FIRST MEASUREMENT OF THE DEEP-INELASTIC STRUCTURE OF PROTON DIFFRACTION

Authors
AHMED T AID S ANDREEV V ANDRIEU B APPUHN RD ARPAGAUS M BABAEV A BAEHR J BAN J BAN Y BARANOV P BARRELET E BARTEL W BARTH M BASSLER U BECK HP BEHREND HJ BELOUSOV A BERGER C BERNARDI G BERNET R BERTRANDCOREMANS G BESANCON M BEYER R BIDDULPH P BISPHAM P BIZOT JC BLOBEL V BORRAS K BOTTERWECK F BOUDRY V BRAEMER A BRASSE F BRAUNSCHWEIG W BRISSON V BRUNCKO D BRUNE C BUCHHOLZ R BUNGENER L BURGER J BUSSER FW BUNIATIAN A BURKE S BURTON M BUSCHHORN G CAMPBELL AJ CARLI T CHARLES F CLARKE D CLEGG AB CLERBAUX B COLOMBO M CONTRERAS JG CORMACK C COUGHLAN JA COURAU A COUTURES C COZZIKA G CRIEGEE L CUSSANS DG CVACH J DAGORET S DAINTON JB DAU WD DAUM K DAVID M DEFFUR E DELCOURT B DELBUONO L DEROECK A DEWOLF EA DINEZZA P DOLLFUS C DOWELL JD DREIS HB DROUTSKOI A DUBOC J DULLMANN D DUNGER O DUHM H EBERT J EBERT TR ECKERLIN G EFREMENKO V EGLI S EHRLICHMANN H EICHENBERGER S EICHLER R EISELE F EISENHANDLER E ELLISON RJ ELSEN E ERDMANN M ERDMANN W EVRARD E FAVART L FEDOTOV A FEEKEN D FELST R FELTESSE J FERENCEI J FERRAROTTO F FLAMM K FLEISCHER M FLIESER M FLUGGE G FOMENKO A FORBUSH M FORMANEK J FOSTER JM FRANKE G FRETWURST E GABATHULER E GABATHULER K GAMERDINGER K GARVEY J GAYLER J GEBAUER M GELLRICH A GENZEL H GERHARDS R GOERLACH U GOERLICH L GOGITIDZE N GOLDBERG M GOLDNER D GONZALEZPINEIRO B GORELOV I GORITCHEV P GRAB C GRASSLER H GRASSLER R GREENSHAW T GRINDHAMMER G GRUBER A GRUBER C HAACK J HAIDT D HAJDUK L HAMON O HAMPEL M HANLON EM HAPKE M HAYNES WJ HEATHERINGTON J HEINZELMANN G HENDERSON RCW HENSCHEL H HERYNEK I HESS MF HILDESHEIM W HILL P HILLER KH HILTON CD HLADKY J HOEGER KC HOPPNER M HORISBERGER R HUDGSON VL HUET P HUTTE M HUFNAGEL H IBBOTSON M ITTERBECK H JABIOL MA JACHOLKOWSKA A JACOBSSON C JAFFRE M JANOTH J JANSEN T JONSSON L JOHNSON DP JOHNSON L JUNG H KALMUS PIP KANT D KASCHOWITZ R KASSELMANN P KATHAGE U KATZY J KAUFMANN HH KAZARIAN S KENYON IR KERMICHE S KEUKER C KIESLING C KLEIN M KLEINWORT C KNIES G KO W KOHLER T KOHNE JH KOLANOSKI H KOLE F KOLYA SD KORBEL V KORN M KOSTKA P KOTELNIKOV SK KRAMERKAMPER T KRASNY MW KREHBIEL H KRUCKER D KRUGER U KRUNERMARQUIS U KUBENKA JP KUSTER H KUHLEN M KURCA T KURZHOFER J KUZNIK B LACOUR D LAMARCHE F LANDER R LANDON MPJ LANGE W LANIUS P LAPORTE JF LEBEDEV A LEVERENZ C LEVONIAN S LEY C LINDNER A LINDSTROM G LINK J LINSEL F LIPINSKI J LIST B LOBO G LOCH P LOHMANDER H LOMAS J LOPEZ GC LUBIMOV V LUKE D MAGNUSSEN N MALINOVSKI E MANI S MARACEK R MARAGE P MARKS J MARSHALL R MARTENS J MARTIN R MARTYN HU MARTYNIAK J MASSON S MAVROIDIS T MAXFIELD SJ MCMAHON SJ MEHTA A MEIER K MERCER D MERZ T MEYER CA MEYER H MEYER J MIKOCKI S MILSTEAD D MOREAU F MORRIS JV MROCZKO E MULLER G MULLER K MURIN P NAGOVIZIN V NAHNHAUER R NAROSKA B NAUMANN T NEWMAN PR NEWTON D NEYRET D NGUYEN HK NICHOLLS TC NIEBERGALL F NIEBUHR C NIEDZBALLA C NISIUS R