MEASUREMENT OF THE INCLUSIVE CHARMLESS AND DOUBLE-CHARM-B BRANCHING RATIOS

Authors
ABREU P ADAM W ADYE T ADZIC P ALEKSEEV GD ALEMANY P ALLPORT PP ALMEHED S AMALDI U AMATO S ANDERSSON P ANDREAZZA A ANTILOGUS P APEL WD ARNOUD Y ASMAN B AUGUSTIN JE AUGUSTINUS A BAILLON P BAMBADE P BARAO F BARBIER R BARDIN DY BARKER G BARONCELLI A BARRING O BATES MJ BATTAGLIA M BAUBILLIER M BECKS KH BEGALLI M BEILLIERE P BELOKOPYTOV Y BELOUS K BENVENUTI AC BERAT C BERGGREN M BERTINI D BERTRAND D BESANCON M BIANCHI F BIGI M BILENKY MS BILLOIR P BIZOUARD MA BLOCH D BONESINI M BONIVENTO W BOONEKAMP M BOOTH PSL BORGLAND AW BORISOV G BOSIO C BOTNER O BOUDINOV E BOUQUET B BOURDARIOS C BOWCOCK TJV BOZOVIC I BOZZO M BRANCHINI P BRAND KD BRENKE T BRENNER RA BROWN R BRUCKMAN P BRUNET JM BUGGE L BURAN T BURGSMUELLER T BUSCHMANN P CABRERA S CACCIA M CALVI M ROZAS AJC CAMPORESI T CANALE V CANEPA M CARENA F CARROLL L CASO C GIMENEZ MVC CATTAI A CAVALLO FR CERRUTI C CHABAUD V CHAPKIN M CHARPENTIER P CHAUSSARD L CHECCHIA P CHELKOV GA CHEN M CHIERICI R CHLIAPNIKOV P CHOCHULA P CHOROWICZ V CHUDOBA J COLLINS P COLOMER M CONTRI R CORTINA E COSME G COSSUTTI F COWELL JH CRAWLEY HB CRENNELL D CROSETTI G MAESTRO JC CZELLAR S DALMAGNE B DAMGAARD G DAUNCEY PD DAVENPORT M DASILVA W DEGHORAIN A DELLARICCA G DELPIERRE P DEMARIA N DEANGELIS A DEBOER W DEBRABANDERE S DECLERCQ C DELAVAISSIERE C DELOTTO B DEMIN A DEPAULA L DIJKSTRA H DICIACCIO L DIDIODATO A DJANNATI A DOLBEAU J DOROBA K DRACOS M DREES J DREES KA DRIS M DUPERRIN A DURAND JD EDSALL D EHRET R EIGEN G EKELOF T EKSPONG G ELLERT M ELSING M ENGEL JP ERZEN B SANTO ME FALK E FANOURAKIS G FASSOULIOTIS D FAYOT J FEINDT M FENYUK A FERRARI P FERRER A FICHET S FIRESTONE A FISCHER PA FLAGMEYER U FOETH H FOKITIS E FONTANELLI F FORMENTI F FRANEK B FRODESEN AG FRUHWIRTH R FULDAQUENZER F FUSTER J GALLONI A GAMBA D GANDELMAN M GARCIA C GARCIA J CASPAR C GASPAR M GASPARINI U GAVILLET P GAZIS EN GELE D GERBER JP GERDYUKOV L GHODBANE N GLEGE F GOKIELI R GOLOB B CABALLERO IG GOPAL G GORN L GORSKI M GRACCO V GRAHL J GRAZIANI E GREEN C GREFRATH A GRIS P GROSDIDIER G GRZELAK K GUNTHER M GUY J HAHN F HAHN S HAIDER S HAJDUK Z HALLGREN A HAMACHER K HARRIS FJ HEDBERG V HEISING S HENRIQUES R HERNANDEZ JJ HERQUET P HERR H HESSING TL HEUSER JM HIGON E HOLMGREN SO HOLT PJ HOLTHUIZEN D HOORELBEKE S HOULDEN M HRUBEC J HUET K HULTQVIST K JACKSON JN JACOBSSON R JALOCHA P JANIK R JARLSKOG C JARLSKOG G JARRY P JEANMARIE B JOHANSSON EK JONSSON L JONSSON P JORAM C JUILLOT P KAPUSTA F KARAFASOULIS K KATSANEVAS S KATSOUFIS EC KERANEN R KHOKHLOV Y KHOMENKO BA KHOVANSKI NN KING B KJAER NJ KLAPP O KLEIN H KLUIT P KNOBLAUCH D KOKKINIAS P KORATZINOS M KORCYL K KOSTIOUKHINE V KOURKOUMELIS C KOUZNETSOV O KRAMMER M KREUTER C KRONKVIST I KRUMSTEIN Z KUBINEC P KUCEWICZ W KURVINEN K LACASTA C LAMSA JW LANCERI L LANE DW LANGEFELD P LAUGIER JP LAUHAKANGAS R LEDER G LEDROIT F LEFEBURE V LEGAN CK LEISOS A LEITNER R LEMONNE J LENZEN G LEPELTIER V LESIAK T LETHUILLIER M LIBBY J LIKO D LIPNIACKA A LIPPI I LOERSTAD B LOKEN JG LOPES JH LOPEZ JM LOUKAS D LUTZ P LYONS L MACNAUGHTON J MAHON JR MAIO A MALEK A MALMGREN TGM MALYCHEV V MANDL F MARCO J MARCO R MARECHAL B MARGONI M MARIN JC MARIOTTI C MARKOU A MARTINEZRIVERO C MARTINEZVIDAL F GARCIA SMI MATORRAS F MATTEUZZI C MATTHIAE G MAZZUCATO F MAZZUCATO M MCCUBBIN M MCKAY R MCNULTY R MCPHERSON G MEDBO J MERONI