Observation of deep inelastic scattering at low x

T Ahmed ,K Johannsen,Ch Ley,U Gensch,K Wacker,B Naroska,A Drescher,U Krüger,M Kuhlen,M Eberle,H Spitzer,J Feltesse,M Rudowicz,G Franke,J Moreels,M Nyberg,P Biddulph,H Henschel,E Barrelet,R Marshall,A Rostovtsev,K Rybicki,R Prosi,V Milone,W Flauger,L Hajduk,R Haydar,H Genzel,U Berthon,F Moreau,T Merz,B Stella,J Stier,H Küster,L Goerlich,G Heinzelmann,V Tchernyshov,R Hedgecock,P Goritchev,H Hufnagel,R Steinberg,S Orenstein,P Lanius,J Duboc,J.C Bizot,L Del Buono,U Siewert,M Danilov,W.J Haynes,D Levin,W Von Schlippe,M Ibbotson,A Buniatian,U Obrock,J Gayler,J Heatherington,C Jacobsson,A Leuschner,U Seehausen,H Grässler,V Korbel,T Greenshaw,I Tichomirov,R Felst,V Schröder,C Kiesling,Th Wolff,D Feeken,P Kostka,C Leverenz,H Bergstein,K Müller,S Kermiche,C Zeitnitz,G Grindhammer,J Tutas,E Malinovski,W Bartel,R Grässler,P Dingus,A Gellrich,J Formánek,G Cozzika,A Schwind,E Evrard,H Shooshtari,I Sheviakov,A De Roeck,J Harjes,A Courau,G Bertrand-Coremans,O Hamon,A Mavroidis,Y Soloviev,S Levonian,E Deffur,M Steenbock,R Kaschowitz,F Charles,J Cvach,S Willard,D Lüers,P Verrecchia,I Herynek,N Wulff,E Ryseck,M Hapke,F Kole,D Haidt,A Semenov,P Steffen,A Lebedev,J Martyniak,R Herma,M Gennis,E Peppel,M Forbush,J Turnau,G Knies,D Düllmann,N Sahlmann,M Seman,Y Vazdik,D Newton,M Rietz,G Lindström,K Rauschnabel,R Roosen,C Dollfus,H Krehbiel,M Arpagaus,A Lindner,L.A Womersley,M Korn,S Eichenberger,C Pascaud,J Marks,U Kathage,A Walther,F Ferrarotto,P Truöl,R Vick,C.D Hilton,H Lohmander,S Egli,V Nagovizin,M Winde,G Villet,M Zimmer,S Kasarian,G Bushhorn,G Weber,U Straumann,W.D Dau,R Gerhards,N Magnussen,S Mikocki,M Savitsky,P Ribarics,F Eisele,J Strachota,V Brisson,G Siegmon,J Ebert,D Handschuh,M Fleischer,M Vecko,H Bärwolff,A Usik,E Eisenhandler,K Stephens,A Wegner,J Bán,Ph Huet,P Kasselmann,Ch Berger,B Fominykh,J Garvey,B Delcourt,J Haack,J Hladký,W Zimmermann,J Ferencei,S Mani,L Criegee,W Struczinski,V Efremenko,R Eichler,J Kurzhöfer,W Braunschweig,O Dünger,C Trenkel,F Niebergall,P Hill,E Gabathuler,K Gamerdinger,W Hildesheim,U Bassler,J Riedlberger,D Wegener,S Masson,W Pilgram,D Gillespie ,N Ellis ,J P Kubenka ,H Meyer ,A Valkárová ,P Bosetti ,M David ,F Ould-Saada ,M Besançon ,A W E Dann ,R J Thompson ,W Scobel ,M Goldberg ,C Vallée ,U Goerlach ,J E Olsson ,D Clarke ,D Pitzl ,C Grab ,D Krücker ,G G Winter ,A Babaev ,T Kurča ,M Rüffer ,M Erdmann ,P Loch ,F.w Büsser ,H P Wellisch ,R Nisius ,C Schmidt ,A Jachołkowska ,A Belousov ,H Jung ,Sarah Peters ,A Vartapetian ,T R Ebert ,H P Beck ,G Thompson ,J Žáček ,V Blobel ,V Shekelyan ,H Steiner ,Denis Johnson ,M A Jabiol ,A Fedotov ,E M Hanlon ,P Baranov ,I O Skillicorn ,I R Kenyon ,J Bürger ,H Oberlack ,Ch Pichler ,P Závada ,C Kleinwort ,G C Lopez ,E Monnier ,S Robertson ,J F Laporte ,M Colombo ,W Schmitz ,L Godfrey ,M Jaffré ,G Nowak ,P Marage ,J P Phillips ,L Urbán ,H Kolanoski ,E Sánchez ,F.w Brasse ,J D Dowell ,H.h Duhm ,P Schleper ,N Huot ,P Flower ,Bernard Andrieu ,V Riech ,A.e Wright ,C Grüber ,H T Phillips ,П Мурін ,Josephine Morton ,D P C Sankey ,Thomas Köhler ,J Martens ,G Flügge ,S J Mcmahon ,S J Maxfield ,S A Murray ,C Bourdarios ,Raivo Sell ,M Devel ,F Raupach ,Y Sirois ,D Bruncko ,Chris Meyer ,S Bürke ,A.b Clegg ,M Klein ,D Schmidt ,Patrick Fuhrmann ,J M Foster ,Б И Кузник ,H H Kaufmann ,I F Fensome ,P Reimer ,U Braun ,A Mehta ,Helmut Greif ,S V Rusakov ,E Binder ,P Schacht ,E Elsen ,H J Behrend ,P Robmann ,Richard E Taylor ,A M Goodall ,M W Krasny ,K Meier ,R J Ellison ,V Boudry ,G D Patel ,Patrick Van Esch ,I W Walker ,K C Hoeger ,G Eckerlin ,L Jönsson ,H K Nguyen ,S.k Kotelnikov ,V A Andreev ,E Vogel ,G Bernardi ,V Hedberg ,J A Coughlan ,A Fomenko ,J V Morris ,L Favart ,M Schulz ,P Smirnov ,E Fretwurst ,G W Noyes ,Rudolf Langkau ,G A Beck ,J Smith ,T Naumann ,J P Sutton ,P Staroba ,L Smolík ,H B Dreis ,L Johnson ,P Hartz ,Yang Feng ,J Meyer ,H U Martyn ,C Coutures ,A J Campbell ,K Borras ,I Gorelov ,R Martin ,T P Yiou ,S D Kolya ,C Royon ,J B Dainton ,T Carli ,Š Valkár ,R Bernet ,H Ziaeepour ,R C W Henderson ,R Lander ,P I P Kalmus ,M P J Landon ,J Sacton ,F Zomer

doi:10.1016/0370-2693(93)90278-p

Abstract

Measurements of the scattered electron energy spectrum and the differential cross sections d σ/d log( x) and dσ/d Q 2 for inclusive neutral current deep inelastic electron-proton scattering are presented. The data were obtained with the H1 detector at HERA during its first running period in which 26.7 GeV electrons collided with 820 GeV protons. The data correspond to an integrated luminosity of 1.3 nb −1 and allow the first studies of the structure of the proton at values of x down to 10 −4 for Q 2 > 5 GeV 2.

Full Text