TESTS OF THE STANDARD MODEL AND CONSTRAINTS ON NEW PHYSICS FROM MEASUREMENTS OF FERMION-PAIR PRODUCTION AT 130-172GEV AT LEP

Authors
ACKERSTAFF K ALEXANDER G ALLISON J ALTEKAMP N ANDERSON KJ ANDERSON S ARCELLI S ASAI S AXEN D AZUELOS G BALL AH BARBERIO E BARLOW RJ BARTOLDUS R BATLEY JR BAUMANN S BECHTLUFT J BEESTON C BEHNKE T BELL AN BELLA G BENTVELSEN S BETHKE S BIEBEL O BIGUZZI A BIRD SD BLOBEL V BLOODWORTH IJ BLOOMER JE BOBINSKI M BOCK P BONACORSI D BOUTEMEUR M BOUWENS BT BRAIBANT S BRIGLIADORI L BROWN RM BURCKHART HJ BURGARD C BURGIN R CAPILUPPI P CARNEGIE RK CARTER AA CARTER JR CHANG CY CHARLTON DG CHRISMAN D CLARKE PEL COHEN I CONBOY JE COOKE OC CUFFIANI M DADO S DALLAPICCOLA C DALLAVALLE GM DAVIS R DEJONG S DELPOZO LA DESCH K DIENES B DIXIT MS SILVA EDE DOUCET M DUCHOVNI E DUCKECK G DUERDOTH IP EATOUGH D EDWARDS JEG ESTABROOKS PG EVANS HG EVANS M FABBRI F FANTI M FAUST AA FIEDLER F FIERRO M FISCHER HM FLECK I FOLMAN R FONG DG FOUCHER M FURTJES A FUTYAN DI GAGNON P GARY JW GASCON J GASCONSHOTKIN SM GEDDES NI GEICHGIMBEL C GERALIS T GIACOMELLI G GIACOMELLI P GIACOMELLI R GIBSON V GIBSON WR GINGRICH DM GLENZINSKI D GOLDBERG J GOODRICK MJ GORN W GRANDI C GROSS E GRUNHAUS J GRUWE M HAJDU C HANSON GG HANSROUL M HAPKE M HARGROVE CK HART PA HARTMANN C HAUSCHILD M HAWKES CM HAWKINGS R HEMINGWAY RJ HERNDON M HERTEN G HEUER RD HILDRETH MD HILL JC HILLIER SJ HOBSON PR HOMER RJ HONMA AK HORVATH D HOSSAIN KR HOWARD R HUNTEMEYER P HUTCHCROFT DE IGOKEMENES P IMRIE DC INGRAM MR ISHII K JAWAHERY A JEFFREYS PW JEREMIE H JIMACK M JOLY A JONES CR JONES G JONES M JOST U JOVANOVIC P JUNK TR KARLEN D KARTVELISHVILI V KAWAGOE K KAWAMOTO T KAYAL PI KEELER RK KELLOGG RG KENNEDY BW KIRK J KLIER A KLUTH S KOBAYASHI T KOBEL M KOETKE DS KOKOTT TP KOLREP M KOMAMIYA S KRESS T KRIEGER P VONKROGH J KYBERD P LAFFERTY GD LAHMANN R LAI WP LANSKE D LAUBER J LAUTENSCHLAGER SR LAYTER JG LAZIC D LEE AM LEFEBVRE E LELLOUCH D LETTS J LEVINSON L LLOYD SL LOEBINGER FK LONG GD LOSTY MJ LUDWIG J MACCHIOLO A MACPHERSON A MANNELLI M MARCELLINI S MARKUS C MARTIN AJ MARTIN JP MARTINEZ G MASHIMO T MATTIG P MCDONALD WJ MCKENNA J MCKIGNEY EA MCMAHON TJ MCPHERSON RA MEIJERS F MENKE S MERRITT FS MES H MEYER J MICHELINI A MIKENBERG G MILLER DJ MINCER A MIR R MOHR W MONTANARI A MORI T MORII M MULLER U MIHARA S NAGAI K NAKAMURA I NEAL HA NELLEN B NISIUS R ONEALE SW OAKHAM FG ODORICI F OGREN HO OH A OLDERSHAW NJ OREGLIA MJ ORITO S PALINKAS J PASZTOR G PATER JR PATRICK GN PATT J PEARCE MJ PEREZOCHOA R PETZOLD S PFEIFENSCHNEIDER P PILCHER JE PINFOLD J PLANE DE