Study of the four-jet anomaly observed at LEP centre-of-mass energies of 130 and 136 GeV

ABREU P;ADAM W;ADYE T;ADZIC P;AJINENKO I;ALBRECHT Z;ALDERWEIRELD T;ALEKSEEV GD;ALEMANY R;ALLMENDINGER T;ALLPORT PP;ALMEHED S;AMALDI U;AMATO S;ANASSONTZIS EG;ANDERSSON P;ANDREAZZA A;ANDRINGA S;ANTILOGUS P;APEL WD;ARNOUD Y;AMAN B;AUGUSTIN JE;AUGUSTINUS A;BAILLON P;BAMBADE P;BARAO F;BARBIELLINI G;BARBIER R;BARDIN DY;BARKER G;BARONCELLI A;BATTAGLIA M;BAUBILLIER M;BECKS KH;BEGALLI M;BEILLIERE P;BELOKOPYTOV Y;BENVENUTI AC;BERAT C;BERGGREN M;BERTINI D;BERTRAND D;BESANCON M;BIANCHI F;BIGI M;BILENKY MS;BIZOUARD MA;BLOCH D;BLOOM HM;BONESINI M;BONIVENTO W;BOONEKAMP M;BOOTH PSL;BORGLAND AW;BORISOV G;BOSIO C;BOTNER O;BOUDINOV E;BOUQUET B;BOURDARIOS C;BOWCOCK TJV;BOYKO I;BOZOVIC I;BOZZO M;BRANCHINI P;BRENKE T;BRENNER RA;BRUCKMAN P;BRUNET JM;BUGGE L;BURAN T;BURGSMUELLER T;BUSCHMANN P;CABRERA S;CACCIA, MASSIMO;CALVI M;ROZAS AJC;CAMPORESI T;CANALE V;CARENA F;CARROLL L;CASO C;GIMENEZ MVC;CATTAI A;CAVALLO FR;CHABAUD V;CHARPENTIER P;CHAUSSARD L;CHECCHIA P;CHELKOV GA;CHIERICI R;CHLIAPNIKOV P;CHOCHULA P;CHOROWICZ V;CHUDOBA J;COLLINS P;CONTRI R;CORTINA E;COSME G;COSSUTTI F;COWELL JH;CRAWLEY HB;CRENNELL D;CREPE S;CROSETTI G;MAESTRO JC;CZELLAR S;DAMGAARD G;DAVENPORT M;DA SILVA W;DEGHORAIN A;DELLA RICCA G;DELPIERRE P;DEMARIA N;DE ANGELIS A;DE BOER W;DE BRABANDERE S;DE CLERCQ C;DE LOTTO B;DE MIN A;DE PAULA L;DIJKSTRA H;DI CIACCIO L;DOLBEAU J;DOROBA K;DRACOS M;DREES J;DRIS M;DUPERRIN A;DURAND JD;EIGEN G;EKELOF T;EKSPONG G;ELLERT M;ELSING M;ENGEL JP;ERZEN B;SANTO ME;FALK E;FANOURAKIS G;FASSOULIOTIS D;FAYOT J;FEINDT M;FERRARI P;FERRER A;FERRER RIBAS E;FICHET S;FIRESTONE A;FLAGMEYER U;FOETH H;FOKITIS E;FONTANELLI F;FRANEK B;FRODESEN AG;FRUHWIRTH R;FULDA QUENZER F;FUSTER J;GALLONI A;GAMBA D;GAMBLIN S;GANDELMAN M;GARCIA C;GARCIA J;GASPAR C;GASPAR M;GASPARINI U;GAVILLET P;GAZIS EN;GELE D;GERDYUKOV L;GHODBANE N;GIL I;GLEGE F;GOKIELI R;GOLOB B;GOMEZ CEBALLOS G;GONCALVES P;CABALLERO IG;GOPAL G;GORN L;GORSKI V;GOUZ Y;GRACCO V;GRAHL J;GRAZIANI E;GREEN C;GRIMM HJ;GRIS P;GROSDIDIER G;GRZELAK K;GUNTHER M;GUY J;HAHN F;HAHN S;HAIDER S;HALLGREN A;HAMACHER K;HANSEN J;HARRIS FJ;HEDBERG V;HEISING S;HERNANDEZ JJ;HERQUET P;HERR H;HESSING TL;HEUSER JM;HIGON E;HOLMGREN SO;HOLT PJ;HOORELBEKE S;HOULDEN M;HRUBEC J;HUET K;HUGHES GJ;HULTQVIST K;JACKSON JN;JACOBSSON R;JALOCHA P;JANIK R;JARLSKOG C;JARLSKOG G;JARRY P;JEAN MARIE B;JOHANSSON EK;JONSSON P;JORAM C;JUILLOT P;KAPUSTA F;KARAFASOULIS K;KATSANEVAS S;KATSOUFIS EC;KERANEN R;KERSEVAN BP;KHOMENKO BA;KHOVANSKI NN;KIISKINEN A;KING B;KINVIG A;KJAER NJ;KLAPP O;KLEIN H;KLUIT P;KOKKINIAS P;KORATZINOS M;KOSTIOUKHINE V;KOUZNETSOV O;KRAMMER M;KRIZNIC E;KRSTIC P;KRUMSTEIN Z;KUBINEC P;KUCEWICZ W;KUROWSKA J;KURVINEN K;LAMSA JW;LANE DW;LANGEFELD P;LAPIN