% 07/06/94 503061057 MEMBER NAME AUTH013N (ZEUS) M TEX % \documentstyle[12pt,dina4p]{report} \def\3{\ss} \textwidth 15.5cm \parindent 0cm \begin{document} \footnotesize %\begin{minipage}{15.5cm} \begin{center} \begin{large} The ZEUS Collaboration \end{large} \end{center} M.~Derrick, D.~Krakauer, S.~Magill, B.~Musgrave, J.~Repond, J.~Schlereth, R.~Stanek, R.L.~Talaga, J.~Thron \\ {\it Argonne National Laboratory, Argonne, IL, USA}~$^{p}$\\[6pt] F.~Arzarello, R.~Ayad$^1$, G.~Bari, M.~Basile, L.~Bellagamba, D.~Boscherini, A.~Bruni, G.~Bruni, P.~Bruni, G.~Cara Romeo, G.~Castellini$^{2}$, M.~Chiarini, L.~Cifarelli$^{3}$, F.~Cindolo, F.~Ciralli, A.~Contin, \\ S.~D'Auria, C.~Del~Papa, F.~Frasconi, P.~Giusti, G.~Iacobucci, G.~Laurenti, G.~Levi, G.~Maccarrone, A.~Margotti, T.~Massam, R.~Nania, C.~Nemoz, F.~Palmonari, A.~Polini, G.~Sartorelli, R.~Timellini, Y.~Zamora Garcia$^{1}$, A.~Zichichi \\ {\it University and INFN Bologna, Bologna, Italy}~$^{f}$ \\[6pt] A.~Bargende, J.~Crittenden, K.~Desch, B.~Diekmann, T.~Doeker, L.~Feld, A.~Frey, M.~Geerts, G.~Geitz, M.~Grothe, H.~Hartmann, D.~Haun, K.~Heinloth, E.~Hilger, H.-P.~Jakob, U.F.~Katz, S.M.~Mari, A.~Mass, S.~Mengel, J.~Mollen, E.~Paul, Ch.~Rembser, R.~Schattevoy$^{4}$, J.-L.~Schneider$^{4}$, D.~Schramm, J.~Stamm, R.~Wedemeyer \\ {\it Physikalisches Institut der Universit\"at Bonn, Bonn, Federal Republic of Germany}~$^{c}$\\[6pt] S.~Campbell-Robson, A.~Cassidy, N.~Dyce, B.~Foster, S.~George, R.~Gilmore, G.P.~Heath, H.F.~Heath, T.J.~Llewellyn, C.J.S.~Morgado, D.J.P.~Norman, J.A.~O'Mara, R.J.~Tapper, S.S.~Wilson, R.~Yoshida \\ {\it H.H.~Wills Physics Laboratory, University of Bristol, Bristol, U.K.}~$^{o}$\\[6pt] R.R.~Rau \\ {\it Brookhaven National Laboratory, Upton, L.I., USA}~$^{p}$\\[6pt] M.~Arneodo, L.~Iannotti, M.~Schioppa, G.~Susinno\\ {\it Calabria University, Physics Dept.and INFN, Cosenza, Italy}~$^{f}$ \\[6pt] A.~Bernstein, A.~Caldwell, I.~Gialas, J.A.~Parsons, S.~Ritz, F.~Sciulli, P.B.~Straub, L.~Wai, S.~Yang \\ {\it Columbia University, Nevis Labs., Irvington on Hudson, N.Y., USA} ~$^{q}$\\[6pt] P.~Borzemski, J.~Chwastowski, A.~Eskreys, K.~Piotrzkowski, M.~Zachara, L.~Zawiejski \\ {\it Inst. of Nuclear Physics, Cracow, Poland}~$^{j}$\\[6pt] L.~Adamczyk, B.~Bednarek, K.~Eskreys, K.~Jele\'{n}, D.~Kisielewska, T.~Kowalski, E.~Rulikowska-Zar\c{e}bska, L.~Suszycki, J.~Zaj\c{a}c\\ {\it Faculty of Physics and Nuclear Techniques, Academy of Mining and Metallurgy, Cracow, Poland}~$^{j}$\\[6pt] T.~K\c{e}dzierski, A.~Kota\'{n}ski, M.~Przybycie\'{n} \\ {\it Jagellonian Univ., Dept. of Physics, Cracow, Poland}~$^{k}$\\[6pt] L.A.T.~Bauerdick, U.~Behrens, J.K.~Bienlein, S.~B\"ottcher, C.~Coldewey, G.~Drews, M.~Flasi\'nski$^{5}$, D.J.~Gilkinson, P.~G\"ottlicher, B.~Gutjahr, T.