SEARCH FOR PAIR PRODUCTION OF HEAVY OBJECTS IN 4-JET EVENTS AT ROOT-S=130-136 GEV

Authors
ADAM W ADYE T AGASI E AJINENKO I ALEKSEEV GD ALEMANY R ALLPORT PP ALMEHED S AMALDI U AMATO S ANDREAZZA A ANDRIEUX ML ANTILOGUS P APEL WD ASMAN B AUGUSTIN JE AUGUSTINUS A BAILLON P BAMBADE P BARAO F BARATE R BARBI M BARBIELLINI G BARDIN DY BARONCELLI A BARING O BARRIO JA BARTL W BATES MJ BATTAGLIA M BAUBILLIER M BAUDOT J BECKS KH BEGALLI M BEILLIERE P BELOKOPYTOV Y BELOUS K BENVENUTI AC BERGGREN M BERTINI D BERTRAND D BESANCON M BIANCHI F BIGI M BILENKY MS BILLOIR P BLOCH D BLUME M BOLOGNESE T BONESINI M BONIVENTO W BOOTH PSL BORISOV G BOSIO C BOTNER O BOUDINOV E BOUQUET B BOURDARIOS C BOWCOCK TJV BOZZO M BRANCHINI P BRAND KD BRENKE T BRENNER RA BRICMAN C BROWN RCA BRUCKMAN P BRUNET JM BUGGE L BURAN T BURGSMUELLER T BUSCHMANN P BUYS A CABRERA S CACCIA M CALVI M ROZAS AJC CAMPORESI T CANALE V CANEPA M CANKOCAK K CAO F CARENA F CARROLL L CASO C GIMENEZ MVC CATTAI A CAVALLO FR CHABAUD V CHARPENTIER P CHAUSSARD L CHECCHIA P CHELKOV GA CHEN M CHIERICI R CHLIAPNIKOV P CHOCHULA P CHOROWICZ V CHUDOBA J CINDRO V COLLINS P CONTRERAS JL CONTRI R CORTINA E COSME G COSSUTTI F COWELL JH CRAWLEY HB CRENNELL D CROSETTI G MAESTRO JC CZELLAR S DAHLJENSEN E DAHM J DALMAGNE B DAM M DAMGAARD G DAUNCEY PD DAVENPORT M DASILVA W DEFOIX C DEGHORAIN A DELLARICCA G DELPIERRE P DEMARIA N DEANGELIS A DEBOER W DEBRABANDERE S DECLERCQ C DELAVAISSIERE C DELOTTO B DEMIN A DEPAULA L DESAINTJEAN C DIJKSTRA H DICIACCIO L DIDIODATO A DJAMA F DOLBEAU J DONSZELMANN M DOROBA K DRACOS M DREES J DREES KA DRIS M DURAND JD EDSALL D EHRET R EIGEN G EKELOF T EKSPONG G ELSING M ENGEL JP ERZEN B SANTO ME FALK E FASSOULIOTIS D FEINDT M FERRER A FICHET S FILIPPAS TA FIRESTONE A FISCHER PA FOETH H FOKITIS E FONTANELLI F FORMENTI F FRANEK B FRENKIEL P FRIES DC FRODESEN AG FULDAQUENZER F FUSTER J GALLONI A GAMBA D GANDELMAN M GARCIA C GARCIA J GASPAR C GASPARINI U GAVILLET P GAZIS EN GELE D GERBER JP GOKIELI R GOLOB B GOPAL G GORN L GORSKI M GOUZ Y GRACCO V GRAZIANI E GREEN C GREFRATH A GRIS P GROSDIDIER G GRZELAK K GUMENYUK S GUNNARSSON P GUNTHER M GUY J HAHN F HAHN S HAJDUK Z HALLGREN A HAMACHER K HAO W HARRIS FJ HEDBERG V HENRIQUES R HERNANDEZ JJ HERQUET P HERR H HESSING TL HIGON E HILKE HJ HILL TS HOLMGREN SO HOLT PJ HOLTHUIZEN D HOORELBEKE S HOULDEN M HRUBEC J HUET K HULTQVIST K JACKSON JN JACOBSSON R JALOCHA P JANIK R JARLSKOG C JARLSKOG G JARRY P JEANMARIE B JOHNSSON EK JONSSON L JONSSON P JORAM C JUILLOT P KAISER M KAPUSTA F KARAFASOULIS K KARLSSON M KARVELAS E KATSANEVAS S KATSOUFIS EC KERANEN R KHOKHLOV Y KHOMENKO BA KHOVANSKI NN KING B KJAER NJ KLAPP O KLEIN H KLOVNING A KLUIT P KOENE B KOKKINIAS P KORATZINOS M KORCYL K KOSTIOUKHINE V KOURKOUMELIS C KOUZNETSOV O KRAMMER M KREUTER C KRONKVIST I KRUMSTEIN Z KRUPINSKI W KUBINEC P KUCEWICZ W KURVINEN K LACASTA C LAKTINEH I LAMSA JW LANCERI L LANE DW LANGEFELD P LAPIN V LAUGIER JP LAUHAKANGAS R LEDER G LEDROIT F LEFEBURE V LEGAN CK LEITNER R LEMONNE J LENZEN G LEPELTIER V LESIAK T LIBBY J LIKO D LINDNER R LIPNIACKA A LIPPI I LOERSTAD B LOKEN JG LOPEZ JM LOUKAS D LUTZ P LYONS L MACNAUGHTON J MAEHLUM G MAHON JR MAIO A MALMGREN TGM MALYCHEV V MANDI F MARCO R MARECHAL B MARGONI M MARIN JC