SEARCH FOR THE B-C MESON

Authors
ABREU P ADAM W ADYE T AJINENKO I ALEKSEEV GD ALEMANY R ALLPORT PP ALMEHED S AMALDI U AMATO S ANDREAZZA A ANDRIEUX ML ANTILOGUS P APEL WD ASMAN B AUGUSTIN JE AGUSTINUS A BAILLON P BAMBADE P BARAO F BARBI M BARBIELLINI G BARDIN DY BARKER G BARONCELLI A BARRING O BARRIO JA BARTL W BATES MJ BATTAGLIA M BAUBILLIER M BAUDOT J BECKS KH BEGALLI M BEILLIERE P BELOKOPYTOV Y BELOUS K BENVENUTI AC BERGGREN M BERTINI D BERTRAND D BESANCON M BIANCHI F BIGI M BILENKY MS BILLOIR P BIZOUARD MA BLOCH D BLUME M BOLOGNESE T BONESINI M BONIVENTO W BOOTH PSL BORISOV G BOSIO C BOTNER O BOUDINOV E BOUQUET B BOURDARIOS C BOWCOCK TJV BOZZO M BRANCHINI P BRAND KD BRENKE T BRENNER RA BRICMAN C BROWN RCA 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 CANKOCAK K CAO F CARENA F CARROLL L CASO C GIMENEZ MVC CATTAI A CAVALLO FR CHABAUD V CHARPENTIER P CHAUSSARD L CHECCHIA P CHELKOV GA CHEN M CHIERICI R CHLIAPNIKOV P CHOCHULA P CHOROWICZ V CINDRO V COLLINS P CONTRI R CORTINA E COSME G COSSUTTI F COWELL JH CRAWLEY HB CRENNELL D CROSETTI G MAESTRO JC CZELLAR S DAHLJENSEN E DAHM J DALMAGNE B DAM M DAMGAARD G DAUNCEY PD DAVENPORT M DASILVA W DEFOIX C DEGHORAIN A DELLARICCA G DELPIERRE P DEMARIA N DEANGELIS A DEBOER W DEBRABANDERE S DECLERCQ C DELAVAISSIERE C DELOTTO B DEMIN A DEPAULA L DESAINTJEAN C DIJKSTRA H DICIACCIO L DIDIODATO A DJAMA F DJANNATI A DOLBEAU J DOROBA K DRACOS M DREES J DREES KA DRIS M DURAND JD EDSALL D EHRET R EIGEN G EKELOF T EKSPONG G ELSING M ENGEL JP ERZEN B SANTO ME FALK E FASSOULIOTIS D FEINDT M FENYUK A FERRER A FICHET S FILIPPAS TA FIRESTONE A FISCHER PA FOETH H FOKITIS E FONTANELLI F FORMENTI F FRANEK B FRENKIEL P FRIES DC FRODESEN AG FRUHWIRTH R FULDAQUENZER F FUSTER J GALLONI A GAMBA D GANDELMAN M GARCIA C GARCIA J GASPAR C GASPARINI U GAVILLET P GAZIS EN GELE D GERBER JP GERDYUKOV L GOKIELI R GOLOB B GOPAL G GORN L GORSKI M GOUZ Y GRACCO V GRAZIANI E GREEN C GREFRATH A GRIS P GROSDIDIER G GRZELAK K GUMENYUK S GUNNARSSON P GUNTHER M GUY J HAHN F HAHN S HAJDUK Z HALLGREN A HAMACHER K HARRIS FJ HEDBERG V HENRIQUES R HERNANDEZ JJ HERQUET P HERR H HESSING TL HEUSER JM HIGON E HILKE HJ HILL TS 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 KAISER M KAPUSTA F KARAFASOULIS K KARLSSON M KARVELAS E KATSANEVAS S KATSOUFIS EC KERANEN R KHOKHLOV Y KHOMENKO BA KHOVANSKI NN KING B KJAER NJ KLAPP O KLEIN H KLOVNING A KLUIT P KOENE B KOKKINIAS P KORATZINOS M KORCYL K KOSTIOUKHINE V KOURKOUMELIS C KOUZNETSOV O KRAMMER M KREUTER C KRONKVIST I KRUMSTEIN Z KRUPINSKI W KUBINEC P KUCEWICZ W KURVINEN K LACASTA C LAKTINEH I LAMSA JW LANCERI L LANE DW LANGEFELD P LAUGIER JP LAUHAKANGAS R LEDER G LEDROIT F LEFEBURE V LEGAN CK LEITNER R LEMONNE J LENZEN G LEPELTIER V LESIAK T LIBBY J LIKO D LINDNER R LIPNIACKA A LIPPI I LOERSTAD B LOKEN JG LOPEZ JM LOUKAS D LUTZ P LYONS L MACNAUGHTON J MAEHLUM G MAHON JR MAIO A MALMGREN