Volume 110B, number 2 PHYSICSLETTERS 25 March 1982 CHARGE ASYMMETRY AND WEAK INTERACTION EFFECTS IN e+e - -~ ~+lt- AND e+e - -~ ¢+ ¢- TASSO Collaboration R. BRANDELIK, W. BRAUNSCHWEIG, K. GATHER, F.J. KIRSCHFINK, K. LLIBELSMEYER, H.-U. MARTYN, G. PEISE, J. RIMKUS, H.G. SANDER, D. SCHMITZ, D. TRINES, W. WALLRAFF 1. Physikalisches Institut der R WTH Aachen, Germany 1 H. BOERNER, H.M. FISCHER, H. HARTMANN, E. HILGER, W. HILLEN, G. KNOP, L. KOPKE, H. KOLANOSKI, B. LOHR, R. WEDEMEYER, N. WERMES, M. WOLLSTADT Physikalisches lnstitut der Universitiit Bonn, Germany 1 H. BURKHARDT, S. COOPER, D. HEYLAND, H. HULTSCHIG, P. JOOS, W. KOCH, U. KOTZ 2, H. KOWALSKI 2, A. LADAGE, D. LLIKE, H.L. LYNCH 3, p. MATTIG, K.H. MESS, D. NOTZ, J. PYRLIK, D.R. QUARRIE 4, R. RIETHMULLER, A. SHAPIRA 5, p. SODING, G. WOLF Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany R. FOHRMANN, M. HOLDER, H.L. KRASEMANN, P. LEU, D. PANDOULAS, G. POELZ, O. ROMER, P. SCHMUSER, B.H. WlIK 11. Institut ffir Experimentalphysik der Universitiit Hamburg, Germany 1 I. AL-AGIL, R. BEUSELINCK, D.M. BINNIE, A.J. CAMPBELL, P.J. DORNAN, D.A. GARBUTT, T.D. JONES, W.G. JONES, S.L. LLOYD, J.K. SEDGBEER, R.A. STERN, S. YARKER 6 Department of Physics, Imperial College London, England 7 K.W. BELL, M.G. BOWLER, I.C. BROCK, R.J. CASHMORE, R. CARNEGIE, R. DEVENISH, P. GROSSMANN, J. ILLINGWORTH, M. OGG 8, G.L. SALMON, J. THOMAS, T.R. WYATT, C. YOUNGMAN Department of Nuclear Physics, Oxford University, England 7 B. FOSTER, J.C. HART, J. HARVEY, J. PROUDFOOT, D.H. SAXON, P.L. WOODWORTH Rutherford Appleton Laboratory, Chilton, England 7 E. DUCHOVNI, Y. EISENBERG, U. KARSHON, G. MIKENBERG, D. REVEL, E. RONAT Weizmann Institute, Rehovot, lsrael 9 and T. BARKLOW, J. FREEMAN 10, T. MEYER 11, G. RUDOLPH, E. WICKLUND, SAU LAN WU and G. ZOBERNIG Department of Physics, University of Wisconsin, Madison, Wisconsin, USA 12 Received 26 January 1982 0 031-9163/82/0000--0000/$02.75 © 1982 North-Holland For footnotessee next page. 173