~Haas, L.~Hagge, W.~Hain, D.~Hasell, H.~He\3ling, H.~Hultschig, Y.~Iga, P.~Joos, M.~Kasemann, R.~Klanner, W.~Koch, L.~K\"opke, U.~K\"otz, H.~Kowalski, W.~Kr\"oger, J.~Kr\"uger$^{4}$, J.~Labs, A.~Ladage, B.~L\"ohr, M.~L\"owe, D.~L\"uke, J.~Mainusch, O.~Ma\'{n}czak, J.S.T.~Ng, S.~Nickel, D.~Notz, K.~Ohrenberg, M.~Roco, M.~Rohde, J.~Rold\'an$^{6}$, U.~Schneekloth, J.~Schroeder, W.~Schulz, F.~Selonke, E.~Stiliaris$^{6}$, T.~Vo\3, D.~Westphal, G.~Wolf, C.~Youngman \\ {\it Deutsches Elektronen-Synchrotron DESY, Hamburg, Federal Republic of Germany}\\ [6pt] H.J.~Grabosch, A.~Leich, A.~Meyer, C.~Rethfeldt, S.~Schlenstedt \\ {\it DESY-Zeuthen, Inst. f\"ur Hochenergiephysik, Zeuthen, Federal Republic of Germany}\\[6pt] G.~Barbagli, P.~Pelfer \\ {\it University and INFN, Florence, Italy}~$^{f}$\\[6pt] G.~Anzivino, S.~De~Pasquale, S.~Qian, L.~Votano \\ {\it INFN, Laboratori Nazionali di Frascati, Frascati, Italy}~$^{f}$ \\[6pt] A.~Bamberger, A.~Freidhof, T.~Poser$^{7}$, S.~S\"oldner-Rembold, G.~Theisen, T.~Trefzger \\ {\it Fakult\"at f\"ur Physik der Universit\"at Freiburg i.Br., Freiburg i.Br., Federal Republic of Germany}~$^{c}$\\%[6pt] % % \clearpage % % N.H.~Brook, P.J.~Bussey, A.T.~Doyle, I.~Fleck, J.R.~Forbes, V.A.~Jamieson, C.~Raine, D.H.~Saxon, M.~Stavrianakou, A.S.~Wilson \\ {\it Dept. of Physics and Astronomy, University of Glasgow, Glasgow, U.K.}~$^{o}$\\[6pt] A.~Dannemann, U.~Holm, D.~Horstmann, H.~Kammerlocher$^{7}$, B.~Krebs$^{8}$, T.~Neumann, R.~Sinkus, K.~Wick \\ {\it Hamburg University, I. Institute of Exp. Physics, Hamburg, Federal Republic of Germany}~$^{c}$\\[6pt] E.~Badura, B.D.~Burow, A.~F\"urtjes$^{9}$, E.~Lohrmann, J.~Milewski, M.~Nakahata$^{10}$, N.~Pavel, G.~Poelz, W.~Schott, J.~Terron$^{6}$, F.~Zetsche\\ {\it Hamburg University, II. Institute of Exp. Physics, Hamburg, Federal Republic of Germany}~$^{c}$\\[6pt] T.C.~Bacon, R.~Beuselinck, I.~Butterworth, E.~Gallo, V.L.~Harris, B.H.~Hung, K.R.~Long, D.B.~Miller, P.P.O.~Morawitz, A.~Prinias, J.K.~Sedgbeer, A.F.~Whitfield \\ {\it Imperial College London, High Energy Nuclear Physics Group, London, U.K.}~$^{o}$\\[6pt] U.~Mallik, E.~McCliment, M.Z.~Wang, Y.~Zhang \\ {\it University of Iowa, Physics and Astronomy Dept., Iowa City, USA}~$^{p}$\\[6pt] P.~Cloth, D.~Filges \\ {\it Forschungszentrum J\"ulich, Institut f\"ur Kernphysik, J\"ulich, Federal Republic of Germany}\\[6pt] S.H.~An, S.M.~Hong, C.O.~Kim, T.Y.~Kim, S.W.~Nam, S.K.~Park, M.H.~Suh, S.H.~Yon \\ {\it Korea University, Seoul, Korea}~$^{h}$ \\[6pt] R.~Imlay, S.~Kartik, H.-J.~Kim, R.R.~McNeil, W.~Metcalf, V.K.~Nadendla \\ {\it Louisiana State University, Dept. of Physics and Astronomy, Baton Rouge, LA, USA}~$^{p}$\\[6pt] F.~Barreiro$^{11}$, G.~Cases, R.~Graciani, J.M.~Hern\'andez, L.~Herv\'as$^{12}$, L.