A STUDY OF THE REACTION E(-)-]MU(+)MU(-)GAMMA(ISR) AT LEP AND SEARCH FOR NEW PHYSICS AT ANNIHILATION ENERGIES NEAR 80 GEV()E()

Authors
ABREU P ADAM W ADYE T AJINENKO I ALEKSEEV GD ALEMANY R ALLPORT PP ALMEHED S AMALDI U AMATO S ANDERSSON P ANDREAZZA A ANTILOGUS P APEL WD ASMAN B AUGUSTIN JE AUGUSTINUS A BAILLON P BAMBADE P BARAO F BARBI M BARBIELLINI G BARDIN DY BARKER G BARONCELLI A BARRING O 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 BIZOUARD MA BLOCH D BLUME M BONESINI M BONIVENTO W BOOTH PSL BORGLAND AW BORISOV G BOSIO C BOTNER O BOUDINOV E BOUQUET B BOURDARIOS C BOWCOCK TJV BOZOVIC I 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 CABRERA S CACCIA M CALVI M ROZAS AJC CAMPORESI T CANALE V CANEPA M 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 CONTRI R CORTINA E COSME G COSSUTTI F COWELL JH CRAWLEY HB CRENNELL D CROSETTI G MAESTRO JC CZELLAR S DAHM J DALMAGNE B DAM M DAMGAARD G DAUNCEY PD DAVENPORT M DASILVA W DEGHORAIN A DELLARICCA G DELPIERRE P DEMARIA N DEANGELIS A DEBOER W DEBRABANDERE S DECLERCQ C DELAVAISSIERE C DELOTTO B DEMIN A DEPAULA L DIJKSTRA K DICIACCIO L DIDIODATO A DJANNATI A DOLBEAU J 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 FANOURAKIS G FASSOULIOTIS D FEINDT M FENYUK A FERRARI P FERRER A FICHET S FILIPPAS TA FIRESTONE A FISCHER PA FOETH H FOKITIS E FONTANELLI F FORMENTI F FRANEK B FRODESEN AG FRUHWIRTH R FULDAQUENZER F FUSTER J GALLONI A GAMBA D GANDELMAN M GANDELMAN M GARCIA C GARCIA J GASPAR D GASPARINI U GAVILLET P GAZIS EN GELE D GERBER JP GERDYUKOV L GOKIELI R GOLOB B GONCALVES P GOPAL G GORN L GORSKI M GOUZ Y GRACCO V GRAZIANI E GREEN C GREFRATH A GRIS P GROSDIDIER G GRZELAK K GUMENYUK S GUNTHER M GUY J HAHN F HAHN S HAJDUK Z HALLGREN A HAMACHER K HARRIS FJ HEDBERG V HERNANDEZ JJ HERQUET P HERR H HESSING TL HEUSER JM HIGON E HILKE HJ 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 JOHANSSON EK JONSSON L JONSSON P JORAM C JUILLOT P KAISER M KAPUSTA F KARAFASOULIS K KARLSSON M KATSANEVAS S KATSOUFIS EC KERANEN R KHOKHLOV Y KHOMENKO BA KHOVANSKI NN KING B KJAER NJ KLAPP O KLEIN H KLUIT P KNOBLAUCH D KOKKINIAS P KORATZINOS M KORCYL K KOSTIOUKHINE V KOURKOUMELIS C KOUZNETSOV O KRAMMER M KREUTER C KRONKVIST L KRUMSTEIN Z KRUPINSKI W KUBINEC P KUCEWICZ W KURVINEN K LACASTA C LAKTINEH I LAMSA JW LANCERI L LANE DW LANGEFELD P LAUGIER JP LAUHAKANGAS R LEDER G LEDROIT F LEFEBURE V LEGAN CK LEISOS A LEITNER R LEMONNE J LENZEN G LEPELTIER V LESIAK T LIBBY J LIKO D LIPNIACKA A LIPPI I LOERSTAD B LOKEN JG LOPEZ JM LOUKAS D LUTZ P LYONS L MAEHLUM G MAHON JR MAIO A MALMGREN TGM MALYCHEV V MANDL F MARCO J 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 MCNULTY R MEDBO J MERONI C MEYER S MEYER WT MICHELOTTO M MIGLIORE E MIRABITO L MITAROFF WA MJOERNMARK U MOA T MOELLER R MOENIG K MONGE MR MORETTINI P MUELLER H MUENICH K MULDERS M MUNDIM LM MURRAY WJ MURYN B MYATT G MYKLEBUST T NARAGHI F NAVARRIA FL NAVAS S NAWROCKI K NEGRI P NEMECEK S NEUMANN W NEUMEISTER N NICOLAIDOU R NIELSEN BS NIEUWENHUIZEN M NIKOLAENKO V NIKOLENKO M NISS P NOMEROTSKI A NORMAND A OBERSCHULTEBECKMANN W OBRAZTSOV V OLSHEVSKI AG ONOFRE A ORAVA R ORAZI G OSTERBERG K OURAOU A PAGANINI P PAGANONI M 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 PHILLIPS HT PIANA D PIERRE F PIMENTA M PODOBNIK T PODOBRIN O POL ME POLOK G POROPAT P POZDNIAKOV V PRIVITERA P PUKHAEVA N PULLIA A REGLER M RADOJICIC D RAGAZZI S RAHMANI H RATOFF PN READ AL REALE M REBECCHI P REDAELLI NG REID D REINHARDT R RENTON PB RESVANIS LK RICHARD F RICHARDSON J RIDKY J RINAUDO G ROHNE O ROMERO A RONCHESE P ROOS L ROSENBERG EI ROUDEAU P ROVELLI T RUHLMANNKLEIDER V RUIZ A RYBICKI K SAARIKKO H SACQUIN Y SADOVSKY A SAHR O SAJOT G SALT J SANNINO 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 SIEGRIST P SILVESTRE R SIMONETTO F SISAKIAN AN SITAR B SKAALI TB SMADJA G SMIRNOV N SMIRNOVA O SMITH GR SOLOVIANOV O SOSNOWSKI R SOUZASANTOS D SPASSOV T SPIRITI E SPONHOLZ P SQUARCIA S STAMPFER D STANESCU C STANIC S STAPNES S STAVITSKI I STEVENSON K STOCCHI A STRAUSS J STRUB R STUGU B SZCZEKOWSKI M SZEPTYCKA M TABARELLI T TAVERNET JP TCHIKILEV O TEGENFELDT F TERRANOVA F 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 TRISTRAM G TROMBINI A TRONCON C TSIROU A TURLUER ML TYAPKIN IA TYNDEL M TZAMARIAS S UEBERSCHAER B ULLALAND O UVAROV V VALENTI G VALLAZZA E VANDERVELDE C VANAPELDOORN GW VANDAM P
Citation
P. Abreu et al., A STUDY OF THE REACTION E(-)-]MU(+)MU(-)GAMMA(ISR) AT LEP AND SEARCH FOR NEW PHYSICS AT ANNIHILATION ENERGIES NEAR 80 GEV()E(), Zeitschrift fur Physik. C, Particles and fields, 75(4), 1997, pp. 581-592
Citations number
30
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
75
Issue
4
Year of publication
1997
Pages
581 - 592
Database
ISI
SICI code
0170-9739(1997)75:4<581:ASOTRE>2.0.ZU;2-I
Abstract
A study of the channel e(+)e(-) --> mu(+)mu(-)gamma ISR, where gamma I SR is an initial state radiation photon, is presented using data colle cted by the DELPHI experiment from 1991 to 1994. The total cross-secti on at effective annihilation: energies (root s') below the Z(0) peak i s obtained by using the events with relatively hard initial state radi ative photon(s) (E gamma > 1 GeV). The differential cross-section as a function of the muon polar production angle is also determined in ord er eo extract the forward-backward asymmetries for the reaction e(+)e( -) --> mu(+)mu(-) at energies root s' between 20 and 87 GeV. The ratio of the helicity cross-sections sigma LL+sigma RR/sigma RL+sigma LR, w here the two subscripts stand for the helicities of the incoming e(-) and outgoing mu(-) respectively, is extracted from the differential cr oss-sections in order to test the Standard Model and to look for new p hysics near 80 GeV. No deviations from the Standard Model were found.