MEASUREMENT OF THE W-MASS IN E(-) COLLISIONS AT PRODUCTION THRESHOLD()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 MIQUEL R MIR LM ORTEU S 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 DREVERMANN H FORTY RW FRANK M HAGELBERG R HARVEY J JANOT P JOST B KNERINGER E KNOBLOCH J LEHRAUS I LUTTERS G MATO P MINTEN A MONETA L PACHECO A PUSZTASZERI JF RANJARD F RENSING P RIZZO G ROLANDI L 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 JB 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 CORDEN M GEORGIOPOULOS C 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 GEWENIGER C GRAEFE G HANKE P HANSPER G HEPP V KLUGE EE PUTZER A SCHMIDT M 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 STACEY AM WILLIAMS MD DISSERTORI G GHETE VM GIRTLER P KUHN D RUDOLPH G BETTERIDGE AP BOWDERY CK COLRAIN P CRAWFORD G FINCH AJ FOSTER F HUGHES G JONES RW 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 CALVET D CARR J COYLE P DIACONU C KONSTANTINIDIS N LEROY O MOTSCH F PAYRE P ROUSSEAU D TALBY M SADOUKI A THULASIDAS M TILQUIN A TRABELSI K ALEPPO M RAGUSA F BERLICH R BLUM W BUSCHER V DIETL H DYDAK F 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 SIMION S TOURNEFIER E VEILLET JJ VIDEAU I ZERWAS D AZZURRI P BAGLIESI G BATIGNANI G BETTARINI S BOZZI C CALDERINI G CARPINELLI M CIOCCI MA 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 SPAGNOLO P STEINBERGER J TENCHINI R TONELLI G 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 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 GAO YS 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-MASS IN E(-) COLLISIONS AT PRODUCTION THRESHOLD()E(), Physics letters. Section B, 401(3-4), 1997, pp. 347-362
Citations number
56
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
401
Issue
3-4
Year of publication
1997
Pages
347 - 362
Database
ISI
SICI code
0370-2693(1997)401:3-4<347:MOTWIE>2.0.ZU;2-J
Abstract
In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pai r production of W bosons in e(+)e(-) collisions was observed for the f irst time by the LEP experiments. An integrated luminosity of 11 pb(-1 ) was recorded in the ALEPH detector, in which WW candidate events wer e observed. In 6 events both Ws decay leptonically. In 16 events, one W decays leptonically, the other into hadrons. In the channel where bo th Ws decay into hadrons, a signal was separated from the large backgr ound by means of several multi-variate analyses. The W pair cross-sect ion is measured to be sigma(ww) = 4.23 +/- 0.73(stat.) +/- 0.19(syst.) pb. From this cross-section, the W mass is derived within the framewo rk of the Standard Model: m(w) = 80.14 +/- 0.34(stat.) +/- 0.09(syst.) +/- 0.03(LEP energy) GeV/c(2) (C) 1997 Published by Elsevier Science B.V.