~Labarga$^{12}$, J.~del~Peso, J.~Puga, J.F.~de~Troc\'oniz$^{13}$ \\ {\it Univer. Aut\'onoma Madrid, Depto de F\'{\i}sica Te\'or\'{\i}ca, Madrid, Spain}~$^{n}$\\[6pt] F.~Ikraiam, J.K.~Mayer$^{14}$, G.R.~Smith \\ {\it University of Manitoba, Dept. of Physics, Winnipeg, Manitoba, Canada}~$^{a}$\\[6pt] F.~Corriveau, D.S.~Hanna, J.~Hartmann, L.W.~Hung, J.N.~Lim, C.G.~Matthews, J.W.~Mitchell$^{15}$, P.M.~Patel, L.E.~Sinclair, D.G.~Stairs, M.~St.Laurent, R.~Ullmann \\ {\it McGill University, Dept. of Physics, Montreal, Quebec, Canada}~$^{a,}$ ~$^{b}$\\[6pt] V.~Bashkirov, B.A.~Dolgoshein, A.~Stifutkin\\ {\it Moscow Engineering Physics Institute, Mosocw, Russia} ~$^{l}$\\[6pt] G.L.~Bashindzhagyan, P.F.~Ermolov, L.K.~Gladilin, Y.A.~Golubkov, V.D.~Kobrin, V.A.~Kuzmin, A.S.~Proskuryakov, A.A.~Savin, L.M.~Shcheglova, A.N.~Solomin, N.P.~Zotov\\ {\it Moscow State University, Institute of Nuclear Physics, Moscow, Russia}~$^{m}$\\[6pt] S.~Bentvelsen, M.~Botje, F.~Chlebana, A.~Dake, J.~Engelen, P.~de~Jong$^{16}$, M.~de~Kamps, P.~Kooijman, A.~Kruse, V.~O'Dell$^{17}$, A.~Tenner, H.~Tiecke, W.~Verkerke, M.~Vreeswijk, L.~Wiggers, E.~de~Wolf, R.~van Woudenberg \\ {\it NIKHEF and University of Amsterdam, Netherlands}~$^{i}$\\[6pt] D.~Acosta, B.~Bylsma, L.S.~Durkin, K.~Honscheid, C.~Li, T.Y.~Ling, K.W.~McLean, W.N.~Murray, I.H.~Park, T.A.~Romanowski$^{18}$, R.~Seidlein \\ {\it Ohio State University, Physics Department, Columbus, Ohio, USA}~$^{p}$\\[6pt] D.S.~Bailey, G.A.~Blair$^{19}$, A.~Byrne, R.J.~Cashmore, A.M.~Cooper-Sarkar, D.~Daniels$^{20}$, \\ R.C.E.~Devenish, N.~Harnew, M.~Lancaster, P.E.~Luffman$^{21}$, J.~McFall, C.~Nath, A.~Quadt,\\ H.~Uijterwaal, R.~Walczak, F.F.~Wilson, T.~Yip \\ {\it Department of Physics, University of Oxford, Oxford, U.K.}~$^{o}$\\[6pt] G.~Abbiendi, A.~Bertolin, R.~Brugnera, R.~Carlin, F.~Dal~Corso, M.~De~Giorgi, U.~Dosselli, \\ F.~Gasparini, S.~Limentani, M.~Morandin, M.~Posocco, L.~Stanco, R.~Stroili, C.~Voci \\ {\it Dipartimento di Fisica dell' Universita and INFN, Padova, Italy}~$^{f}$\\[6pt] % % \clearpage J.~Bulmahn, J.M.~Butterworth, R.G.~Feild, B.Y.~Oh, J.J.~Whitmore$^{22}$\\ {\it Pennsylvania State University, Dept. of Physics, University Park, PA, USA}~$^{q}$\\[6pt] G.~D'Agostini, M.~Iori, G.~Marini, M.~Mattioli, A.~Nigro \\ {\it Dipartimento di Fisica, Univ. 'La Sapienza' and INFN, Rome, Italy}~$^{f}~$\\[6pt] J.C.~Hart, N.A.~McCubbin, K.~Prytz, T.P.~Shah, T.L.~Short \\ {\it Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, U.K.}~$^{o}$\\[6pt] E.~Barberis, N.~Cartiglia, T.~Dubbs, C.~Heusch, M.~Van Hook, B.~Hubbard, W.~Lockman, \\ H.F.-W.~Sadrozinski, A.~Seiden \\ {\it University of California, Santa Cruz, CA, USA}~$^{p}$\\[6pt] J.~Biltzinger, R.J.~Seifert, A.H.~Walenta, G.