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SEARCH FOR EXCLUSIVE CHARMLESS B-MESON DECAYS WITH THE DELPHI DETECTOR AT LEP

By ABREU P, ADAM W, ADYE T, AGASI E, AJINENKO I, ALEKSAN R, ALEKSEEV GD, ALLPORT PP, ALMEHED S, ALVSVAAG SJ, AMALDI U, AMATO S, ANDREAZZA A, ANDRIEUX ML, ANTILOGUS P, APEL WD, ARNOUD Y, ASMAN B, AUGUSTINUS A, BAILLON P, BAMBADE P, BARAO F, BARATE R, BARBIELLINI G, BARDIN DY, BARKER GJ, BARONCELLI A, BARRING O, BARRIO JA, BARTL W, BATES MJ, BATTAGLIA M, BAUBILLIER M, BAUDOT J, BECKS KH, BEGALLI M, BEILLIERE P, BELOKOPYTOV Y, BENVENUTI AC, BERGGREN M, BERTRAND D, BIANCHI F, BIGI M, BILENKY MS, BILLOIR P, BLOCH D, BLUME M, BLYTH S, BOCCI V, BOLOGNESE T, BONESINI M, BONIVENTO W, BOOTH PSL, BORISOV G, BOSIO C, BOSWORTH S, BOTNER O, BOUDINOV E, BOUQUET B, BOURDARIOS C, BOWCOCK TJV, BOZZO M, BRANCHINI P, BRAND KD, BRENKE T, BRENNER RA, BRICMAN C, BRILLAULT L, BROWN RCA, BRUCKMAN P, BRUNET JM, BUGGE L, BURAN T, BURGSMUELLER T, BUSCHMANN P, BUYS A, CACCIA M, CALVI M, ROZAS AJC, CAMPORESI T, CANALE V, CANEPA M, CANKOCAK K, CAO F, CARENA F, CARRILHO P, CARROLL L, CASO C, GIMENEZ MVC, CATTAI A, CAVALLO FR, CERRITO L, CHABAUD V, CHARPENTIER P, CHAUSSARD L, CHAUVEAU J, CHECCHIA P, CHELKOV GA, CHIERICI R, CHLIAPNIKOV P, CHOCHULA P, CHOROWICZ V, CINDRO V, COLLINS P, CONTRERAS JL, CONTRI R, CORTINA E, COSME G, COSSUTTI F, CRAWLEY HB, CRENNELL D, CROSETTI G, MAESTRO JC, CZELLAR S, DAHLJENSEN E, DAHM J, DALMAGNE B, DAM M, DAMGAARD G, DAUM A, DAUNCEY PD, DAVENPORT M, DASILVA W, DEFOIX C, DELLARICCA G, DELPIERRE P, DEMARIA N, DEANGELIS A, DEBOECK H, DEBOER W, DEBRABANDERE S, DECLERCQ C, DELAVAISSIERE C, DELOTTO B, DEMIN A, DEPAULA L, DESAINTJEAN C, DIJKSTRA H, DICIACCIO L, DJAMA F, DOLBEAU J, DONSZELMANN M, DOROBA K, DRACOS M, DREES J, DREES KA, DRIS M, DUFOUR Y, DUPONT F, EDSALL D, EHRET R, EIGEN G, EKELOF T, EKSPONG G, ELSING M, ENGEL JP, ERSHAIDAT N, ERZEN B, SANTO ME, FALK E, FASSOULIOTIS D, FEINDT M, FERRER A, 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, FURSTENAU H, FUSTER J, GALLONI A, GAMBA D, GANDELMAN N, GARCIA C, GARCIA J, GASPAR C, GASPARINI U, GAVILLET P, GAZIS EN, GELE D, GERBER JP, GERDYUKOV L, GIBBS M, GILLESPIE D, GOKIELI R, GOLOB B, GOPAL G, GORN L, GORSKI M, GOUZ Y, GRACCO V, GRAZIANI E, GROSDIDIER G, GUNNARSSON P, GUNTHER M, GUY J, HAEDINGER U, HAHN F, HAHN M, HAHN S, HAJDUK Z, HALLGREN A, HAMACHER K, HAO W, HARRIS FJ, HEDBERG V, HENRIQUES R, HERNANDEZ JJ, HERQUET P, HERR H, HESSING TL, HIGON E, HILKE HJ, HILL TS, HOLMGREN SO, HOLT PJ, HOLTHUIZEN D, HOULDEN M, HRUBEC J, HUET K, HULTQVIST K, IOANNOU P, JACKSON JN, JACOBSSON R, JALOCHA P, JANIK R, JARLSKOG G, JARRY P, JEANMARIE B, JOHANSSON EK, JONSSON L, JONSSON P, JORAM C, JUILLOT P, KAISER M, KALMUS G, KAPUSTA F, KARLSSON M, KARVELAS E, KATSANEVAS S, KATSOUFIS EC, KERANEN R, KHOMENKO BA, KHOVANSKI NN, KING B, KJAER NJ, KLEIN H, KLOVNING A, KLUIT P, KOEHNE JH, KOENE B, KOKKINIAS P, KORATZINOS M, KOSTIOUKHINE V, KOURKOUMELIS C, KOUZNETSOV O, KRAMER PH, KRAMMER M, KREUTER C, KROLIKOWSKI J, KRONKVIST I, KRUMSTEIN Z, KRUPINSKI W, KUBINEC P, KUCEWICZ W, KURVINEN K, LACASTA C, LAKTINEH I, LAMBLOT S, LAMSA JW, LANCERI L, LANE DW, LANGEFELD P, LAST I, LAUGIER JP, LAUHAKANGAS R, LEDER G, LEDROIT F, LEFEBURE V, LEGAN CK, LEITNER R, LEMOIGNE Y, LEMONNE J, LENZEN G, LEPELTIER V, LESIAK T, LIKO D, LINDNER R, LIPNIACKA A, LIPPI I, LOERSTAD B, LOKAJICEK M, LOKEN JG, LOPEZ JM, LOPEZFERNANDEZ A, AGUERA MAL, LOUKAS D, LUTZ P, LYONS L, MACNAUGHTON J, MAEHLUM G, MALYCHEV V, MANDL F, MARCO J, MARECHAL B, MARGONI M, MARIN JC, MARIOTTI C, MARKOU A, MARON T, MARTINEZRIVERO C, MARTINEZVIDAL F, GARCIA SMI, MATORRAS F, MATTEUZZI C, MATTHIAE G, MAZZUCATO M, MCCUBBIN M, MCKAY R, MCNULTY R, MEDBO J, MERONI C, MEYER WT, MICHELOTTO M, MIGLIORE E, MIRABITO L, MITAROFF WA, MJOERNMARK U, MOA T, MOELLER R, MOENIG K, MONGE MR, MORETTINI P, MUELLER H, MUNDIM LM, MURRAY WJ, MURYN B, MYATT G, NARAGHI F, NAVARRIA FL, NAVAS S, NEGRI P, NEMECEK S, NEUMANN W, NEUMEISTER N, NICOLAIDOU R, NIELSEN BS, NIEUWENHUIZEN M, NIKOLAENKO V, NISS P, NOMEROTSKI A, NORMAND A, OBERSCHULTEBECKMANN W, OBRAZTSOV V, OLSHEVSKI AG, ONOFRE A, ORAVA R, OSTERBERG K, OURAOU A, PAGANINI P, PAGANONI M, PAGES P, PALKA H, PAPADOPOULOU TD, PAPE L, PARKES C, PARODI F, PASSERI A, PEGORARO M, PERALTA L, PERNEGGER H, PERNICKA M, PERROTTA A, PETRIDOU C, PETROLINI A, PHILLIPS HT, PIANA G, PIERRE P, PIMENTA M, PLASZCZYNSKI S, PODOBRIN O, POL ME, POLOK G, POROPAT P, POZDNIAKOV V, PREST M, 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, RENTON PB, RESVANIS LK, RICHARD F, RICHARDSON J, RIDKY J, RINAUDO G, RIPP I, ROMERO A, RONCAGLIOLO I, RONCHESE P, ROOS L, ROSENBERG EI, ROSSO E, ROUDEAU P, ROVELLI T, RUCKSTUHL W, RUHLMANNKLEIDER V, RUIZ A, SAARIKKO H, SACQUIN Y, SADOVSKY A, SAJOT G, SALT J, SANCHEZ J, SANNINO M, SCHNEIDER H, SCHYNS MAE, SCIOLLA G, SCURI F, SEDYKH Y, SEGAR AM, SEITZ A, SEKULIN R, SHELLARD RC, SICCAMA I, SIEGRIST P, SIMONETTI S, SIMONETTO F, SISAKIAN AN, SITAR B, SKAALI TB, SMADJA G, SMIRNOV N, SMIRNOVA O, SMITH GR, SOKOLOV A, SOLOVYANOV O, SOSNOWSKI R, SOUZASANTOS D, SPASSOV T, SPIRITI E, SPONHOLZ P, SQUARCIA S, STANESCU C, STAPNES S, STAVITSKI I, STEPANIAK K, STICHELBAUT F, STOCCHI A, STRAUSS J, STRUB R, STUGU B, SZCZEKOWSKI M, SZEPTYCKA M, TABARELLI T, TAVERNET JP, TCHIKILEV O, TILQUIN A, TIMMERMANS J, TKATCHEV LG, TODOROV T, TOET DZ, TOMARADZE A, TOME B, TORTORA L, TRANSTROMER G, TREILLE D, TRISCHUK W, TRISTRAM G, TROMBINI A, TRONCON C, TSIROU A, TURLUER ML, TYAPKIN IA, TYNDEL M, TZAMARIAS S, UEBERSCHAER B, ULLALAND O, UVAROV V, VALENTI G, VALAZZA E, VANDERVELDE C, VANAPELDOORN GW, VANDAM P, VANDONINCK WL, VANELDIK J, VASSILOPOULOS N, VEGNI G, VENTURA L, VENUS W, VERBEURE F, VERLATO M, VERTOGRADOV LS, VILANOVA D, VINCENT P, VITALE L, VLASOV E, VODOPYANOV AS, VRBA V, WAHLEN H, WALCK C, WEIERSTALL M, WEILHAMMER P, WETHERELL AM, WICKE D, WICKENS JH, WIELERS M, WILKINSON GR, WILLIAMS WSC, WINTER M, WITEK M, WOSCHNAGG K, YIP K, YUSHCHENKO O, ZACH F, ZACHARATOU C, ZALEWSKA A, ZALEWSKI P, ZAVRTANIK D, ZEVGOLATAKOS E, ZIMIN NI, ZITO M, ZONTAR D, ZUBERI R, ZUCCHELLI GC and ZUMERLE G

Abstract

Charmless hadronic decays of beauty mesons have been searched for using the data collected with the DELPHI detector at the LEP collider. Several two, three and four-body decay modes have been investigated. Particle identification was used to distinguish the final states with protons, kaons and pious. Three candidate events selected in two-body decay modes are interpreted as evidence for charmless B decays. No excess has been found in higher multiplicity modes and improved upper limits for some of the branching ratios are given

Publisher: 'Elsevier BV'
Year: 1995
DOI identifier: 10.1016/0370-2693(95)00877-N
OAI identifier: oai:air.uniud.it:11390/884295
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