Measurement of the branching fraction for inclusive semileptonic B meson decays

A largely model-independent measurement of the inclusive electron momentum spectrum and branching fraction for semileptonic decays of B mesons is presented based on data recorded at the Υ(4S) resonance with the BABAR detector. Backgrounds from secondary charm decays are separated from prompt B decays using charge and angular correlations between the electron from one B meson and a high momentum electron tag from the second B meson. The resulting branching fraction is B(B⃗Xeν)=[10.87±0.18(stat)±0.30(syst)]%. Based on this measurement we determine the Cabibbo-Kobayashi-Maskawa (CKM) matrix element |Vcb|.

Titolo:	Measurement of the branching fraction for inclusive semileptonic B meson decays
Autori:	AUBERT B BOUTIGNY D GAILLARD JM HICHEUR A KARYOTAKIS Y LEES JP ROBBE P TISSERAND V ZGHICHE A PALANO A POMPILI A CHEN JC QI ND RONG G WANG P ZHU YS EIGEN G OFTE I STUGU B ABRAMS GS BORGLAND AW BREON AB BROWN DN BUTTON SHAFER J CAHN RN CHARLES E GILL MS GRITSAN AV GROYSMAN Y JACOBSEN RG KADEL RW KADYK J KERTH LT KOLOMENSKY YG KRAL JF LECLERC C LEVI ME LYNCH G MIR LM ODDONE PJ ORIMOTO TJ PRIPSTEIN M ROE NA ROMOSAN A RONAN MT SHELKOV VG TELNOV AV WENZEL WA HARRISON TJ HAWKES CM KNOWLES DJ O'NEALE SW PENNY RC WATSON AT WATSON NK DEPPERMANN T GOETZEN K KOCH H LEWANDOWSKI B PETERS K SCHMUECKER H STEINKE M BARLOW NR BHIMJI W BOYD JT CHEVALIER N CLARK PJ COTTINGHAM WN MACKAY C WILSON FF ABE K HEARTY C MATTISON TS MCKENNA JA THIESSEN D JOLLY S MCKEMEY AK BLINOV VE BUKIN AD BUZYKAEV AR GOLUBEV VB IVANCHENKO VN KOROL AA KRAVCHENKO EA ONUCHIN AP SEREDNYAKOV SI SKOVPEN YI YUSHKOV AN BEST D CHAO M KIRKBY D LANKFORD AJ MANDELKERN M MCMAHON S STOKER DP BUCHANAN C CHUN S HADAVAND HK HILL EJ MACFARLANE DB PAAR H PRELL S RAHATLOU S RAVEN G SCHWANKE U SHARMA V BERRYHILL JW CAMPAGNARI C DAHMES B HART PA KUZNETSOVA N LEVY SL LONG O LU A MAZUR MA RICHMAN JD VERKERKE W BERINGER J EISNER AM GROTHE M HEUSCH CA LOCKMAN WS PULLIAM T SCHALK T SCHMITZ RE SCHUMM BA SEIDEN A TURRI M WALKOWIAK W WILLIAMS DC WILSON MG CHEN E DUBOIS FELSMANN GP DVORETSKII A HITLIN DG PORTER FC RYD A SAMUEL A YANG S JAYATILLEKE S MANCINELLI G MEADOWS BT SOKOLOFF MD BARILLARI T BLOOM P FORD WT NAUENBERG U OLIVAS A RANKIN P ROY J SMITH JG VAN HOEK WC ZHANG L HARTON JL HU T KRISHNAMURTHY M SOFFER A TOKI WH WILSON RJ ZHANG J ALTENBURG D BRANDT T BROSE J COLBERG T DICKOPP M DUBITZKY RS HAUKE A MALY E MULLER PFEFFERKORN R OTTO S SCHUBERT KR SCHWIERZ R SPAAN B WILDEN L BERNARD D BONNEAUD GR BROCHARD F COHEN TANUGI J FERRAG S T'JAMPENS S THIEBAUX C VASILEIADIS G VERDERI M ANJOMSHOAA A BERNET R KHAN A LAVIN D MUHEIM F PLAYFER S SWAIN JE TINSLAY J FALBO M BOREAN C BOZZI C PIEMONTESE L SARTI A TREADWELL E ANULLI F BALDINI FERROLI R CALCATERRA A DE SANGRO R FALCIAI D FINOCCHIARO G PATTERI P PERUZZI IM PICCOLO M ZALLO A BAGNASCO S BUZZO A CONTRI R CROSETTI G LO VETERE M MACRI M MONGE MR PASSAGGIO S PASTORE FC PATRIGNANI C ROBUTTI E SANTRONI A TOSI S BAILEY S MORII M BARTOLDUS R GRENIER GJ MALLIK U COCHRAN J CRAWLEY HB LAMSA J MEYER WT ROSENBERG EI YI J DAVIER M GROSDIDIER G HOCKER A LACKER HM LAPLACE S LE DIBERDER F LEPELTIER V LUTZ AM PETERSEN TC PLASZCZYNSKI S SCHUNE MH TANTOT L TRINCAZ DUVOID S WORMSER G BIONTA RM BRIGLJEVIC V LANGE DJ VAN BIBBER K WRIGHT DM BEVAN AJ FRY JR GABATHULER E GAMET R GEORGE M KAY M PAYNE DJ SLOANE RJ TOURAMANIS C ASPINWALL ML BOWERMAN DA DAUNCEY PD EGEDE U ESCHRICH I MORTON GW NASH JA SANDERS P SMITH D TAYLOR GP BACK JJ BELLODI G DIXON P HARRISON PF POTTER RJL SHORTHOUSE HW STROTHER P VIDAL PB COWAN G FLAECHER HU GEORGE S GREEN MG KURUP A MARKER CE MCMAHON TR RICCIARDI S SALVATORE F VAITSAS G WINTER MA