V;LAUGIER JP;LAUHAKANGAS R;LEDER G;LEDROIT F;LEFEBURE V;LEINONEN L;LEISOS A;LEITNER R;LEMONNE J;LENZEN G;LEPELTIER V;LESIAK T;LETHUILLIER M;LIBBY J;LIKO D;LIPNIACKA A;LIPPI I;LOERSTAD B;LOKEN JG;LOPES JH;LOPEZ JM;LOPEZ FERNANDEZ R;LOUKAS D;LUTZ P;LYONS L;MACNAUGHTON J;MAHON JR;MAIO A;MALEK A;MALMGREN TGM;MALYCHEV V;MANDL F;MARCO J;MARCO R;MARECHAL B;MARGONI M;MARIN JC;MARIOTTI C;MARKOU A;MARTINEZ RIVERO C;MARTINEZ VIDAL F;GARCIA SHI;MASIK J;MASTROYIANNOPOULOS N;MATORRAS F;MATTEUZZI C;MATTHIAE G;MAZZUCATO F;MAZZUCATO M;MC CUBBIN M;MC KAY R;MC NULTY R;MC PHERSON G;MERONI C;MEYER WT;MIAGKOV A;MIGLIORE E;MIRABITO L;MITAROFF WA;MJOERNMARK U;MOA T;MOCH MC;MOELLER R;MOENIG K;MONGE MR;MOREAU X;MORETTINI PM;MORTON G;MUELLER U;MUENICH K;MULDERS M;MULET MARQUIS C;MURESAN R;MURRAY WJ;MURYN B;MYATT G;MYKLEBUST T;NARAGHI F;NAVARRIA FL;NAVAS S;NAWROCKI K;NEGRI P;NEMECEK S;NEUFELD N;NEUMEISTER N;NICOLAIDOU R;NIELSEN BS;NIKOLENKO M;NOMOKONOV V;NORMAND A;NYGREN A;OBRAZTSOV V;OLSHEVSKI AG;ONOFRE A;ORAVA R;ORAZI G;OSTERBERG K;OURAOU A;PAGANONI M;PAIANO S;PAIN R;PAIVA R;PALACIOS J;PALKA H;PAPADOPOULOU TD;PAPAGEORGIOU K;PAPE L;PARKES C;PARODI F;PARZEFALL U;PASSERI A;PASSON O;PEGORARO M;PERALTA L;PERNICKA M;PERROTTA A;PETRIDOU C;PETROLINI A;PHILLIPS HT;PIERRE F;PIMENTA M;PIOTTO E;PODOBNIK T;POL ME;POLOK G;POROPAT P;POZDNIAKOV V;PRIVITERA P;PUKHAEVA N;PULLIA A;RADOJICIC D;RAGAZZI S;RAHMANI H;RAKOCZY D;RATOFF PN;READ AL;REBECCHI P;REDAELLI NG;REGLER H;REID D;REINHARDT R;BENTON PB;RESVANIS LK;RICHARD F;RIDKY J;RINAUDO G;ROHNE O;ROMERO A;RONCHESE P;ROSENBERG EI;ROSINSKY P;ROUDEAU P;ROVELLI T;ROYON C;RUHLMANN KLEIDER V;RUIZ A;SAARIKKO H;SACQUIN Y;SADOVSKY A;SAJOT G;SALT J;SAMPSONIDIS D;SANNINO M;SCHNEIDER H;SCHWEMLING P;SCHWICKERATH U;SCHYNS MAE;SCURI F;SEAGER P;SEDYKH Y;SEGAR AM;SEKULIN R;SHELLARD RC;SHERIDAN A;SIEBEL M;SIMARD L;SIMONETTO F;SISAKIAN AN;SMADJA G;SMIRNOVA O;SMITH GR;SOLOLOV A;SOLOVIANOV O;SOPCZAK A;SOSNOWSKI R;SPASSOV T;SPIRITI E;SPONHOLZ P;SQUARCIA S;STANESCU C;STANIC S;STEVENSON K;STOCCHI A;STRAUSS J;STRUB R;STUGU B;SZCZEKOWSKI M;SZEPTYCKA M;TABARELLI T;TEGENFELDT F;TERRANOVA F;THOMAS J;TIMMERMANS J;TINTI N;TKATCHEV LG;TODOROVA S;TOMARADZE A;TOME B;TONAZZO A;TORTORA L;TRANSTROMER G;TREILLE D;TRISTRAM G;TROCHIMCZUK M;TRONCON C;TSIROU A;TURLUER ML;TYAPKIN IA;TZAMARIAS S;UEBERSCHAER B;ULLALAND O;UVAROV V;VALENTI G;VALLAZZA E;VAN APELDOORN GW;VAN DAM P;VAN ELDIK J;VAN LYSEBETTEN A;VAN VULPEN I;VASSILOPOULOS N;VEGNI G;VENTURA L;VENUS W;VERBEURE F;VERLATO M;VERTOGRADOV LS;VERZI V;VILANOVA D;VITALE L;VLASOV E;VODOPYANOV AS;VOLLMER C;VOULGARIS G;VRBA V;WAHLEN H;WALCK C;WEISER C;WICKE D;WICKENS JH;WILKINSON GR;WINTER M;WITEK M;WOLF G;YI J;YUSHCHENKO O;ZALEWSKA A;ZALEWSKI P;ZAVRTANIK D;ZEVGOLATAKOS E;ZIMIN NI;ZUCCHELLI GC;ZUMERLE G.

1999