NOWAK G NOYES GW NYBERGWERTHER M OAKDEN M OBERLACK H OBROCK U OLSSON JE OZEROV D PANARO E PANITCH A PASCAUD C PATEL GD PEPPEL E PEREZ E PHILLIPS JP PICHLER C PITZL D POPE G PRELL S PROSI R RABBERTZ K RADEL G RAUPACH F REIMER P REINSHAGEN S RIBARICS P RICK H RIECH V RIEDLBERGER J RIESS S RIETZ M RIZVI E ROBERTSON SM ROBMANN P ROLOFF HE ROOSEN R ROSENBAUER K ROSTOVTSEV A ROUSE F ROYON C RUTER K RUSAKOV S RYBICKI K RYLKO R SAHLMANN N SANCHEZ E SANKEY DPC SCHACHT P SCHIEK S SCHLEPER P VONSCHLIPPE W SCHMIDT C SCHMIDT D SCHMIDT G SCHONING A SCHRODER V SCHUHMANN E SCHWAB B SCHWIND A SEFKOW F SEIDEL M SELL R SEMENOV A SHEKELYAN V SHEVIAKOV I SHOOSHTARI H SHTARKOV LN SIEGMON G SIEWERT U SIROIS Y SKILLICORN IO SMIRNOV P SMITH JR SOLOCHENKO V SOLOVIEV Y SPIEKERMANN J SPITZER H STAROSTA R STEENBOCK M STEFFEN P STEINBERG R STELLA B STEPHENS K STIER J STIEWE J STOSSLEIN U STOLZE K STRACHOTA J STRAUMANN U STRUCZINSKI W SUTTON JP TAPPROGGE S TAYLOR RE TCHERNYSHOV V THIEBAUX C THOMPSON G TRUOL P TURNAU J TUTAS J UELKES P USIK A VALKAR S VALKAROVA A VALLEE C VANESCH P VANMECHELEN P VARTAPETIAN A VAZDIK Y VERRECCHIA P VILLET G WACKER K WAGENER A WAGENER M WALKER IW WALTHER A WEBER G WEBER M WEGENER D WEGNER A WELLISCH HP WEST LR WILLARD S WINDE M WINTER GG WITTEK C WRIGHT AE WUNSCH E WULFF N YIOU TP ZACEK J ZARBOCK D ZHANG Z ZHOKIN A ZIMMER M ZIMMERMANN W ZOMER F ZUBER K
Citation
T. Ahmed et al., FIRST MEASUREMENT OF THE DEEP-INELASTIC STRUCTURE OF PROTON DIFFRACTION, Physics letters. Section B, 348(3-4), 1995, pp. 681-696
Citations number
48
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
348
Issue
3-4
Year of publication
1995
Pages
681 - 696
Database
ISI
SICI code
0370-2693(1995)348:3-4<681:FMOTDS>2.0.ZU;2-L
Abstract
A measurement is presented, using data taken with the H1 detector at H ERA, of the contribution of diffractive interactions to deep-inelastic electron-proton (ep) scattering in the kinematic range 8.5 < Q(2) < 5 0 GeV2, 2.4 x 10(-4) < Bjorken-x < 0.0133, and 3.7 x 10(-4) < xp < 0.0 43. The diffractive contribution to the proton structure function F-2( x, e2) is evaluated as a function of the appropriate deep-inelastic sc attering variables xp, Q(2), and beta (= x/xp) using a class of deep-i nelastic ep scattering events with no hadronic energy flow in an inter val of pseudo-rapidity adjacent to the proton beam direction. The depe ndence of this contribution on xp is measured to be xp(-n) with n = 1. 19 +/- 0.06(stat.) +/- 0.07(syst.) independent of beta and Q(2), which is consistent with both a diffractive interpretation and a factorisab le ep diffractive cross section. A first measurement of the deep-inela stic structure of the pomeron in the form of the Q(2) and beta depende nces of a factorised structure function is presented. For all measured beta, this structure function is observed to be consistent with scale invariance.