MEASUREMENT OF THE W-PAIR CROSS-SECTION IN E(-) COLLISIONS AT 172 GEV()E()

Authors
BARATE R BUSKULIC D DECAMP D GHEZ P GOY C LEES JP LUCOTTE A MINARD MN NIEF JY PIETRZYK B CASADO MP CHMEISSANI M COMAS P CRESPO JM DELFINO M FERNANDEZ E FERNANDEZBOSMAN M GARRIDO L JUSTE A MARTINEZ M MERINO G MIQUEL R MIR LM PADILLA C PARK IC PASCUAL A PERLAS JA RIU I SANCHEZ F TEUBERT F COLALEO A CREANZA D DEPALMA M GELAO G IASELLI G MAGGI G MAGGI M MARINELLI N NUZZO S RANIERI A RASO G RUGGIERI F SELVAGGI G SILVESTRIS L TEMPESTA P TRICOMI A ZITO G HUANG X LIN J OUYANG Q WANG T XIE Y XU R XUE S ZHANG J ZHANG L ZHAO W ABBANEO D ALEMANY R BAZARKO AO BECKER U BRIGHTTHOMAS P CATTANEO M CERUTTI F DISSERTORI G DREVERMANN H FORTY RW FRANK M HAGELBERG R HANSEN JB HARVEY J JANOT P JOST B KNERINGER E KNOBLOCH J LEHRAUS I MATO P MINTEN A MONETA L PACHECO A PUSZTASZERI JF RANJARD F RIZZO G ROLANDI L ROUSSEAU D SCHLATTER D SCHMITT M SCHNEIDER O TEJESSY W TOMALIN IR WACHSMUTH H WAGNER A AJALTOUNI Z BARRES A BOYER C FALVARD A FERDI C GAY P GUICHENEY C HENRARD P JOUSSET J MICHEL B MONTEIL S MONTRET JC PALLIN D PERRET P PODLYSKI F PRORIOL J ROSNET P ROSSIGNOL JM FEARNLEY T HANSEN JD HANSEN JR HANSEN PH NILSSON BS RENSCH B WAANANEN A DASKALAKIS G KYRIAKIS A MARKOU C SIMOPOULOU E VAYAKI A BLONDEL A BRIENT JC MACHEFERT F ROUGE A RUMPF M VALASSI A VIDEAU H FOCARDI E PARRINI G ZACHARIADOU K CAVANAUGH R CORDEN M GEORGIOPOULOS C HUEHN T JAFFE DE ANTONELLI A BENCIVENNI G BOLOGNA G BOSSI F CAMPANA P CAPON G CASPER D CHIARELLA V FELICI G LAURELLI P MANNOCCHI G MURTAS F MURTAS GP PASSALACQUA L PEPEALTARELLI M CURTIS L DORRIS SJ HALLEY AW KNOWLES IG LYNCH JG OSHEA V RAINE C SCARR JM SMITH K TEIXEIRADIAS P THOMPSON AS THOMSON E THOMSON F TURNBULL RM WARD J BUCHMULLER O DHAMOTHARAN S GEWENIGER C GRAEFE G HANKE P HANSPER G HEPP V KLUGE EE PUTZER A SOMMER J TITTEL K WERNER S WUNSCH M BEUSELINCK R BINNIE DM CAMERON W DORNAN PJ GIRONE M GOODSIR S MARTIN EB MORAWITZ P MOUTOUSSI A NASH J SEDGBEER JK SPAGNOLO P STACEY AM WILLIAMS MD GHETE VM GIRTLER P KUHN D RUDOLPH G BETTERIDGE AP BOWDERY CK COLRAIN P CRAWFORD G FINCH AJ FOSTER F HUGHES G JONES RWL SLOAN T WHELAN EP WILLIAMS MI HOFFMANN C JAKOBS K KLEINKNECHT K QUAST G RENK B ROHNE E SANDER HG VANGEMMEREN P ZEITNITZ C AUBERT JJ BENCHOUK C BONISSENT A BUJOSA G CARR J COYLE P DIACONU C EALET A FOUCHEZ D KONSTANTINIDIS N LEROY O MOTSCH F PAYRE P TALBY M SADOUKI A THULASIDAS M TILQUIN A TRABELSI K ALEPPO M ANTONELLI M RAGUSA F BERLICH R BLUM W BUSCHER V DIETL H GANIS G GOTZHEIN C KROHA H LUTJENS G LUTZ G MANNER W MOSER HG RICHTER R ROSADOSCHLOSSER A SCHAEL S SETTLES R SEYWERD