~Zech \\ {\it Fachbereich Physik der Universit\"at-Gesamthochschule Siegen, Federal Republic of Germany}~$^{c}$\\[6pt] H.~Abramowicz, S.~Dagan$^{23}$, A.~Levy$^{23}$ \\ {\it School of Physics,Tel-Aviv University, Tel Aviv, Israel} ~$^{e}$\\[6pt] T.~Hasegawa, M.~Hazumi, T.~Ishii, M.~Kuze, S.~Mine, Y.~Nagasawa, T.~Nagira, M.~Nakao, I.~Suzuki, K.~Tokushuku, S.~Yamada, Y.~Yamazaki \\ {\it Institute for Nuclear Study, University of Tokyo, Tokyo, Japan}~$^{g}$\\[6pt] M.~Chiba, R.~Hamatsu, T.~Hirose, K.~Homma, S.~Kitamura, S.~Nagayama, Y.~Nakamitsu \\ {\it Tokyo Metropolitan University, Dept. of Physics, Tokyo, Japan}~$^{g}$\\[6pt] R.~Cirio, M.~Costa, M.I.~Ferrero, L.~Lamberti, S.~Maselli, C.~Peroni, R.~Sacchi, A.~Solano, A.~Staiano \\ {\it Universita di Torino, Dipartimento di Fisica Sperimentale and INFN, Torino, Italy}~$^{f}$\\[6pt] M.~Dardo \\ {\it II Faculty of Sciences, Torino University and INFN - Alessandria, Italy}~$^{f}$\\[6pt] D.C.~Bailey, D.~Bandyopadhyay, F.~Benard, M.~Brkic, M.B.~Crombie, D.M.~Gingrich$^{24}$, G.F.~Hartner, K.K.~Joo, G.M.~Levman, J.F.~Martin, R.S.~Orr, C.R.~Sampson, R.J.~Teuscher \\ {\it University of Toronto, Dept. of Physics, Toronto, Ont., Canada}~$^{a}$\\[6pt] C.D.~Catterall, T.W.~Jones, P.B.~Kaziewicz, J.B.~Lane, R.S.~Saunders, J.~Shulman \\ {\it University College London, Physics and Astronomy Dept., London, U.K.}~$^{o}$\\[6pt] K.~Blankenship, J.~Kochocki, B.~Lu, L.W.~Mo \\ {\it Virginia Polytechnic Inst. and State University, Physics Dept., Blacksburg, VA, USA}~$^{q}$\\[6pt] W.~Bogusz, K.~Charchu\l a, J.~Ciborowski, J.~Gajewski, G.~Grzelak, M.~Kasprzak, M.~Krzy\.{z}anowski,\\ K.~Muchorowski, R.J.~Nowak, J.M.~Pawlak, T.~Tymieniecka, A.K.~Wr\'oblewski, J.A.~Zakrzewski, A.F.~\.Zarnecki \\ {\it Warsaw University, Institute of Experimental Physics, Warsaw, Poland}~$^{j}$ \\[6pt] M.~Adamus \\ {\it Institute for Nuclear Studies, Warsaw, Poland}~$^{j}$\\[6pt] Y.~Eisenberg$^{23}$, C.~Glasman, U.~Karshon$^{23}$, D.~Revel$^{23}$, A.~Shapira \\ {\it Weizmann Institute, Nuclear Physics Dept., Rehovot, Israel}~$^{d}$\\[6pt] I.~Ali, B.~Behrens, S.~Dasu, C.~Fordham, C.~Foudas, A.~Goussiou, R.J.~Loveless, D.D.~Reeder, \\ S.~Silverstein, W.H.~Smith \\ {\it University of Wisconsin, Dept. of Physics, Madison, WI, USA}~$^{p}$\\[6pt] T.~Tsurugai \\ {\it Meiji Gakuin University, Department of Physics, Yokohama, Japan}\\[6pt] S.~Bhadra$^{25}$, W.R.~Frisken, K.M.