MEASUREMENT OF THE B(S)O LIFETIME

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doi:10.1016/0370-2693(94)91120-7

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The lifetime of the B(s)0 has been measured in a data sample of 889 000 hadronic events recorded with the ALEPH detector at LEP. After background subtraction 30.8 +/- 6.9 events are attributed to the semileptonic decay of the B(S)0 to a D(S)- and an opposite-sign lepton. A maximum-likelihood fit to the distribution of the proper times of these events yields a B(s)0 lifetime of tau(B)s = 1.92 (-0.35)+0.45 +/- 0.04 ps.

Titolo:	MEASUREMENT OF THE B(S)O LIFETIME
Autori:	BUSKULIC D DEBONIS I DECAMP D GHEZ P GOY C LEES JP MINARD MN ODIER P PIETRZYK B ARIZTIZABAL F COMAS P CRESPO JM EFTHYMIOPOULOS I FERNANDEZ E FERNANDEZBOSMAN M GAITAN V GARRIDO L MARTINEZ M MATTISON T ORTEU S PACHECO A PADILLA C PASCUAL A CREANZA D DEPALMA M FARILLA A IASELLI G MAGGI G MARINELLI N NATALI S NUZZO S RANIERI A RASO G ROMANO F RUGGIERI F SELVAGGI G SILVESTRIS L TEMPESTA P ZITO G CHAI Y HU H HUANG D HUANG X LIN J WANG T XIE Y XU D XU R ZHANG J ZHANG L ZHAO W BONVICINI G BOUDREAU J CASPER D DREVERMANN H FORTY RW GANIS G GAY C GIRONE M HAGELBERG R HARVEY J HILGART J JACOBSEN R JOST B KNOBLOCH J LEHRAUS I MAGGI M MARKOU C MATO P MEINHARD H MINTEN A MIQUEL R MOSER HG PALAZZI P PATER JR PERLAS JA PERRODO P PUSZTASZERI JF RANJARD F ROLANDI, LUIGI ROTHBERG J RUAN T SAICH M SCHLATTER D SCHMELLING M SEFKOW F TEJESSY W TOMALIN IR VEENHOF R WACHSMUTH H WASSERBAECH S WIEDENMANN W WILDISH T WITZELING W WOTSCHACK J AJALTOUNI Z BARDADINOTWINOWSKA M BARRES A BOYER C FALVARD A GAY P GUICHENEY C HENRARD P JOUSSET J MICHEL B MONTRET JC PALLIN D PERRET P PODLYSKI F PRORIOL J SAADI F FEARNLEY T HANSEN JB HANSEN JD HANSEN JR HANSEN PH JOHNSON SD MOLLERUD R NILSSON BS KYRIAKIS A SIMOPOULOU E SIOTIS I VAYAKI A ZACHARIADOU K BADIER J BLONDEL A BONNEAUD G BRIENT JC BOURDON P FOUQUE G PASSALACQUA L ROUGE A RUMPF M TANAKA R VERDERI M VIDEAU H CANDLIN DJ PARSONS MI VEITCH E FOCARDI E MONETA L PARRINI G CORDEN M DELFINO M GEORGIOPOULOS C JAFFE DE LEVINTHAL D ANTONELLI A BENCIVENNI G BOLOGNA G BOSSI F CAMPANA P CAPON G CERUTTI F CHIARELLA V FELICI G LAURELLI P MANNOCCHI G MURTAS F MURTAS GP PEPEALTARELLI M SALOMONE S COLRAIN P TENHAVE I KNOWLES IG LYNCH JG MAITLAND W MORTON WT RAINE C REEVES P SCARR JM SMITH K SMITH MG THOMPSON AS THORN S TURNBULL RM BRANDL B BRAUN O GEWENIGER C GRAEFE G HANKE P HEPP V KARGER C KLUGE EE MAUMARY Y PUTZER A RENSCH B STAHL A TITTEL K WUNSCH M BEUSELINCK R BINNIE DM CAMERON W CATTANEO M COLLING DJ DORNAN PJ HASSARD JF LIESKE NM MOUTOUSSI A NASH J PATTON S PAYNE DG PHILLIPS MJ SANMARTIN G SEDGBEER JK WRIGHT AG GIRTLER P KUHN D RUDOLPH G VOGL R BOWDERY CK BRODBECK TJ FINCH AJ FOSTER F HUGHES G JACKSON D KEEMER NR NUTTALL M PATEL A SLOAN T SNOW SW WHELAN EP GALLA A GREENE AM KLEINKNECHT K RAAB J RENK B SANDER HG SCHMIDT H WALTHER SM WANKE R WOLF B BENCHEIKH AM BENCHOUK C BONISSENT A CALVET D CARR J COYLE P DIACONU C DRINKARD J ETIENNE F NICOD D PAYRE P ROOS L ROUSSEAU D SCHWEMLING P TALBY M ADLUNG S ASSMANN R BAUER C BLUM W BROWN D CATTANEO P DEHNING B DIETL H DYDAK F FRANK M HALLEY AW JAKOBS K LAUBER J LUTJENS G LUTZ G MANNER W RICHTER R SCHRODER J SCHWARZ AS SETTLES R SEYWERD H STIERLIN U STIEGLER U STDENIS R WOLF G ALEMANY R BOUCROT J CALLOT O CORDIER A DAVIER M DUFLOT L GRIVAZ JF HEUSSE P JANOT P KIMFN DW LEDIBERDER F LEFRANCOIS J LUTZ AM MUSOLINO G SCHUNE MH VEILLET JJ VIDEAU I ABBANEO D BAGLIESI G BATIGNANI G BOTTIGLI U BOZZI C CALDERINI G CARPINELLI M CIOCCI MA CIULLI V DELLORSO R FERRANTE I FIDECARO F FOA L FORTI F GIASSI A GIORGI MA GREGORIO A LIGABUE, FRANCO LUSIANI, Alberto MANNELLI EB MARROCCHESI PS MESSINEO A PALLA F RIZZO G SANGUINETTI G SPAGNOLO P STEINBERGER J TENCHINI R TONELLI G TRIGGIANI G VALASSI A VANNINI C VENTURI A VERDINI PG WALSH J BETTERIDGE AP GAO Y GREEN MG JOHNSON DL MARCH PV MEDCALF T MIR LM QUAZI IS STRONG JA BERTIN V BOTTERILL DR CLIFFT RW EDGECOCK TR HAYWOOD S EDWARDS M NORTON PR THOMPSON JC BLOCHDEVAUX B COLAS P DUARTE H EMERY S KOZANECKI W LANCON E LEMAIRE MC LOCCI E MARX B PEREZ P RANDER J RENARDY JF ROSOWSKY A ROUSSARIE A SCHULLER JP SCHWINDLING J MOHAND DS VALLAGE B JOHNSON RP LITKE AM TAYLOR G WEAR J BABBAGE W BOOTH CN BUTTAR C CARTWRIGHT S COMBLEY F DAWSON I THOMPSON LF BARBERIO E BOHRER A BRANDT S COWAN G GRUPEN C LUTTERS G RIVERA F SCHAFER U SMOLIK L BOSISIO L DELLAMARINA R GIANNINI G GOBBO B PITIS L RAGUSA F BELLANTONI L CHEN W CONWAY JS FENG Z FERGUSON DPS GAO YS GRAHL J HARTON JL HAYES OJ NACHTMAN JM PAN YB SAADI Y SCHMITT M SCOTT I SHARMA V SHI ZH TURK JD WALSH AM WEBER FV WU SL WU X ZHENG M ZOBERNIG G RI ANTONELLI ANTONELLA/C 6238 2011 Buttar Craig/D 3706 2011 Stahl Achim/E 8846 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 S.t. Denis Richard/C 8997 2012 Ferrante Isidoro/F 1017 2012 mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	1994
Rivista:	PHYSICS LETTERS. SECTION B
Abstract:	The lifetime of the B(s)0 has been measured in a data sample of 889 000 hadronic events recorded with the ALEPH detector at LEP. After background subtraction 30.8 +/- 6.9 events are attributed to the semileptonic decay of the B(S)0 to a D(S)- and an opposite-sign lepton. A maximum-likelihood fit to the distribution of the proper times of these events yields a B(s)0 lifetime of tau(B)s = 1.92 (-0.35)+0.45 +/- 0.04 ps.
Handle:	http://hdl.handle.net/11384/6853
Appare nelle tipologie:	1.1 Articolo in rivista

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