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Vertex Fitting

In this section, we discuss the way to find the common vertex of a given set of helical tracks. We first consider a simple geometrical approach which can be used even if the error matrices are unknown or unreliable. When the error matrices are known, statistically more appropriate treatments are possible. We extend our simple method without error matrices to the case with error matrices and then consider the way to include geometrical constraints.


Keisuke Fujii