C MEYER WT MICHELOTTO M MIGLIORE E MIRABITO L MITAROFF WA MJOERNMARK U MOA T MOELLER R MOENIG K MONGE MR MOREAU X MORETTINI P MUENICH K MULDERS M MUNDIM LM MURRAY WJ MURYN B MYATT G MYKLEBUST T NARAGHI F NAVARRIA FL NAVAS S NAWROCKI K NEGRI P NEMECEK S NEUFELD N NEUMANN W NEUMEISTER N NICOLAIDOU R NIELSEN BS NIEUWENHUIZEN M NIKOLAENKO V NIKOLENKO M NISS P NOMEROTSKI A NORMAND A NYGREN A OBERSCHULTEBECKMANN W OBRAZTSOV V OLSHEVSKI AG ONOFRE A ORAVA R ORAZI G OSTERBERG K OURAOU A PAGANINI P PAGANONI M PAIANO S PAIN R PAIVA R PALKA H PAPADOPOULOU TD PAPAGEORGIOU K PAPE L PARKES C PARODI F PARZEFALL U PASSERI A PEGORARO M PERALTA L PERNEGGER H PERNICKA M PERROTTA A PETRIDOU C PETROLINI A PHILLIPS HT PIANA G PIERRE F PIMENTA M PIOTTO E PODOBNIK T PODOBRIN O POL ME POLOK G POROPAT P POZDNIAKOV V PRIVITERA P PUKHAEVA N PULLIA A RADOJICIC D RAGAZZI S RAHMANI H RAMES J RATOFF PN READ AL REBECCHI P REDAELLI NG REGLER M REID D REINHARDT R RENTON PB RESVANIS LK RICHARD F RIDKY J RINAUDO G ROHEN O ROMERO A RONCHESE P ROSENBERG EI ROSINSKY P ROUDEAU P ROVELLI T RUHLMANNKLEIDER V RUIZ A SAARIKKO H SACQUIN Y SADOVSKY A SAJOT G SALT J SAMPSONIDIS D SANNINO M SCHNEIDER H SCHWICKERATH U SCHYNS MAE SCURI F SEAGER P SEDYKH Y SEGAR AM SEKULIN R SHELLARD RC SHERIDAN A SILVESTRE R SIMONETTO F SISAKIAN AN SKAALI TB SMADJA G SMIRNOV N SMIRNOVA O SMITH GR SOLOVIANOV O SOPCZAK A SOSNOWSKI R SOUZASANTOS D SPASSOV T SPIRITI E SPONHOLZ P SQUARCIA S STAMPFER D STANESCU C STANIC S STAPNES S STAVITSKI I STEVENSON K STOCCHI A STRAUSS J STRUB R STUGU B SZCZEKOWSKI M SZEPTYCKA M TABARELLI T TCHIKILEV O TEGENFELDT F TERRANOVA F THOMAS J TILQUIN A TIMMERMANS J TKATCHEV LG TODOROV T TODOROVA S TOET DZ TOMARADZE A TOME B TONAZZO A TORTORA L TRANSTROMER G TREILLE D TRISTRAM G TROMBINI A TRONCON C TSIROU A TURLUER ML TYAPKIN IA TYNDEL M TZAMARIAS S UEBERSCHAER B ULLALAND O UVAROV V VODOPYANOV AS VRBA V
Citation
P. Abreu et al., MEASUREMENT OF THE INCLUSIVE CHARMLESS AND DOUBLE-CHARM-B BRANCHING RATIOS, Physics letters. Section B, 426(1-2), 1998, pp. 193-206
Citations number
37
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
426
Issue
1-2
Year of publication
1998
Pages
193 - 206
Database
ISI
SICI code
0370-2693(1998)426:1-2<193:MOTICA>2.0.ZU;2-P
Abstract
The DELPHI experiment at LEP has measured the inclusive charmless B ha dron decay branching ratio, the B branching ratio into two charmed par ticles, and the total number of charmed particles per B decay, using t he hadronic Z data taken between 1992 and 1995. The results are extrac ted from a fit to the b-tagging probability distribution based on the precise impact parameter measurements made using the microvertex detec tor. The inclusive charmless B branching ratio, including B decays int o hidden charm (c (c) over bar), is measured to be 0.033 +/- 0.021. Th e B branching ratio into two open charmed particles is 0.136 +/- 0.042 . The mean number of charmed particles per B decay (including hidden c harm) is 1.147 +/- 0.041. After subtracting the B decay branching rati o into hidden charm, the charmless B branching ratio is found to be 0. 007 +/- 0.021, compatible with the Standard Model expectation. Models that predict an additional contribution to the charmless B branching r atio of 0.037 or higher are excluded with at least 95% confidence. (C) 1998 Elsevier Science B.V. All rights reserved.