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ISSN - 01689002, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1996, vol. 379, p. 432-433

Calibration of CMD-2 drift chamber

Anashkin E. V., Chernyak D. V., Fedotovich G. V., Khazin B. I., Lukin P. A., Maksimov A. V., Ruban A. A., Snopkov I. G., Solodov E. P., Zavarzin V. G.

The experience gained during four years of operation of the CMD-2 drift chamber is reported. Offline calibration of the DC parameters using a sample of Bhabha scattering events is described. Fine corrections to the Lorentz angle allow one to improve the momentum resolution. The systematic error in the determination of the polar angle was substantially decreased when information from the Z-chamber cathode was used for calibration.