A STUDY OF RADIATIVE MUNON-PAIR EVENTS AT Z(0) ENERGIES AND LIMITS ONAN ADDITIONAL Z' GAUGE BOSON

Authors
ABREU P ADAM W ADYE T AGASI E AJINENKO L ALEKSAN R ALEKSEEV GD ALLPORT PP ALMEHED S ALMEIDA FML ALVSVAAG SJ AMALDI U ANDREAZZA A ANTILOGUS P APEL WD APSIMON RJ ARNOUD Y ASMAN B AUGUSTIN JE AUGUSTINUS A BAILLON P BAMBADE P BARAO F BARATE R BARDIN DY BARKER GJ BARONCELLI A BARRING O BARRIO JA BARTL W BATES MJ BATTAGLIA M BAUBILLIER M BAUDOT J BECKS KH BEGALLI M BEILLIERE P BELTRAN P BENVENUTI AC BERGGREN M BERTRAND D BIANCHI F BIGI M BILENKY MS BILLOIR P BJARNE J BLOCH D BLOCKI J BLYTH S BOCCI V BOGOLUBOV PN BOLOGNESE T BONESINI M BONIVENTO W BOOTH PSL BORISOV G BOSIO C BOSTJANCIC B BOSWORTH S BOTNER O BOUDINOV E BOUQUET B BOURDARIOS C BOWCOCK TJV BOZZO M BRAIBANT S BRANCHINI P BRAND KD BRENNER RA BRIAND H BRICMAN C BRILLAULT L BROWN RCA BRUNET JM BUGGE L BURAN T BUYS A BUYTAERT JAMA CACCIA M CALVI M ROZAS AJC CAMPION R CAMPORESI T CANALE V CANKOCAK K CAO F CARENA F CARRILHO P CARROLL L CASES R CASO C GIMENEZ MVC CATTAI A CAVALLO FR CERRITO L CHABAUD V CHAN A CHAPKIN M CHARPENTIER P CHAUSSARD L CHAUVEAU J CHECCHIA P CHELKOV GA CHLIAPNIKOV P CHOROWICZ V CHRIN JTM CINDRO V COLLINS P CONTRERAS JL CONTRI R CORTINA E COSME G COSMO G COSSUTTI C COUCHOT F CRAWLEY HB CRENNELL D CROSETTI G MAESTRO JC CZELLAR S DAHLJENSEN E DAHM J DALMAGNE B DAM M DAMGAARD G DAUBIE E DAUM A DAUNCEY PD DAVENPORT M DAVIES J DASILVA W DEFOIX C DELPIERRE P DEMARIA N DEANGELIS A DEBOECK H DEBOER W DEBRABANDERE S DECLERCQ C LASO MDMF DELAVAISSIERE C DELOTTO B DEMIN A DEPAULA L DESAINTJEAN C DIJKSTRA H DICIACCIO L DJAMA F DOLBEAU J DONSZELMANN M DOROBA K DRACOS M DRESS J DRIS M DUFOUR Y DUPONT F EDSALL D EHRET R EKELOF T EKSPONG G ELSING M ENGEL JP ERSHAIDAT N SANTO ME FASSOULIOTIS D FEINDT M FENYUK A FERRER A FILIPPAS TA FIRESTONE A FOETH H FOKITIS E FONTANELLI F FORMENTI F FOUSSET JL FRANEK B FRENKIEL P FRIES DC FRODESEN AG FRUHWIRTH R FULDAQUENZER F FURSTENAU H FUSTER J GAMBA D GANDELMAN M GARCIA C GARCIA J GASPAR C GASPARINI U GAVILLET P GAZIS EN GELE D GERBER JP GIACOMELLI P GILLESPIE D GOKIELI R GOLOB B GOLOVATYUK VM GOMEZ JJ CADENAS Y GOPAL G GORN L GORSKI M GRACCO V GRARD F GRAZIANI E GROSDIDIER G GUNNARSSON P GUY J HAEDINGER U HAHN F HAHN M HAHN S HAIDER S HAJDUK Z HAKANSSON A HALLGREN A HAMACHER K HAO W HARRIS FJ HEDBERG V HENRIQUES R HERMANDEZ JJ HERNANDO JA HERQUET P HERR H HESSING TL HIGON E HILKE HJ HILL TS HOLMGREN SO HOLT PJ HOLTHUIZEN D HONORE PF HOULDEN M HRUBEC J HUET K HULTQVIST K IOANOU P IVERSEN PS JACKSON JN JACOBSSON R JALOCHA P JARLSKOG G JARRY P JEANMARIE B JOHANSSON EK JONKER M JONSSON L JUILLOT P KAISER M KALMUS G KAPUSTA F KARLSSON M KARVELAS E KATSANEVAS S KATSOUFIS EC KERANEN R KHOMENKO BA KHOVANSKI NN KING B KJAER NJ KLEIN H KLOVNING A KLUIT P KOCHMEHRIN A KOEHNE JH KOENE B KOKKINIAS P KORATZINOS M KORCYL K KORYTOV AV KOSTIOUKHINE V KOURKOUMELIS C KOUZNETSOV O KRAMER PH KRAMMER M KREUTER C KROLIKOWSKI J KRONKVIST I KRUPINSKI W KULKA K KURVINEN K LACASTA C LAKTINEH I LAMBROPOULOS C LAMSA JW LANCERI L LANGEFELD P LAPIN V LAST I LAUGIER JP LAUHAKANGAS R LEDER G LEDROIT F LEITNER R LEMOIGNE Y LEMONNE J LENZEN G LEPELTIER V LESIAK T LEVY JM LIEB E LIKO D LINDNER R LIPNIACKA A LIPPI I LOERSTAD B LOKAJICEK M LOKEN JG LOPEZFERNANDEZ A LOPEZAGUERA MA LOS M LOUKAS D LOZANO JJ LUTZ P LYONS L MAEHLUM G MAILLARD J MAIO A MALTEZOS A MANDL F MARCO J MARECHAL B MARGONI M MARIN JC MARIOTTI C MARKOU A MARON T MARTI S MARTINEZRIVERO C MARTINEZVIDAL F MATORRAS