Two-jet Mass Distributions at the CERN Proton-Antiproton Collider C ALBAJAR , MG ALBROW , OC ALLKOFER , A ASTBURY , B AUBERT , T AXON , C BACCI , T BACON , N BAINS , JR BATLEY , G BAUER , S BEINGESSNER , A BETTINI , A BEZAGUET , R BONINO , K BOS , E BUCKLEY , G BUSETTO , P CATZ , P CENNINI , S CENTRO , F CERADINI , DG CHARLTON , G CIAPETTI , S CITTOLIN , D CLARKE , D CLINE , C COCHET , J COLAS , P COLAS , M CORDEN , JA COUGHLAN , G COX , D DAU , JP DEBRION , M DEGIORGI , M DELLANEGRA , M DEMOULIN , D DENEGRI , A DICIACCIO , FJD HEDO , L DOBRZYNSKI , J DORENBOSCH , JD DOWELL , E DUCHOVNI , K EGGERT , E EISENHANDLER , N ELLIS , P ERHARD , H FAISSNER , IF FENSOME , A FERRANDO , M FINCKEKEELER , P FLYNN , G FONTAINE , J GARVEY , D GEE , S GEER , A GEISER , C GHESQUIERE , P GHEZ , C GHIGLINO , Y GIRAUDHERAUD , A GIVERNAUD , A GONIDEC , H GRASSMANN , J GREGORY , W HAYNES , SJ HAYWOOD , DJ HOLTHUIZEN , M IKEDA , W JANK , M JIMACK , G JORAT , D JOYCE , PIP KALMUS , V KARIMAKI , R KEELER , I KENYON , A KERNAN , A KHAN , W KIENZLE , R KINNUNEN , M KRAMMER , J KROLL , D KRYN , F LACAVA , M LANDON , JP LEES , R LEUCHS , S LEVEGRUN , S LI , M LINDGREN , D LINGLIN , P LIPA , E LOCCI , T MARKIEWICZ , C MARKOU , M MARKYTAN , MA MARQUINA , G MAURIN , JP MENDIBURU , A MENEGUZZO , JP MERLO , T MEYER , MN MINARD , M MOHAMMADI , K MORGAN , HG MOSER , A MOULIN , B MOURS , T MULLER , L NAUMANN , P NEDELEC , A NISATI , A NORTON , F PAUSS , C PERAULT , E PETROLO , GP MORTARI , E PIETARINEN , C PIGOT , M PIMIA , A PLACCI , JP PORTE , M PREISCHL , E RADERMACHER , T REDELBERGER , H REITHLER , JP REVOL , D ROBINSON , T RODRIGO , J ROHLF , C RUBBIA , G SAJOT , G SALVINI , J SASS , D SAMYN , D SCHINZEL , M SCHRODER , A SCHWARTZ , W SCOTT , C SEEZ , TP SHAH , I SHEER , I SIOTIS , D SMITH , R SOBIE , P SPHICAS , J STRAUSS , J STREETS , C STUBENRAUCH , D SUMMERS , K SUMOROK , F SZONCSO , C TAO , A TAUROK , I TENHAVE , S TETHER , G THOMPSON , E TSCHESLOG , J TUOMINIEMI , W VANDEGUCHTE , A VANDIJK , B VANEIJK , JP VIALLE , L VILLASENOR , TS VIRDEE , W VONSCHLIPPE , J VRANA , V VUILLEMIN , K WACKER , G WALZEL , A WILDISH , I WINGERTER , SJ WIMPENNY , X WU , CE WULZ , T WYATT , M YVERT , C ZACCARDELLI , I ZACHAROV , N ZAGANIDIS , L ZANELLO , P ZOTTO Physics letters B（1988）
摘要
Two-jet mass distributions have been measured as a function of centre-of-mass scattering angle for high-mass jet pairs produced in proton-antiproton collisions at the CERN collider operating at a centre-of-mass energy of 630 GeV. The agreement between QCD expectations and the experimental measurements has been used to place limits on the production cross section of an object X decaying into two jets. In particular we consider the existence of a massive colour octet of vector gauge bosons (axigluons). We exclude axigluons with a width ΛA < 0.4mA and a mass mA in the range 150 < mA < 310 GeV/c2 (95% CL).
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