MEASUREMENT OF THE DIFFRACTIVE STRUCTURE-FUNCTION IN DEEP-INELASTIC SCATTERING AT HERA

Authors
DERRICK T KRAKAUER D MAGILL S MIKUNAS D MUSGRAVE B REPOND J STANEK R TALAGA RL ZHANG H AYAD R BARI G BASILE M BELLAGAMBA L BOSCHERINI D BRUNI A BRUNI G BRUNI P ROMEO GC CASTELLINI G CHIARINI M CIFARELLI L CINDOLO F CONTIN A CORRADI M GIALAS I GIUSTI P IACOBUCCI G LAURENTI G LEVI G MARGOTTI A MASSAM T NANIA R NEMOZ C PALMONARI F POLINI A SARTORELLI G TIMELLINI R GARCIA YZ ZICHICHI A BARGENDE A CRITTENDEN J DESCH K DIEKMANN B DOEKER T ECKERT M FELD L FREY A GEERTS M GEITZ G GROTHE M HARTMANN H HEINLOTH K HILGER E JAKOB HP KATZ UF MARI SM MASS A MENGEL S MOLLEN J PAUL E REMBSER C SCHRAMM D STAMM J WEDEMEYER R CAMPBELLROBSON S CASSIDY A DYCE N FOSTER B GEORGE S GILMORE R HEATH GP HEATH HF LLEWELLYN TJ MORGADO CJS NORMAN DJP OMARA JA TAPPER RJ WILSON SS YOSHIDA R RAU RR ARNEODO M CAPUA M GARFAGNINI A IANNOTTI L SCHIOPPA M SUSINNO G BERNSTEIN A CALDWELL A CARTIGLIA N PARSONS JA RITZ S SCIULLI F STRAUB PB WAI L YANG S ZHU Q BORZEMSKI P CHWASTOWSKI J ESKREYS A PIOTRZKOWSKI K ZACHARA M ZAWIEJSKI L ADAMCZYK L BEDNAREK B JELEN K KISIELEWSKA D KOWALSKI T RULIKOWSKAZAREBSKA E SUSZYCKI L ZAJAC J KOTANSKI A PRZYBYCIEN M BAUERDICK LAT BEHRENS U BEIER H BIENLEIN JK COLDEWEY C DEPPE O DESLER K DREWS G FLASINSKI M GILKINSON DJ GLASMAN C GOTTLICHER P GROSSEKNETTER J GUTJAHR B HAAS T HAIN W HASELL D HESSLING H IGA Y JOOS P KASEMANN M KLANNER R KOCH W KOPKE L KOTZ U KOWALSKI H LABS J LADAGE A LOHR B LOWE M LUKE D MAINUSCH J MANCZAK O MONTEIRO T NG JST NICKEL S NOTZ D OHRENBERG K ROCO M ROHDE M ROLDAN J SCHNEEKLOTH U SCHULZ W SELONKE F STILIARIS E SURROW B VOSS T WESTPHAL D WOLF G YOUNGMAN C ZHOU JF GRABOSCH HJ KHARCHILAVA A LEICH A MATTINGLY MCK MEYER A SCHLENSTEDT S WULFF N BARBAGLI G PELFER P ANZIVINO G MACCARRONE G DEPASQUALE S VOTANO L BAMBERGER A EISENHARDT S FREIDHOF A SOLDNERREMBOLD S SCHROEDER J TREFZGER T BROOK NH BUSSEY PJ DOYLE AT FLECK JI SAXON DH UTLEY ML WILSON AS DANNEMANN A HOLM U HORSTMANN D NEUMANN T SINKUS R WICK K BADURA E BUROW BD HAGGE L LOHRMANN E MILEWSKI J NAKAHATA M PAVEL N POELZ G SCHOTT W ZETSCHE F BACON TC BUTTERWORTH I GALLO E HARRIS VL HUNG BYH LONG KR MILLER DB MORAWITZ PPO PRINIAS A SEDGBEER JK WHITFIELD AF MALLIK U MCCLIMENT E WANG MZ WANG SM WU JT ZHANG Y CLOTH P FILGES D AN SH HONG SM NAM SW PARK SK SUH MH YON SH IMLAY R KARTIK S KIM HJ MCNEIL RR METCALF W NADENDLA VK BARREIRO F CASES G FERNANDEZ JP GRACIANI R HERNANDEZ JM HERVAS L LABARGA L MARTINEZ M DELPESO J PUGA J TERRON J DETROCONIZ JF SMITH GR CORRIVEAU F HANNA DS HARTMANN J HUNG LW LIM JN MATTHEWS CG PATEL PM SINCLAIR LE STAIRS DG STLAURENT M ULLMANN R ZACEK G BASHKIROV V DOLGOSHEIN BA STIFUTKIN A BASHINDZHAGYAN GL ERMOLOV PF GLADILIN LK GOLUBKOV YA KOBRIN VD KORZHAVINA IA KUZMIN VA LUKINA OY PROSKURYAKOV AS SAVIN AA SHCHEGLOVA LM SOLOMIN AN ZOTOV NP BOTJE M CHLEBANA F DAKE A ENGELEN J DEKAMPS M KOOIJMAN P KRUSE A TIECKE H VERKERKE W VREESWIJK M WIGGERS L DEWOLF E VANWOUDENBERG R ACOSTA D BYLSMA B DURKIN LS HONSCHEID K LI C LING TY MCLEAN KW MURRAY WN PARK IH ROMANOWSKI TA SEIDLEIN R BAILEY DS BYRNE A CASHMORE