DIJET ANGULAR-DISTRIBUTIONS IN DIRECT AND RESOLVED PHOTOPRODUCTION ATHERA

Authors
DERRICK M KRAKAUER D MAGILL S MIKUNAS D MUSGRAVE B OKRASINSKI JR REPOND J STANEK R TALAGA RL ZHANG H MATTINGLY MCK BARI G BASILE M BELLAGAMBA L BOSCHERINI D BRUNI A BRUNI G BRUNI P ROMEO GC CASTELLINI G CIFARELLI L CINDOLO F CONTIN A CORRADI M GIALAS I GIUSTI P IACOBUCCI G LAURENTI G LEVI G MARGOTTI A MASSAM T NANIA R PALMONARI F POLINI A SARTORELLI G GARCIA YZ ZICHICHI A AMELUNG C BORNHEIM A CRITTENDEN J DEFFNER R DOEKER T ECKERT M FELD L FREY A GEERTS M GROTHE M HARTMANN H HEINLOTH K HEINZ L HILGER E JAKOB HP KATZ UF MENGEL S PAUL E PFEIFFER M REMBSER C SCHRAMM D STAMM J WEDEMEYER R CAMPBELLROBSON S CASSIDY A COTTINGHAM WN DYCE N FOSTER B GEORGE S HAYES ME HEATH GP HEATH HF PICCIONI D ROFF DG TAPPER RJ YOSHIDA R ARNEODO M AYAD R CAPUA M GARFAGNINI A IANNOTTI L SCHIOPPA M SUSINNO G CALDWELL A CARTIGLIA N JING Z LIU W PARSONS JA RITZ S SCIULLI F STRAUB PB WAI L YANG S ZHU Q BORZEMSKI P CHWASTOWSKI J ESKREYS A JAKUBOWSKI Z PRZYBYCIEN MB ZACHARA M ZAWIEJSKI L ADAMCZYK L BEDNAREK B JELEN K KISIELEWSKA D KOWALSKI T PRZYBYCIEN M RULIKOWSKAZAREBSKA E SUSZYCKI L ZAJAC J DULINSKI Z KOTANSKI A ABBIENDI G BAUERDICK LAT BEHRENS U BEIER H BIENLEIN JK CASES G DEPPE O DESLER K DREWS G FLASINSKI M GILKINSON DJ GLASMAN C GOTTLICHER P GROSSEKNETTER J HAAS T HAIN W HASELL D HESSLING A IGA Y JOHNSON KF JOOS P KASEMANN M KLANNER R KOCH W KOTZ U KOWALSKI H LABS J LADAGE A LOHR B LOWE M LUKE D MAINUSCH J MANCZAK O MILEWSKI J MONTEIRO T NG JST NOTZ D OHRENBERG K PIOTRZKOWSKI K ROCO M ROHDE M ROLDAN J SCHNEEKLOTH U SCHULZ W SELONKE F SURROW B VOSS T WESTPHAL D WOLF G WOLLMER U YOUNGMAN C ZEUNER W GRABOSCH HJ KHARCHILAVA A MARI SM MEYER A SCHLENSTEDT S WULFF N BARBAGLI G GALLO E PELFER P MACCARRONE G DEPASQUALE S VOTANO L BAMBERGER A EISENHARDT S TREFZGER T WOLFLE S BROMLEY JT BROOK NH BUSSEY PJ DOYLE AT SAXON DH SINCLAIR LE UTLEY ML WILSON AS DANNEMANN A HOLM U HORSTMANN D SINKUS R WICK K BUROW BD HAGGE L LOHRMANN E POELZ G SCHOTT W ZETSCHE F BACON TC BRUMMER N BUTTERWORTH I HARRIS VL HOWELL G HUNG BHY LAMBERTI L LONG KR MILLER DB PAVEL N PRINIAS A SEDGBEER JK SIDERIS D WHITFIELD AF MALLIK U WANG MZ WANG SM WU JT AN SH CHO GH KO BJ LEE SB NAM SW PARK HS PARK SK KARTIK S KIM HJ MCNEIL RR METCALF W NADENDLA VK BARREIRO F FERNANDEZ JP GRACIANI R HERNANDEZ JM HERVAS L LABARGA L MARTINEZ M DELPESO J PUGA J TERRON J DETROCONIZ JF CORRIVEAU F HANNA DS HARTMANN J HUNG LW LIM JN MATTHEWS CG PATEL PM RIVELINE M STAIRS DG STLAURENT M ULLMANN R ZACEK G TSURUGAI T 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 ENGELEN J DEKAMPS M KOOIJMAN P KRUSE A VANSIGHEM A TIECKE H VERKERKE W VOSSEBELD J VREESWIJK M WIGGERS L DEWOLF E VANWOUDENBERG R ACOSTA D BYLSMA B DURKIN LS GILMORE J LI C LING TY NYLANDER P PARK IH ROMANOWSKI TA BAILEY DS 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 BERTOLIN A BRUGNERA R CARLIN R DALCORSO F DEGIORGI M DOSSELLI U LIMENTANI S MORANDIN M POSOCCO M STANCO L STROILI R VOCI C ZUIN F DAGOSTINI G MARINI G NIGRO A TASSI E HART JC MCCUBBIN NA SHAH TP BARBERIS E DUBBS T HEUSCH C VANHOOK M LOCKMAN W RAHN JT SADROZINSKI HFW SEIDEN A WILLIAMS DC BILTZINGER J SEIFERT RJ SCHWARZER O WALENTA AH ZECH G ABRAMOWICZ H BRISKIN G DAGAN S LEVY A FLECK JI INUZUKA M ISHII T KUZE M MINE S NAKAO M SUZUKI I TOKUSHUKU K UMEMORI K YAMADA S YAMAZAKI Y CHIBA M HAMATSU R HIROSE T HOMMA K KITAMURA S MATSUSHITA T YAMUCHI K CIRIO R COSTA M FERRERO MI MASELLI S PERONI C SACCHI R SOLANO A STAIANO A DARDO M BAILEY DC BENARD F BRKIC M FAGERSTROEM CP HARTNER GF JOO KK LEVMAN GM MARTIN JF ORR RS POLENZ S SAMPSON CR SIMMONS D TEUSCHER RJ BUTTERWORTH JM CATTERALL CD JONES TW KAZIEWICZ PB LANE JB SAUNDERS RL SHULMAN J SUTTON MR LU B MO LW BOGUSZ W CIBOROWSKI J GAJEWSKI J GRZELAK G KASPRZAK M KRZYZANOWSKI M MUCHOROWSKI K NOWAK RJ PAWLAK JM TYMIENIECKA T WROBLEWSKI AK ZAKRZEWSKI JA ZARNECKI AF COLDEWEY C EISENBERG Y HOCHMAN D KARSHON U REVEL D ZERZION D BADGETT WF BREITWEG J CHAPIN D CROSS R DASU S FOUDAS C LOVELESS RJ MATTINGLY S REEDER DD SILVERSTEIN S SMITH WH VAICIULIS A WODARCZYK M BHADRA S CARDY ML FRISKEN WR KHAKZAD M MURRAY WN SCHMIDKE WB
Citation
M. Derrick et al., DIJET ANGULAR-DISTRIBUTIONS IN DIRECT AND RESOLVED PHOTOPRODUCTION ATHERA, Physics letters. Section B, 384(1-4), 1996, pp. 401-413
Citations number
40
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
384
Issue
1-4
Year of publication
1996
Pages
401 - 413
Database
ISI
SICI code
0370-2693(1996)384:1-4<401:DAIDAR>2.0.ZU;2-R
Abstract
Jet photoproduction, where the two highest transverse energy (E(T)(jet )) jets have E(T)(jet) above 6 GeV and a jet-jet invariant mass above 23 GeV, has been studied with the ZEUS detector at the HERA ep collide r. Resolved and direct photoproduction samples have been separated. Th e cross section as a function of the angle between the jet-jet axis an d the beam direction in the dijet rest frame has been measured for the two samples. The measured angular distributions differ markedly from each other. They agree with the predictions of QCD calculations, where the different angular distributions reflect the different spins of th e quark and gluon exchanged in the hard subprocess.