NUKLEONIKA 2004, 49(Supplement 2):s85-s88
Konstantin R. Mikhailov1, Aleksey V. Stavinskiy1, Alexander V. Vlassov1, Mac D. Mestayer2
1 Alikhanov Institute for Theoretical and Experimentalis Physics (ITEP),
25 B. Cheremushkinskaya Str., 117218 Moscow, Russia,
2 Thomas Jefferson National Accelerator Facility (TJNAF), 12000 Jefferson Ave., VA 23606, USA
We describe two new methods for the study of close track efficiency. One is based on the study of a
correlation function for particles with different masses as a function of their relative momenta in the
laboratory reference system. The other method is based on the analysis of artificial events, constructed
by merging raw data from separate events. Both methods and the standard Monte Carlo method were applied
to data from the CLAS detector at Jefferson Laboratory. All three methods provide the same result for
close track efficiency with an accuracy sufficient for practical application.