TGM MALYCHEV V MANDL E MARCO J MARCO R MARECHAL B MARGONI M MARIN JC MARIOTTI C MARKOU A MARTINEZRIVERO C MARTINEZVIDAL F GARCIA SM MATORRAS F MATTEUZZI C MATTHIAE G MAZZUCATO M MCCUBBIN M MCKAY R MCNULTY R MEDBO J MERK M MERONI C MEYER S MEYER WT MIAGKOV A MICHELOTTO M MIGLIORE E MIRABITO L MITAROFF WA MJOERNMARK U MOA T MOELLER R MOENIG K MONGE MR MORETTINI P MUELLER H MUENICH K MULDERS M MUNDIM LM MURRAY WJ MURYN B MYATT G NARAGHI F NAVARRIA FL NAVAS S NAWROCKI K NEGRI P NEMECEK S NEUMANN W NICOLAIDOU R NIELSEN BS NIEUWENHUIZEN M NIKOLAENKO V NISS P NOMEROTSKI A NORMAND A NOVAK M OBERSCHULTEBECKMANN W OBRAZTSOV V OLSHEVSKI AG ONOFRE A ORAVA R OSTERBERG K OURAOU A PAGANINI P PAGANONI M PAGES P PAIN R PALKA H PAPADOPOULOU TD PAPAGEORGIOU K PAPE L PARKES C PARODI F PASSERI A PEGORARO M PERNEGGER H PERNICKA M PERROTTA A PETRIDOU C PETROLINI A PHILLIPS HT PIANA G PIERRE F PIMENTA M 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 REALE M REBECCHI P REDAELLI NG REGLER M REID D REINHARDT R RENTON PB RESVANIS LK RICHARD F RICHARDSON J RIDKY J RINAUDO G RIPP I ROMERO A RONCAGLIOLO I RONCHESE P ROOS L ROSENBERG EI ROUDEAU P ROVELLI T RUCKSTUHL W RUHLMANNKLEIDER V RUIZ A RYBICKI K SAARIKKO H SACQUIN Y SADOVSKY A SAHR O SAJOT G SALT J SANCHEZ J SANNINO M SCHIMMELPFENNIG M SCHNEIDER H SCHWICKERATH U SCHYNS MAE SCIOLLA G SCURI F SEAGER P SEDYKH Y SEGAR AM SEITZ A SEKULIN R SERBELLONI L SHELLARD RC SIEGRIST P SILVESTRE R SIMONETTI S SIMONETTO F SISAKIAN AN SITAR B SKAALI TB SMADJA G SMIRNOV N SMIRNOVA O SMITH GR SOLOVIANOV O 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 TAVERNET JP 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
Citation
P. Abreu et al., SEARCH FOR THE B-C MESON, Physics letters. Section B, 398(1-2), 1997, pp. 207-222
Citations number
29
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
398
Issue
1-2
Year of publication
1997
Pages
207 - 222
Database
ISI
SICI code
0370-2693(1997)398:1-2<207:SFTBM>2.0.ZU;2-A
Abstract
In a sample of 3.02 million hadronic Z(0) decays collected by the DELP HI detector, 270 J/psi --> e(+)e(-) candidates have been selected. A s earch for fully reconstructed B-c(+/-) mesons has yielded one B-c(+/-) --> J/psi pi(+/-) candidate, no B-c(+/-) --> J/psi e(+/-) nu(e) candi dates, and one B-c(+/-) --> J/psi pi(+)pi(-)pi(+) candidate, consisten t with expected background in each channel. The following 90% confiden ce level upper limits ate determined: Br(Z(0) --> B-c(+/-) X) x Br(B-c (+/-) --> J/psi pi(+)) < (1.05 to 0.84) x 10(-4) and Br(Z(d) --> B-c(/-) X) x Br(B-c(+/-) --> J/psi e(+/-) nu(e)) < (5.8 to 5.0) x 10(-5), where the ranges quoted correspond to the range of predicted B-c(+/-) lifetimes from 0.4 to 1.4 ps, and Br(Z(0) --> B-c(+/-) X) x Br(B-c(+/- ) --> J/psi pi(+)pi(-)pi(+/-)) < 1.75 x 10(-4), constant over the rang e of predicted B-c(+/-) lifetimes. (C) 1997 Elsevier Science B.V.