RJ COOPERSARKAR AM DEVENISH RCE HARNEW N LANCASTER M LINDEMANN L MCFALL JD NATH C NOYES VA QUADT A TICKNER JR UIJTERWAAL H WALCZAK R WATERS DS WILSON FF YIP T ABBIENDI G BERTOLIN A BRUGNERA R CARLIN R DALCORSO F DEGIORGI M DOSSELLI U LIMENTANI S MORANDIN M POSOCCO M STANCO L STROILI R VOCI C BULMAHN J BUTTERWORTH JM FEILD RG OH BY WHITMORE JJ DAGOSTINI G MARINI G NIGRO A TASSI E HART JC MCCUBBIN NA PRYTZ K SHAH TP SHORT TL BARBERIS E DUBBS T HEUSCH C VANHOOK M HUBBARD B LOCKMAN W RAHN JT SADROZINSKI HFW SEIDEN A BILTZINGER J SEIFERT RJ SCHWARZER O WALENTA AH ZECH G ABRAMOWICZ H BRISKIN G DAGAN S LEVY A HASEGAWA T HAZUMI M ISHII T KUZE M MINE S NAGASAWA Y NAKAO M SUZUKI I TOKUSHUKU K YAMADA S YAMAZAKI Y CHIBA M HAMATSU R HIROSE T HOMMA K KITAMURA S NAKAMITSU Y YAMAUCHI K CIRIO R COSTA M FERRERO MI LAMBERTI L MASELLI S PERONI C SACCHI R SOLANO A STAIANO A DARDO M BAILEY DC BANDYOPADHYAY D BENARD F BRKIC M CROMBIE MB GINGRICH DM HARTNER GF JOE KK LEVMAN GM MARTIN JF ORR RS SAMPSON CR TEUSCHER RJ CATTERALL CD JONES TW KAZIEWICZ PB LANE JB SAUNDERS RL SHULMAN J BLANKENSHIP K LU B MO LW BOGUSZ W CHARCHULA K CIBOROWSKI J GAJEWSKI J GRZELAK G KASPRZAK M KRZYZANOWSKI M MUCHOROWSKI K NOWAK RJ PAWLAK JM TYMIENIECKA T WROBLEWSKI AK ZAKRZEWSKI JA ZAMECKI AF ADAMUS M EISENBERG Y KARSHON U REVEL D ZERZION D ALI I BADGETT WF BEHRENS B DASU S FORDHAM C FOUDAS C GOUSSIOU A LOVELESS RJ REEDER DD SILVERSTEIN S SMITH WH VAICIULIS A WODARCZYK M TSURUGAI T BHADRA S CARDY ML FAGERSTROEM CP FRISKEN WR FURUTANI KM KHAKZAD M SCHMIDKE WB
Citation
T. Derrick et al., MEASUREMENT OF THE DIFFRACTIVE STRUCTURE-FUNCTION IN DEEP-INELASTIC SCATTERING AT HERA, Zeitschrift fur Physik. C, Particles and fields, 68(4), 1995, pp. 569-584
Citations number
61
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
68
Issue
4
Year of publication
1995
Pages
569 - 584
Database
ISI
SICI code
0170-9739(1995)68:4<569:MOTDSI>2.0.ZU;2-F
Abstract
This paper presents an analysis of the inclusive properties of diffrac tive deep inelastic scattering events produced in ep interactions at H ERA. The events are characterised by a rapidity gap between the outgoi ng proton system and the remaining hadronic system. Inclusive distribu tions are presented and compared with Monte Carlo models for diffracti ve processes. The data are consistent with models where the pomeron st ructure function has a hard and a soft contribution. The diffractive s tructure function is measured as a function of x(p), the momentum frac tion lost by the proton, of beta, the momentum fraction of the struck quark with respect to x(p), and of Q(2) in the range 6.3 10(-4) < x(p) < 10(-2), 0.1 < .beta < 0.8 and 8 < Q(2) < 100 GeV2. The x(p) depende nce is consistent with the form (1/x(p))(alpha) where alpha = 1.30 +/- 0.08 (stat)(-0.14)(+0.08) (sys) in all bins of beta and Q(2). In the measured Q(2) range, the diffractive structure function approximately scales with Q(2) at fixed beta. In an Ingelman-Schlein type model wher e commonly used pomeron flux factor normalisations are assumed, it is found that the quarks within the pomeron do not saturate the momentum sum rule.