Algorithm for recognizing tracks detected by drift tubes in a magnetic field

An algorithm of track recognition in an uniform magnetic field is proposed for the drift straw tube detecting system of solenoidal geometry. The problem solution is given for (x,y) plane perpendicular to the magnetic field. Our algorithm is elaborated on the basis of (1) sequential histogramming method, which is, in fact, a modification of the Hough transform and (2) a modification of the deformable template method followed by a special procedure of the parameter correction. Being tested on simulated events our method shows satisfactory efficiency and accuracy in determination of particle momenta. 9 refs., 2 figs