A Method for Finding the Least Squares Estimate
of the Intersection Point of Two Helices in Space

When the helical trajectories of two charged
particles moving away from a common point in a 
magnetic field are reconstructed from measurements on
the tracks, the reconstructed tracks are perturbed 
by measurement and other errors and do not, in general,
intersect.  A method is given for adjusting the 
reconstructed tracks in a least squares manner so that they do intersect.

CACM April, 1966

Royston, R. J.
Gregory, J.

CA660406 JB March 3, 1978  10:42 AM

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