POFFENBERGER P POLI B POSTHAUS A REES DL RIGBY D ROBERTSON S ROBINS SA RODNING N RONEY JM ROOKE A ROS E ROSSI AM ROUTENBURG P ROZEN Y RUNGE K RUNOLFSSON O RUPPEL U RUST DR RYLKO R SACHS K SAEKI T SARKISYAN EKG SBARRA C SCHAILE AD SCHAILE O SCHARF F SCHARFFHANSEN P SCHENK P SCHIECK J SCHLEPER P SCHMITT B SCHMITT S SCHONING A SCHRODER M SCHULTZCOULON HC SCHUMACHER M SCHWICK C SCOTT WG SHEARS TG SHEN BC SHEPHERDTHEMISTOCLEOUS CH SHERWOOD P SIROLI GP SITTLER A SKILLMAN A SKUJA A SMITH AM SNOW GA SOBIE R SOLDNERREMBOLD S SPRINGER RW SPROSTON M STEPHENS K STEUERER J STOCKHAUSEN B STOLL K STROM D SZYMANSKI P TAFIROUT R TALBOT SD TANAKA S TARAS P TAREM S TEUSCHER R THIERGEN M THOMSON MA VONTORNE E TOWERS S TRIGGER I TROCSANYI Z TSUR E TURCOT AS TURNERWATSON MF UTZAT P VANKOOTEN R VERZOCCHI M VIKAS P VOKURKA EH VOSS H WACKERLE F WAGNER A WARD CP WARD DR WATKINS PM WATSON AT WATSON NK WELLS PS WERMES N WHITE JS WILKENS B WILSON GW WILSON JA WOLF G WYATT TR YAMASHITA S YEKUTIELI G ZACEK V ZERZION D
Citation
K. Ackerstaff et al., TESTS OF THE STANDARD MODEL AND CONSTRAINTS ON NEW PHYSICS FROM MEASUREMENTS OF FERMION-PAIR PRODUCTION AT 130-172GEV AT LEP, EUROPEAN PHYSICAL JOURNAL C-PARTICLES AND FIELDS, 2(3), 1998, pp. 441-472
Citations number
118
Categorie Soggetti
Physics, Particles & Fields
Journal title
EUROPEAN PHYSICAL JOURNAL C-PARTICLES AND FIELDS → ACNP
ISSN journal
14346044
Volume
2
Issue
3
Year of publication
1998
Pages
441 - 472
Database
ISI
SICI code
1434-6044(1998)2:3<441:TOTSMA>2.0.ZU;2-N
Abstract
Production of events with hadronic and leptonic final states has been measured in e(+)e(-) collisions at centre-of-mass energies of 130-172 GeV, using the OPAL detector at LEP. Cross-sections and leptonic forwa rd-backward asymmetries are presented, both including and excluding th e dominant production of radiative Z gamma events, and compared to Sta ndard Model expectations. The ratio R-b of the cross-section for <b(b) over bar> production to the hadronic cross-section has been measured. In a model-independent fit to the Z lineshape, the data have been used to obtain an improved precision on the measurement of gamma-Z interfe rence. The energy dependence of alpha(em) has been investigated. The m easurements have also been used to obtain limits on extensions of the Standard Model described by effective four-fermion contact interaction s, to search for t-channel contributions from new massive particles an d to place limits on gaugino pair production with subsequent decay of the gaugino into a light gluino and a quark pair.