OBSERVATION OF EVENTS WITH A LARGE RAPIDITY GAP IN DEEP-INELASTIC SCATTERING AT HERA

Authors
DERRICK M KRAKAUER D MAGILL S MUSGRAVE B REPOND J REPOND S STANEK R TALAGA RL THRON J ARZARELLO F 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 CIRALLI F CONTIN A DAURIA S DELPAPA C FRASCONI F GIUSTI P IACOBUCCI G LAURENTI G LEVI G LIN Q LISOWSKI B MACCARRONE G MARGOTTI A MASSAM T NANIA R NEMOZ C PALMONARI F SARTORELLI G TIMELLINI R GARCIA YZ ZICHICHI A BARGENDE A CRITTENDEN J DESCH K DIEKMANN B DOEKER T FREY A GEERTS M GEITZ G HARTMANN H HAUN D HEINLOTH K HILGER E JAKOB HP KRAMARCZYK S KUCKES M MASS A MENGEL S MOLLEN J MONALDI D MUSCH H PAUL E SCHATTEVOY R SCHNEIDER JL SCHRAMM D WEDEMEYER R CASSIDY A CUSSANS DG DYCE N FOSTER B GILMORE R HEATH GP HEATH HF LANCASTER M LLEWELLYN TJ MALOS J MORGADO CJS TAPPER RJ WILSON SS YOSHIDA R RAU RR ARNEODO M SCHIOPPA M SUSINNO G BERNSTEIN A CALDWELL A GIALAS I PARSONS JA RITZ S SCIULLI F STRAUB PB WAI L YANG S BORZEMSKI P CHWASTOWSKI J DWURAZNY A ESKREYS A JAKUBOWSKI Z NIZIOL B PIOTRZKOWSKI K ZACHARA M ZAWIEJSKI L ADAMCZYK L BEDNAREK B ESKREYS K JELEN K KISIELEWSKA D KOWALSKI T RULIKOWSKAZAREBSKA E SUSZYCKI L ZAJAC J KEDZIERSKI T KOTANSKI A PRZYBYCIEN M BAUERDICK LAT BEHRENS U BIENLEIN JK BOTTCHER S COLDEWEY C DANNEMANN A DREWS G ERHARD P FLASINSKI M FLECK I GLASER R GOTTLICHER P GUTJAHR B HAAS T HAGGE L HAIN W HASELL D HULTSCHIG H JAHNEN G JOOS P KASEMANN M KLANNER R KOCH W KOPKE L KOTZ U KOWALSKI H KROGER W KRUGER J LABS J LADAGE A LOHR B LOWE M LUKE D MAINUSCH J MANCZAK O MOMAYEZI M NG JST NICKEL S NOTZ D POSNECKER KU ROHDE M ROLDAN J ROS E SCHNEEKLOTH U SCHROEDER J SCHULZ W SELONKE F STILIARIS E TSCHESLOG E TSURUGAI T VOGEL W WOLF G YOUNGMAN C GRABOSCH HJ LEICH A MEYER A RETHFELDT C SCHLENSTEDT S BARBAGLI G FRANCESCATO A NUTI M PELFER P ANZIVINO G CASACCIA R DEPASQUALE S QIAN S VOTANO L BAMBERGER A FREIDHOF A POSER T SOLDNERREMBOLD S THEISEN G TREFZGER T BROOK NH BUSSEY PJ DOYLE AT FORBES JR JAMIESON VA RAINE C SAXON DH BRUCKMANN H GLOTH G HOLM U KAMMERLOCHER H KREBS B NEUMANN T WICK K FURTJES A LOHRMANN E MILEWSKI J NAKAHATA M PAVEL N POELZ G SCHOTT W TERRON J ZETSCHE F BACON TC BEUSELINCK R BUTTERWORTH I GALLO E HARRIS VL MILLER DB PRINIAS A SEDGBEER JK VORVOLAKOS A WHITFIELD A BIENZ T KREUTZMANN H MALLIK U MCCLIMENT E ROCO M WANG MZ CLOTH P FILGES D AN SH HONG SM KIM CO KIM TY NAM SW PARK SK SUH MH YON SH IMLAY R KARTIK S KIM HJ MCNEIL RR METCALF W NADENDLA VK BARREIRO F CASES G HERVAS L LABARGA L DELPESO J DETROCONIZ JF IKRAIAM F MAYER JK SMITH GR CORRIVEAU F GILKINSON DJ HANNA DS HARTMANN J HUNG LW LIM JN DREES RM MITCHELL JW PATEL PM SINCLAIR LE STAIRS DG STLAURENT M ULLMANN R BASHINDZHAGYAN GL ERMOLOV PF GLADILIN LK GOLUBKOV YA KUZMIN VA KUZNETSOV EN SAVIN AA VORONIN AG ZOTOV NP BENTVELSEN S BOTJE M DAKE A ENGELEN J DEJONG P DEKAMPS M KOOIJMAN P KRUSE