CALCOM ANALYSIS TASKS DECEMBER 97 ================================== (1) Highest priority should have the analysis of data that may affect data quality for e1 in February/March and g1 in April. This includes: A. Stavinski a. Cherenkov counter efficiency analysis using elastic A. Vlassov ([procedure developed, needs high statistics) K. Joo b. same for exclusive inelastic reaction which probe different electron kinematics c. Determine acceptance/efficiency tables from the data (theta, phi, p/B) K. Joo b. Study efficiency of level 1 triggers EC, EC.CC C. Smith - W, theta, phi dependence of inclusice electron R. Thompson scattering data for different threshold settings - (non)uniformity of EC response to matched electrons - threshold behavior for identified electrons track-matched in DC/EC/CC for later -> (- are the event types correctly assigned, when EC, EC.CC is run in parallel, without prescale factors) (- study spatial distribution of elastic events across Cherenkov detector area for EC.(notCC)) M. Battaglieri c. Study of the luminosity dependence of the FC normalized, J. Manak live time corrected elastic ep rate (not nessarily cross section!) (are we measuring the live time correctly?) Use 1.6GeV runs with 1 - 4 nA currents. L. Qin d. Drift chamber efficiency analysis for HV scan. R. Feuerbach (completed) R. Thompson e. Electron selectivity of triggers (1.6GeV - done). J. Manak f. Extraction of elastic cross sections ep -> e(p) A. Coleman radiatively crrected, acceptance corerctions, H. Funsten extend to time-based tracking S. Stepanyan g. ep-> eX (dsigma/d(omega)dE' versus M. Battaglieri theta and phi in HBT and TBT. Issues related to improving the global event reconstruction. J. Mueller a. continue to improve tracking efficiency, and tracking L. Qin resolution, study tracking efficiency versus luminosity for 1.6GeV and 4GeV runs. C. Loukachine b. TOF gain matching, software corrections, dE/dx id E. Smith S. Taylor c. TOF adjacent paddle-to-paddle timing calibration L. Elouadrhiri d. particle id with identified e-h matched tracks, rf signal S. Stepanyan H. Egiyan M. Kim K. Mikhailov e. understanding the drift chamber alignment, using straight B. Asavapibhop tracks from Sep/Oct run. A. Skabelin Reconstruct empty target cell wall with and w/o B field R. Minehart f. relative DC alignment in opposite sectors using ep->ep, K. Joo unfolding non-uniformities in the CLAS geometry C. Smith (elastic peak position versus theta, phi) C. Smith g. absolute energy calibration of EC and LAEC G. Gavalian using min. ionizing paticles and pi0 mass reconstruction M. Battaglieri W. Brooks h. time calibration of EC A. Vlassov i. CC calibration in #photo-electrons A. Stavinski