MARIOTTI C MARKOU A MARTINEZRIVERO C MARTINEZVIDAL F GARCIA SMI MASIK J MATORRAS F MATTEUZZI C MATTHIAE G MAZZUCATO M MCCUBBIN M MCKAY R NULTY RM MEDBO J MERK M MERONI C MEYER S MEYER WT MIAGKOV A MICHELOTTO M MIGLIORE E MIRABITO L MITAROFF WA MJOERNMARK U MOA T MOELLER R MOENIG K MONGE MR MORETTINI P MUELLER H MUENICH K MUNDIM LM MURRAY WJ MURYN B MYATT G NARAGHI F NAVARRIA FL NAVAS S NAWROCKI K NEGRI P NEMECEK S NEUMANN W NEUMEISTER N NICOLAIDOU R NIELSEN BS NIEWENHUIZEN M NIKOLAENKO V NISS P NOMEROTSKI A NORMAND A OBERSCHULTEBECKMANN W OBRAZTSOV V OLSHEVSKI AG ONOFRE A ORAVA R OSTERBERG K OURAOU A PAGANINI P PAGANONI M PAGES P PAIN R PALKA H PAPADOPOULOU TD PAPAGEORGIOU K PAPE L PARKES C PARODI F PASSERI A PEGORARO M PERALTA L PERNEGGER H PERNICKA M PERROTTA A PETRIDOU C PETROLINI A PETROVYCK M PHILLIPS HT PIANA G PIERRE F PIMENTA M PLASZCZYNSKI S PODOBRIN O POL ME POLOK G POROPAT P POZDNIAKOV V PRIVITERA P PUKHAEVA N PULLIA A RADOJICIC D RAGAZZI S RAHMANI H RATOFF PN READ AL REALE M REBECCHI P REDAELLI NG REGLER M REID D RENTON PB RESVANIS LK RICHARD F RICHARDSON J RIDKY J RINAUDO G RIPP I ROMERO A RONCAGLIOLO I RONCHESE P ROOS L ROSENBERG EJ ROSSO E ROUDEAU P ROVELLI T RUCKSTUHL W RUHLMANNKLEIDER V RUIZ A RYBICKI K SAARIKKO H SACQUIN Y SADOVSKY A SAHR O SAJOT G SALT J SANCHEZ J SANNINO M SCHIMMELPFENNIG M SCHNEIDER H SCHWICKERATH U SCHYNS MAE SCIOLLA G SCURI F SEAGER P SEDYKH Y SEGAR AM SEITZ A SEKULIN R SERBELLONI L SHELLARD RC SICCAMA I SIEGRIST P SILVESTRO R SIMONETTI S SIMONETTO F SISAKIAN AN SITAR B SKAALI TB SMADJA G SMIRNOV N SMIRNOVA O SMITH GR SOKOLOV A SOSNOWSKI R SOUZASANTOS D SPASSOV T SPIRITI E SPONHOLZ P SQUARCIA S STANESCU C STAPNES S STAVITSKI I STEVENSON K STICHELBAUT F STOCCHI A STRAUSS J STRUB R STUGU B SZCZEKOWSKI M SZEPTYCKA M TABARELLI T TAVERNET JP TCHIKILEV O THOMAS J TILQUIN A TIMMERMANS J TKATCHEV LG TODOROV T TODOROVA S TOET DZ TOMARADZE A TOME B TONAZZO A TORTORA L TRANSTROMER G TREILLE D TRISCHUK W TRISTRAM G TROMBINI A TRONCON C TSIROU A
Citation
W. Adam et al., SEARCH FOR PAIR PRODUCTION OF HEAVY OBJECTS IN 4-JET EVENTS AT ROOT-S=130-136 GEV, Zeitschrift fur Physik. C, Particles and fields, 73(1), 1996, pp. 1-9
Citations number
20
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
73
Issue
1
Year of publication
1996
Pages
1 - 9
Database
ISI
SICI code
0170-9739(1996)73:1<1:SFPPOH>2.0.ZU;2-7
Abstract
Results are presented of a search for pair production of heavy objects decaying into four hadronic jets, as expected for example from associ ated or pair production of MSSM Higgs bosons, hA or H+H-, using a data sample of 5.9 pb(-1) of e(+)e(-) collisions at root s = 130-136 GeV c ollected with the DELPHI detector at LEP in November 1995. The data an d expectations from standard processes agree after four-jet selections . An analysis based on b-tagging finds no hA candidate with high mass. A study optimized to search for H+H- events with mass in the 40-50 Ge V/c(2) range also finds no candidate, Finally a comparison is made wit h a recent ALEPH analysis which found an excess of four-jet events wit h high multiplicity and high mass. Such a signal is not observed in th e DELPHI data, although a slight excess in the mass region around 105 GeV/c(2) is seen.