A VANDERLUGT H ODELL V TENNER A TIECKE H UIJTERWAAL H VREESWIJK M WIGGERS L DEWOLF E VANWOUDENBERG R BYLSMA B DURKIN LS HONSCHEID K LI C LING TY MCLEAN KW MURRAY WN PARK IH ROMANOWSKI TA SEIDLEIN R BLAIR GA BYRNE A CASHMORE RJ COOPERSARKAR AM DEVENISH RCE GINGRICH DM HALLAMBAKER PM HARNEW N KHATRI T LONG KR LUFFMAN P MCARTHUR I MORAWITZ P NASH J SMITH SJP ROOCROFT NC WILSON FF ABBIENDI G BRUGNERA R CARLIN R DALCORSO F DEGIORGI M DOSSELLI U GASPARINI F LIMENTANI S MORANDIN M POSOCCO M STANCO L STROILI R VOCI C BUTTERWORTH JM BULMAHN J FEILD G OH BY WHITMORE J CONTINO U DAGOSTINI G GUIDA M IORI M MARI SM MARINI G MATTIOLI M NIGRO A HART JC MCCUBBIN NA PRYTZ K SHAH TP SHORT TL BARBERIS E CARTIGLIA N HEUSCH C HUBBARD B LESLIE J LOCKMAN W OSHAUGHNESSY K SADROZINSKI HF SEIDEN A ZERZION D BADURA E BILTZINGER J SEIFERT RJ WALENTA AH ZECH G DAGAN S LEVY A HASEGAWA T HAZUMI M ISHII T KASAI S KUZE M MINE S NAGASAWA Y NAGIRA T NAKAO M OKUNO H SUZUKI I TOKUSHUKU K YAMADA S YAMAZAKI Y CHIBA M HAMATSU R HIROSE T KITAMURA S NAGAYAMA S NAKAMITSU Y CIRIO R COSTA M FERRERO MI LAMBERTI L MASELLI S PERONI C SOLANO A STAIANO A DARDO M BAILEY DC BANDYOPADHYAY D BENARD F BHADRA S BRKIC M BUROW BD CHLEBANA FS CROMBIE MB HARTNER GF LEVMAN GM MARTIN JF ORR RS PRENTICE JD SAMPSON CR STAIRS GG TEUSCHER RJ YOON TS BULLOCK FW CATTERALL CD GIDDINGS JC JONES TW KHAN AM LANE JB MAKKAR PL SHAW D SHULMAN J BLANKENSHIP K KOCHOCKI J LU B MO LW CHARCHULA K CIBOROWSKI J GAJEWSKI J GRZELAK G KASPRZAK M KRZYZANOWSKI M MUCHOROWSKI K NOWAK RJ PAWLAK JM STOPCZYNSKI A TYMIENIECKA T WALCZAK R WROBLEWSKI AK ZAKRZEWSKI JA ZARNECKI AF ADAMUS M ABRAMOWICZ H EISENBERG Y GLASMAN C KARSHON U MONTAG A REVEL D SHAPIRA A FOUDAS C FORDHAM C LOVELESS RJ GOUSSIOU A ALI I BEHRENS B DASU S REEDER DD SMITH WH SILVERSTEIN S FRISKEN WR FURUTANI KM IGA Y
Citation
M. Derrick et al., OBSERVATION OF EVENTS WITH A LARGE RAPIDITY GAP IN DEEP-INELASTIC SCATTERING AT HERA, Physics letters. Section B, 315(3-4), 1993, pp. 481-493
Citations number
40
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
315
Issue
3-4
Year of publication
1993
Pages
481 - 493
Database
ISI
SICI code
0370-2693(1993)315:3-4<481:OOEWAL>2.0.ZU;2-A
Abstract
In deep inelastic, neutral current scattering of electrons and protons at square-root s = 296 GeV, we observe in the ZEUS detector events wi th a large rapidity gap in the hadronic final state. They occur in the region of small Bjorken x and are observed up to Q2 of 100 GeV2. They account for about 5% of the events with Q2 greater-than-or-equal-to 1 0 GeV2. Their general properties are inconsistent with the dominant me chanism of deep inelastic scattering, where color is transferred betwe en the scattered quark and the proton remnant, and suggest that the un derlying production mechanism is the diffractive dissociation of the v irtual photon.