4 s）质量的质心能量上的成功运行，2001年在B扇区建立了间接CP破坏，2004年建立了直接CP破坏。有了两个B工厂的数据，幺正三角形现在开始受到过度约束，因为它改进了边的测量，现在也改进了角α和γ的测量。我们还在企鹅环衰变道的含时分析中得到了非常有趣的sin（2 β）测量结果，其中b --> sbar s和b --> sdbar d。Tau物理，特别是LFV搜索，以及魅力和ISR物理是SuperB工厂科学计划的重要组成部分。讨论了基于直线对撞机概念的高亮度SuperB工厂的物理情况和可能的方案以及相关的实验问题。
英文摘要：
This paper is based on the outcome of the activity that has taken place during the recent workshop on "SuperB in Italy" held in Frascati on November 11-12, 2005. The workshop was opened by a theoretical introduction of Marco Ciuchini and was structured in two working groups. One focused on the machine and the other on the detector and experimental issues. The present status on CP is mainly based on the results achieved by BaBar and Belle. Estabilishment of the indirect CP violation in B sector in 2001 and of the direct CP violation in 2004 thanks to the success of PEP-II and KEKB e+e- asymmetric B Factories operating at the center of mass energy corresponding to the mass of the Y(4s). With the two B Factories taking data, the Unitarity Triangle is now beginning to be overconstrained by improving the measurements of the sides and now also of the angles alpha, and gamma. We are also in presence of the very intriguing results about the measurements of sin(2 beta) in the time dependent analysis of decay channels via penguin loops, where b --> s sbar s and b --> s dbar d. Tau physics, in particular LFV search, as well as charm and ISR physics are important parts of the scientific program of a SuperB Factory. The physics case together with possible scenarios for the high luminosity SuperB Factory based on the concepts of the Linear Collider and the related experimental issues are discussed.
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