H STDENIS R STENZEL H WIEDENMANN W WOLF G BOUCROT J CALLOT O CHEN S CORDIER A DAVIER M DUFLOT L GRIVAZ JF HEUSSE P HOCKER A JACHOLKOWSKA A JACQUET M KIM DW LEDIBERDER F LEFRANCOIS J LUTZ AM NIKOLIC I SCHUNE MH SERIN L SIMION S TOURNEFIER E VEILLET JJ VIDEAU I ZERWAS D AZZURRI P BAGLIESI G BETTARINI S BOZZI C CALDERINI G CIULLI V DELLORSO R FANTECHI R FERRANTE I GIASSI A GREGORIO A LIGABUE F LUSIANI A MARROCCHESI PS MESSINEO A PALLA F SANGUINETTI G SCIABA A SGUAZZONI G STEINBERGER J TENCHINI R VANNINI C VENTURI A VERDINI PG BLAIR GA BRYANT LM CHAMBERS JT GAO Y GREEN MG MEDCALF T PERRODO P STRONG JA VONWIMMERSPERGTOELLER JH BOTTERILL DR CLIFFT RW EDGECOCK TR HAYWOOD S MALEY P NORTON PR THOMPSON JC WRIGHT AE BLOCHDEVAUX B COLAS P FABBRO B KOZANECKI W LANCON E LEMAIRE MC LOCCI E PEREZ P RANDER J RENARDY JF ROSOWSKY A ROUSSARIE A SCHULLER JP SCHWINDLING J TRABELSI A VALLAGE B BLACK SN DANN JH KIM HY LITKE AM MCNEIL MA TAYLOR G BOOTH CN BOSWELL R BREW CAJ CARTWRIGHT S COMBLEY F KELLY MS LEHTO M NEWTON WM REEVE J THOMPSON LF AFFHOLDERBACH K BOHRER A BRANDT S COWAN G FOSS J GRUPEN C LUTTERS G SARAIVA P SMOLIK L STEPHAN F APOLLONIO M BOSISIO L DELLAMARINA R GIANNINI G GOBBO B MUSOLINO G PUTZ J ROTHBERG J WASSERBAECH S WILLIAMS RW ARMSTRONG SR CHARLES E ELMER P FERGUSON DPS GONZALEZ S GREENING TC HAYES OJ HU H JIN S MCNAMARA PA NACHTMAN JM NIELSEN J OREJUDOS W PAN YB SAADI Y SCOTT IJ WALSH J WU SL WU X YAMARTINO JM ZOBERNIG G
Citation
R. Barate et al., MEASUREMENT OF THE W-PAIR CROSS-SECTION IN E(-) COLLISIONS AT 172 GEV()E(), Physics letters. Section B, 415(4), 1997, pp. 435-444
Citations number
27
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
415
Issue
4
Year of publication
1997
Pages
435 - 444
Database
ISI
SICI code
0370-2693(1997)415:4<435:MOTWCI>2.0.ZU;2-A
Abstract
The e(+)e(-) --> W+W- cross section is measured in a data sample colle cted by ALEPH at a mean centre-of-mass energy of 172.09 GeV, correspon ding to an integrated luminosity of 10.65 pb(-1). Cross sections are g iven for the three topologies, fully leptonic, semi-leptonic and hadro nic of a W-pair decay. Under the assumption that no other decay modes are present, the W-pair cross section is measured to be 11.7 +/- 1.2(s tat.) +/- 0.3(syst.) pb. The existence of the triple gauge boson verte x of the Standard Model is clearly preferred by the data. The decay br anching ratio of the W boson into hadrons is measured to be B(W --> ha drons) = 67.7 +/- 3.1(stat.) +/- 0.7(syst.) %, allowing a determinatio n of the CKM matrix element \V-cs\ = 0.98 +/- 0.14(stat.) +/- 0.03(sys t.). (C) 1997 Elsevier Science B.V.