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A Direct Measurement of tan(beta): e+e- -> bb -> bbA at a Future e+e- Linear Collider

M. Berggren·R. Keranen·A. Sopczak
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Abstract

The experimental sensitivity of the reaction e+e- -> bb -> bbA has been studied with a full-statistics background simulation for sqrt(s) = 500 GeV and L = 500 fb-1. The simulation is based on a fast and realistic simulation of a TESLA detector. For the first time this reaction has been analysed for a future linear collider and we show that a signal could be observed. A significant signal over background is achieved by the application of an Iterative Discriminant Analysis (IDA). For a signal production cross section of only 2 fb, which is expected for a Higgs boson mass of 100 GeV and tan(beta) = 50, we achieve 100 signal over 100 background events, and obtain for a tan(beta) measurement: Delta(tan(beta)) / tan(beta) = 0.07. This measurement requires a high-luminosity future collider as proposed in the TESLA project.

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M. Berggren, R. Keranen, A. Sopczak. 1999-11-13. A Direct Measurement of tan(beta): e+e- -> bb -> bbA at a Future e+e- Linear Collider. https://arxiv.org/abs/hep-ph/9911344

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