B-factory

In this section, examples of specifications of P-EW s hydrophobic sihca aerogel products are introduced and motivation and performance of a sihca aerogel Cherenkov counter are also introduced. The astronomical data collected in B-factory experiment in which hydrophobic silica aerogel was instaUed as a Cherenkov counter in BELLE lead to Makoto Kobayashi and Toshihide Maskawa winning the Nobel prize in 2008. 

In such B-factories, the separation of pions from kaons is vital for the identification of B- or anti-B-meson and the selection of rare decays. It is important to measure the decay time from the appearance of B-mesons to the final state. 

I. Adachi. I have also referred to a large number of reports describing B-factory experiments which I cannot put on the references list. I am thankful to many researchers who have been concerned in the B-factory project. 

Sumiyoshi T, Adachi I, Enomoto R, lijima T, Suda R, Leaerogel Cherenkov counter fim the KEK B-factory experimmt. Nucl Instnnn Methods Hiys Res Sect A433 385 391. 

Factory A produces the wheels that are used for the frames made in Factory B. Factory C relies exclusively on the materials produced in Factories A and B. Assuming all the necessary parts minus the wheels and frames are housed in Factory C, how many bicycles can be completely assembled when Factories A and B provide 36 wheels and 15 frames, respectively Explain. 

Neubert, M. (1992). In Proceedings of the International Conference on B-Factories, Stanford, California. SLAC-PUB-5842. 

Figure 4-11. Silica aerogel application as a Cherenkov counter installed in the BELLE detector as part of the B-Factory project.

The heart of any asymmetric B Factory detector aimed at the study of CP violation is the vertex detector. Primary emphasis is on resolution along the flight path of the B mesons, that is, the beam (z) direction, and not on resolution in the transverse plane, as in current silicon vertex systems. 

Iv. Berkelman et al., Conceptual Design for a B Factory hosed on CESR, CLNS 91-1050 (1990). 

A. Diibroviii and A. Zholeiits, A Combined Symmetric and Asymmetric B Factory, IEEE Particle Accelerator Conference, San Francisco (1991). 

The Physics Program of a High-Luminosity Asymmetric B Factory at SLAC, D. Hitlin, ed., SLAC-353 (1989). 

An / symmetric B Factory Based on PEP, Conceptual Design Report LBL PUB-5303/SLAC-372/CALT-68-1715, revised June, 1993. 

A. Boyarski, P. Burchat, M. King, A. Weinstein, in Proceedings of the Workshop on Physics and Detector Issues for an Asymmetric B Factory at SLAC, SLAC-373, 1991. 

The Fast RICH was proposed some time ago in connection with the design of a detector for the high-luminosity symmetric B Factory at PSI [10]. The distinguishing feature of a Fast RICH is the use of fast photon detectors with j)ad readout to provide the position of the imaged Cerenkov photons. During the past f( w years, an active R[Pg.87]

Sec for example, Proceecling.s of the International Conference B Factories The State of the Art in Accelerators, Detectors and Physics, Stanford, CA (1992) SLAC-400, and Proceedings of the International Conference on B Factories, Tsiikuba, Japan (1992). 

Quality electromagnetic calorimetry is an essential ingredient in any B Factory detector. It is also the costliest ingredient and the one with potentially the longest lead time. Hence a careful assessment of the requirements and how they can be met must occur quite early in the planning of the detector. In this Chapter we describe in some detail the design and performance of a CsI(Tl) crystal calorimeter for the BaBar detector. 

Figure 5.1. Photon energj spectrum in (a) generic B decay and (b) in B 7r 7r events. The target energy resolution for the B Factory calorimeter is...

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