BROWN D DAVIS CL ALLISON J BARLOW RJ FORTI AC JACKSON F LAFFERTY GD LYON AJ SAVVAS N WEATHERALL JH WILLIAMS JC FARBIN A JAWAHERY A LILLARD V ROBERTS DA SCHIECK JR BLAYLOCK G DALLAPICCOLA C FLOOD KT HERTZBACH SS KOFLER R KOPTCHEV VB MOORE TB STAENGLE H WILLOCQ S BRAU B COWAN R SCIOLLA G TAYLOR F YAMAMOTO RK MILEK M PATEL PM PALOMBO F BAUER JM CREMALDI L ESCHENBURG V KROEGER R REIDY J SANDERS DA SUMMERS DJ HAST C TARAS P NICHOLSON H CARTARO C CAVALLO N DE NARDO G FABOZZI F GATTO C LISTA L PAOLUCCI P PICCOLO D SCIACCA C LOSECCO JM ALSMILLER JRG GABRIEL TA BRAU J FREY R IWASAKI M POTTER CT SINEV NB STROM D TORRENCE E COLECCHIA F DORIGO A GALEAZZI F MARGONI, MARTINO MORANDIN M POSOCCO M ROTONDO M SIMONETTO, FRANCO STROILI, ROBERTO VOCI C BENAYOUN M BRIAND H CHAUVEAU J DAVID P DE LA VAISSIERE C DEL BUONO L HAMON O LERUSTE P OCARIZ J PIVK M ROOS L STARK J MANFREDI PF RE V SPEZIALI V GLADNEY L GUO QH PANETTA J ANGELINI C BATIGNANI G BETTARINI S BONDIOLI M BUCCI F CALDERINI G CAMPAGNA E CARPINELLI M FORTI F GIORGI MA LUSIANI A MARCHIORI G MARTINEZ VIDAL F MORGANTI M NERI N PAOLONI E RAMA M RIZZO G SANDRELLI F TRIGGIANI G WALSH J HAIRE M JUDD D PAICK K TURNBULL L WAGONER DE ALBERT J DANIELSON N ELMER P LU C MIFTAKOV V OLSEN J SCHAFFNER SF SMITH AJS TUMANOV A VARNES EW BELLINI F CAVOTO G DEL RE D FACCINI R FERRAROTTO F FERRONI F LEONARDI E MAZZONI MA MORGANTI S PIREDDA G TEHRANI FS SERRA M VOENA C CHRIST S WAGNER G WALDI R ADYE T DE GROOT N FRANEK B GEDDES NI GOPAL GP XELLA SM ALEKSAN R EMERY S GAIDOT A GIRAUD PF DE MONCHENAULT GH KOZANECKI W LANGER M LONDON GW MAYER B SCHOTT G SERFASS B VASSEUR G YECHE C ZITO M PUROHIT MV WEIDEMANN AW YUMICEVA FX ADAM I ASTON D BERGER N BOYARSKI AM CONVERY MR COUPAL DP DONG D DORFAN J DUNWOODIE W FIELD RC GLANZMAN T GOWDY SJ GRAUGES E HAAS T HADIG T HALYO V HIMEL T HRYN'OVA T HUFFER ME INNES WR JESSOP CP KELSEY MH KIM P KOCIAN ML LANGENEGGER U LEITH DWGS LUITZ S LUTH V LYNCH HL MARSISKE H MENKE S MESSNER R MULLER DR O'GRADY CP OZCAN VE PERAZZO A PERL M PETRAK S QUINN H RATCLIFF BN ROBERTSON SH ROODMAN A SALNIKOV AA SCHIETINGER T SCHINDLER RH SCHWIENING J SIMI, GABRIELE SNYDER A SOHA A SPANIER SM STELZER J SU D SULLIVAN MK TANAKA HA VA'VRA J WAGNER SR WEAVER M WEINSTEIN AJR WISNIEWSKI WJ WRIGHT DH YOUNG CC BURCHAT PR CHENG CH MEYER TI ROAT C HENDERSON R BUGG W COHN H IZEN JM KITAYAMA I LOU XC BIANCHI F BONA M GAMBA D BOSISIO L DELLA RICCA G DITTONGO S LANCERI L POROPAT P VITALE L VUAGNIN G PANVINI RS BANERJEE S BROWN CM FORTIN D JACKSON PD KOWALEWSKI R RONEY JM BAND HR DASU S DATTA M EICHENBAUM AM HU H JOHNSON JR LIU R DI LODOVICO F MOHAPATRA A PAN Y PREPOST R SCOTT IJ SEKULA SJ VON WIMMERSPERG TOELLER JH WU J WU SL YU Z NEAL H. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2003
Rivista:	PHYSICAL REVIEW D
Abstract:	A largely model-independent measurement of the inclusive electron momentum spectrum and branching fraction for semileptonic decays of B mesons is presented based on data recorded at the Υ(4S) resonance with the BABAR detector. Backgrounds from secondary charm decays are separated from prompt B decays using charge and angular correlations between the electron from one B meson and a high momentum electron tag from the second B meson. The resulting branching fraction is B(B⃗Xeν)=[10.87±0.18(stat)±0.30(syst)]%. Based on this measurement we determine the Cabibbo-Kobayashi-Maskawa (CKM) matrix element \|Vcb\|.
Handle:	http://hdl.handle.net/11577/2461115
Appare nelle tipologie:	01.01 - Articolo in rivista

File in questo prodotto:

Non ci sono file associati a questo prodotto.

Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/11577/2461115

Citazioni

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.