~Furutani \\ {\it York University, Dept. of Physics, North York, Ont., Canada}~$^{a}$\\[6pt] % \clearpage % \hspace*{1mm} $^{ 1}$ supported by Worldlab, Lausanne, Switzerland \\ \hspace*{1mm} $^{ 2}$ also at IROE Florence, Italy \\ \hspace*{1mm} $^{ 3}$ now at Univ. of Pisa, Italy \\ \hspace*{1mm} $^{ 4}$ now a self-employed consultant \\ \hspace*{1mm} $^{ 5}$ on leave from Jagellonian University, Cracow \\ \hspace*{1mm} $^{ 6}$ supported by the European Community \\ \hspace*{1mm} $^{ 7}$ now at DESY \\ \hspace*{1mm} $^{ 8}$ now with Herfurth GmbH, Hamburg \\ \hspace*{1mm} $^{ 9}$ now at CERN \\ $^{10}$ now at Institute for Cosmic Ray Research, University of Tokyo\\ $^{11}$ on leave of absence at DESY, supported by DGICYT \\ $^{12}$ partially supported by Comunidad Aut\'onoma de Madrid, Spain \\ $^{13}$ supported by Fundaci\'on Banco Exterior \\ $^{14}$ now at Univ. of Toronto \\ $^{15}$ now at Univ. of California, Davis, CA \\ $^{16}$ now at MIT, Cambridge, MA \\ $^{17}$ now at Fermilab., Batavia, IL \\ $^{18}$ now at Department of Energy, Washington \\ $^{19}$ now at RHBNC, Univ. of London, England \\ $^{20}$ Fulbright Scholar 1993-1994 \\ $^{21}$ now at Cambridge Consultants, Cambridge, U.K. \\ $^{22}$ on leave and supported by DESY 1993-94 \\ $^{23}$ supported by a MINERVA Fellowship\\ $^{24}$ now at Centre for Subatomic Research, Univ.of Alberta, Canada and TRIUMF, Vancouver, Canada \\ $^{25}$ now at DESY \\ \begin{tabular}{lp{15cm}} $^{a}$ &supported by the Natural Sciences and Engineering Research Council of Canada \\ $^{b}$ &supported by the FCAR of Quebec, Canada\\ $^{c}$ &supported by the German Federal Ministry for Research and Technology (BMFT)\\ $^{d}$ &supported by the MINERVA Gesellschaft f\"ur Forschung GmbH, and by the Israel Academy of Science \\ $^{e}$ &supported by the Israel Ministry of Energy, and by the German Israeli Foundation \\ $^{f}$ &supported by the Italian National Institute for Nuclear Physics (INFN) \\ $^{g}$ &supported by the Japanese Ministry of Education, Science and Culture (the Monbusho) and its grants for Scientific Research\\ $^{h}$ &supported by the Korean Ministry of Education and Korea Science and Engineering Foundation \\ $^{i}$ &supported by the Netherlands Foundation for Research on Matter (FOM)\\ $^{j}$ &supported by the Polish State Committee for Scientific Research (grant No. 204209101) \\ $^{k}$ &supported by the Polish State Committee for Scientific Research (grant No. PB 861/2/91 and No. 2 2372 9102, grant No. PB 2 2376 9102 and No. PB 2 0092 9101) \\ $^{l}$ &partially supported by the German Federal Ministry for Research and Technology (BMFT) \\ $^{m}$ &supported by the German Federal Ministry for Research and Technology (BMFT), the Volkswagen Foundation, and the Deutsche Forschungsgemeinschaft \\ $^{n}$ &supported by the Spanish Ministry of Education and Science through funds provided by CICYT \\ $^{o}$ &supported by the Particle Physics and Astronomy Research Council \\ $^{p}$ &supported by the US Department of Energy \\ $^{q}$ &supported by the US National Science Foundation \end{tabular} % % \end{document}