Left-Right, Forward-Backward Asymmetries for B Quarks

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S Because no test beam data are available forthe SLD LAC,this is the best methodavailable forcalibrating the detector. e j. Yamartino,A Measurement of the e. D. Thuis, MIT (1994). 7 For a moredetailed description of this calorimeteranalysis along with extensive tests, see: S. D. Thesis, MIT(1994). 5 Imbalance Figure 3-5. A comparison of calorimetry quantities between data and Monte Carlo. 05. Also shown are the (d) sphericity, (e) aplanarity, and (f) imbalance. Correcting the Monte Carlo Tracking Efficiency It has long been recognized that problems with the designof the CDC make it difficult to reconstruct the tracks of charged particles.

Outside the LAC is the SLD's magnetic coil, and outside the coil is the warm iron calorimeter (WIC). 17 The WIC consists of 18 layers of Iarroci gas tubes sandwiched between one inch plates of steel (equivalent to 4 interaction lengths), larroci tubes are long, rectangular plastic extrusions lined with slightly conductive carbon paint, filled with gas and fitted 17 A. C. Benvenuti, et al, _he Limited Research A290 (1990): 353-369. 2. ,_b B at the SLD The specifications of the SLD'm liquid arEon calorimeter tower layers.

Can resolve (CRID) to identify the species of charged or WIC) As shown in Figures 2-4 and 2-5, these detector components are combined in roughly cylindrical layers, with the charged tracking near the IP, the CRID surrounding the tracking, followed by the LAC, the solenoid, and the WIC. 6 Tesla field, which causes charged tracks to bend in the tracking components and allows their momentum to be measured. 0 The LEP accelerator,in contrast,supports fourdetectorsat once. Io The SLD Collaboration,The SLD Des/gn Report (and revisions of), S[AC4)273 (1984).

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