F MATTEUZZI C MATTHIAE G MAZZUCATO M CUBBIN MM KAY RM NULTY RM MEDBO J MERONI C MEYER WT MICHELOTTO M MIGLIORE E MIKULEC I MIRABITO L MITAROFF WA MITSELMAKHER GV MJOERNMARK U MOA T MOELLER R MOENIG K MONGE MR MORETTINI P MUELLER H MURRAY WJ MURYN B MYATT G NARAGHI F NAVARRIA FL NEGRI P NEMECEK S NEUMANN W NICOLAIDOU R NIELSEN BS NISS P NOMEROTSKI A NORMAND A OBRAZTSOV V OLSHEVSKI AF ORAVA R OSTERBERG K OURAOU A PAGANINI P PAGANONI M PAIN R PALKA H PAPADOPOULOU TD PAPE L PARODI F PASSERI A PEGORARO M PENNANEN J PERALTA L PERNEGGER H PERNICKA M PERROTA A PETRIDOU C PETROLINI A PHILLIPS HT PIANA G PIERRE F PIMENTA M PLASZCZYNSKI S PODOBRIN O POL ME POLOK G POROPAT P POZDNIAKOV V PREST M PRIVITERA P PULLIA A RADOJICIC D RAGAZZI S RAHMANI H RAMES J 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 EI ROSSO E ROUDEAU P ROVELLI T RUCKSTUHL W RUHLMANNKLEIDER V RUIZ A RYBICKI K SAARIKKO H SACQUIN Y SAJOT G SALT J SANCHEZ J SANNINO M SCHAEL S SCHNEIDER H SCHYNS MAE SCIOLLA G SCURI F SEGAR AM SEITZ A SEKULIN R SEUFERT R SHELLARD RC SICCAMA I SIEGRIST P SIMONETTI S SIMONETTO F SISAKIAN AN SKAALI TB SMADJA G SMIRNOV N SMIRNOVA O SMITH GR SOSNOWSKI R SOUZASANTOS D SPASSOV T SPIRITI E SQUARCIA S STAECK H STANESCU C STAPNES S STAVITSKI I STAVROPOULOS G STEPANIAK K STICHELBAUT F STOCCHI A STRAUSS J STRAVER J STRUB R STUGU B SZCZEKOWSKI M SZEPTYCKA M TABARELLI T TCHIKILEV O THEODOSIOU GE THOME Z TILQUIN A TIMMERMANS J TIMOFEEV VG TKATCHEV LG TODOROV T TOET DZ TOMARADZE A TOME B TORASSA E TORTORA L TRANSTROMER G TREILLE D TRISCHUK W TRISTRAM G TRONCON C TSIROU A TSYGANOV EN TURALA M TURLUER ML
Citation
P. Abreu et al., A STUDY OF RADIATIVE MUNON-PAIR EVENTS AT Z(0) ENERGIES AND LIMITS ONAN ADDITIONAL Z' GAUGE BOSON, Zeitschrift fur Physik. C, Particles and fields, 65(4), 1995, pp. 603-618
Citations number
55
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
65
Issue
4
Year of publication
1995
Pages
603 - 618
Database
ISI
SICI code
0170-9739(1995)65:4<603:ASORME>2.0.ZU;2-M
Abstract
An analysis is reported on the channel e(+)e(-) --> mu(+)mu(-)(n gamma ), n=1,2.., using data taken with the DELPHI detector at LEP from 1990 to 1992. Differential cross sections of the radiative photons as a fu nction of photon energy and of the angle between the photon and the mu on are presented. No significant deviations from expectations are obse rved. The data are also used to extract the muon-pair cross section an d asymmetry below the Z(0) peak by using those events with relatively hard initial state radiative photon(s). The measured cross section and asymmetry show no significant deviation from the Standard Model expec tations. These results together with the DELPHI cross section and asym metry measurements at the LEP energies from the 1990 to 1992 running p eriods are used to determine limits on the Z(0)-Z' gauge boson mixing angle theta(Z') and on the Z' mass. There is no indication of the exis tence of a Z'; the limits obtained on the mixing angle substantially i mprove upon existing limits. The 95% confidence level allowed ranges o f theta(Z') in various models are: -0.0070 less than or equal to theta (Z') less than or equal to 0.0078, E(6)(chi) model, -0.0075 less than or equal to theta(Z') E(6)(psi) model, -0.029 less than or equal to th eta(Z') less than or equal to 0.029, E(6)(eta) model, -0.0068 less tha n or equal to theta(Z') less than or equal to 0.0082, L-R(1.) model, - 0.0057 less than or equal to theta(Z') less than or equal to 0.0077, L -R(root 2) model.