Volume224, number4 PHYSICSLETTERS B 6 July 1989 FIRST OBSERVATION OF INCLUSIVE ~ PRODUCTION IN ~r DECAYS CLEO Collaboration R. FULTON, P. HAAS, M. HEMPSTEAD, T. JENSEN, D.R. JOHNSON, H. KAGAN, R. KASS, F. MORROW, J. WHITMORE Ohio State University, Columbus, OH 43210, USA P. BARINGER, W.-Y. CHEN, R.L. McILWAIN, D.H. MILLER, C.R. NG, E.I. SHIBATA, W.-M. YAO Purdue University, West Lafayette, IN 47907, USA M.S. ALAM, D. CHEN, N. KATAYAMA, I.J. KIM, W.C. LI, X.C. LOU, C.R. SUN, V. TANIKELLA State university of New York at Albany, Albany, NY 12222, USA D. BORTOLETTO, M. GOLDBERG, N. HORWITZ, P. LUBRANO, M.D. MESTAYER, G.C. MONETI, V. SHARMA, I.P.J. SHIPSEY, T. SKWARNICKI Syracuse University, Syracuse, NY 13210, USA S.E. CSORNA, T. LETSON Vanderbilt University, Nashville, TN 37235, USA I.C. BROCK, T. FERGUSON Carnegie Mellon University, Pittsburgh, PA 15213, USA M. ARTUSO, C. BEBEK, K. BERKELMAN, E. BLUCHER, J. BYRD, D.G. CASSEL, E. CHEU, D.M. COFFMAN, G. CRAWFORD, R. DeSALVO, J.W. DeWIRE, P.S. DRELL, R. EHRLICH, R.S. GALIK, B. GITTELMAN, S.W. GRAY, A.M. HALLING, D.L. HARTILL, B.K. HELTSLEY, J. KANDASWAMY, R. KOWALEWSKI, D.L. KREINICK, Y. KUBOTA, J.D. LEWIS, N.B. MISTRY, J. MUELLER, R. NAMJOSHI, S. NANDI, E. NORDBERG, C. O'GRADY, D. PERTICONE, D. PETERSON, M. PISHARODY, D. RILEY, M. SAPPER, A. SILVERMAN, S. STONE, H. WORDEN, M. WORRIS Cornell University, Ithaca, NY 14853, USA A.J. SADOFF Ithaca College, Ithaca, NY 14850, USA P. AVERY, D. BESSON, L. GARREN, J. YELTON University o f Florida, Gainesville, FL 32611, USA T. BOWCOCK, K. KINOSHITA, F.M. PIPKIN, M. PROCARIO, Richard WILSON, J. WOLINSKI, D. XIAO Harvard University, Cambridge, MA 02138, USA 0370-2693/89/$ 03.50 © Elsevier Science Publishers B.V. (North-Holland Physics Publishing Division ) 445