B-ASTERISK PRODUCTION IN Z-DECAYS

Authors
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 AUGUSTIN JE AUGUSTINUS A BAILLON P BAMBADE P BARAO F BARATE R 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 BOUQUET B BOURDARIOS C BOWCOCK TJV BOZZO M BRANCHINI P BRAND KD BRENNER RA BRICMAN C BRILLAULT L BROWN RCA BRUCKMAN P BRUNET JM BUGGE L BURAN T 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 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 M 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 JOANNOU 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 KORCYL K 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 LAPIN V 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 LOPEZ JM LOPEZFERNANDEZ A AGUERA MAL LOUKAS D LUTZ P LYONS L MACNAUGHTON J MAEHLUM G MAIO A MALYCHEV V MARCO J MARECHAL B MARGONI M MARIN JC MARIOTTI C MARKOU A MARON T MARTINEZRIVERO C MARTINEZVIDAL F GARCIA SM 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 MJOERNMARK U MOA T MOELLER R MOENIG K MONGE MR MORETTINI P MUELLER H MUNDIM L MITAROFF WA 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 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 F 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 RONJIN V 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 SOSNOWSKI R SOUZASANTOS D SPASSOV T SPIRITI E SQUARCIA S STAECK H 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 UEBERSCHAER S ULLALAND O UVAROV V VALENTI G VALLAZZA E VELDE CV VANAPELDOORN GW VANDAM P VANDONINCK WK VANELDIK J VASSILOPOULOS N
Citation
P. Abreu et al., B-ASTERISK PRODUCTION IN Z-DECAYS, Zeitschrift fur Physik. C, Particles and fields, 68(3), 1995, pp. 353-362
Citations number
23
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
68
Issue
3
Year of publication
1995
Pages
353 - 362
Database
ISI
SICI code
0170-9739(1995)68:3<353:BPIZ>2.0.ZU;2-P
Abstract
The decay B --> B gamma has been observed with the DELPHI detector at LEP, where the B meson is produced in Z boson decays, The combinatio n of inclusively reconstructed B mesons with well-measured converted p hotons yields a measurement of the flavour-averaged B - B mass differ ence of 45.5 +/- 0.3 (stat.) +/- 0.8 (syst.) MeV/c(2). 95% confidence level upper limits at 6 MeV/c(2) are placed on both the isospin (i.e, B+-B-0) and the B-s-B-ud splitting of the mass difference, The product ion ratio of B to B mesons in Z decays is measured to be 0.72 +/- 0.0 3 (stat.) +/- 0.06 (syst.). Limits on the production cross-section of other hypothetical excited B hadron states decaying radiatively are es tablished. The differential B cross section has been measured to be i n good agreement with the average b fragmentation, yielding an average fractional B energy of [x(E)] = 0.695 +/- 0.009 (stat.) +/- 0.013 (s yst.). From the decay angular distribution the relative contribution o f longitudinal B polarisation states is measured to be sigma(L)/(sigm a(L) + sigma(T)) = 0.32 +/- 0.04 (stat.) +/- 0.03 (syst.).