A PRECISION-MEASUREMENT OF THE AVERAGE LIFETIME OF B HADRONS

Authors
ABREU P ADAM W ADYE T AGASI E ALEKSAN R ALEKSEEV GD ALLPORT P ALMEHED S ALMEIDA FML ALVSVAAG SJ AMALDI U ANDREAZZA A ANTILOGUS P APEL WD APSIMON RJ ARNOUD Y ASMAN B AUGUSTIN JE 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 BECKS KH BEGALLI M BEILLIERE P BELOKOPYTOV Y BELTRAN P BENVENUTI AC BERGGREN M BERTRAND D BIANCHI F BIGI M BILENKY MS BILLOIR P BJARNE J BLOCH D BLOCKI J BLYTH S BOCCI V BOGOLUBOV PN BOLOGNESE T BONESINI M BONIVENTO W BOOTH PSL BORISOV G BOSIO C BOSTJANCIC B BOSWORTH S BOTNER O BOUQUET B BOURDARIOS C BOWCOCK TJV BOZZO M BRAIBANT S BRANCHINI P BRAND KD BRENNER RA BRIAND H BRICMAN C BRILLAULT L BROWN RCA BRUNET JM BUGGE L BURAN T BUYS A BUYTAERT JAMA CACCIA M CALVI M ROZAS AJC CAMPION R CAMPORESI T CANALE V CANKOCAK K CAO F CARENA F CARRILHO P CARROLL L CASES R CASO C GIMENEZ MVC CATTAI A CAVALLO FR CERRITO L CHABAUD V CHAN A CHARPENTIER P CHAUVEAU J CHECCHIA P CHELKOV GA CHEVALIER L CHLIAPNIKOV P CHOROWICZ V CHRIN JTM CINDRO V COLLINS P CONTRERAS JL CONTRI R CORTINA E COSME G COUCHOT F CRAWLEY HB CRENNELL D CROSETTI G MAESTRO JC CZELLAR S DAHLJENSEN E DAHM J DALMAGNE B DAM M DAMGAARD G DAUBIE E DAUM A DAUNCEY PD DAVENPORT M DAVIES J DASILVA W DEFOIX C DELPIERRE P DEMARIA N DEANGELIS A DEBOECK H DEBOER W DEBRABANDERE S DECLERCQ C LASO MDMD DELAVAISSIERE C DELOTTO B DEMIN A DEPAULA L DIJKSTRA H DICIACCIO L DJAMA F DOLBEAU J DONSZELMANN M DOROBA K DRACOS M DREES J DRIS M DUFOUR Y DUPONT F EDSALL D EEK LO EHRET R EKELOF T EKSPONG G PEISERT AE ELSING M ENGEL JP ERSHAIDAT N SANTO ME FALALEEV V FASSOULIOTIS D FEINDT M FENYUK A FERRER A FILIPAS TA FIRESTONE A FOETH H FOKITIS E FONTANELLI F FORBES KAJ FORMENTI F FOUSSET JL FRANCON S FRANEK B FRENKIEL P FRIES DC FRODESEN AG FRUHWIRTH R FULDAQUENZER F FURSTENAU H FUSTER J GAMBA D GANDELMAN M GARCIA C GARCIA J GASPAR C GASPARINI U GAVILLET P GAZIS EN GERBER JP GIACOMELLI P GILLESPIE D GOKIELI R GOLOB B GOLOVATYUK VM CADENAS JJGY GOPAL G GORN L GORSKI M GRACCO V GRARD F GRAZIANI E GROSDIDIER G GROSSETETE B GUNNARSSON P GUY J HAEDINGER U HAHN F HAHN M HAHN S HAIDER S HAJDUK Z HAKANSSON A HALLGREN A HAMACHER K DEMONCHENAULT GH HAO W HARRIS FJ HEDBERG V HENRIQUES R HERNANDEZ JJ HERNANDO JA HERQUET P HERR H HESSING TL HIGGINS CO HIGON E HILKE HJ HILL TS HODGSON SD HOLMGREN SO HOLT PJ HOLTHUIZEN D HONORE PF HOULDEN M HRUBEC J HUET K HULTQVIST K IOANNOU P IVERSEN PS JACKSON JN JACOBSSON R JALOCHA P JARLSKOG G JARRY P JEANMARIE B JOHANSSON EK JONKER M JONSSON L 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 KOCHMEHRIN A KOEHNE JH KOENE B KOKKINIAS P KORATZINOS M KORCYL K KORYTOV AV KOSTIOUKHINE V KOURKOUMELIS C KOUZNETSOV O KRAMER PH KRAMMER M KREUTER C KROLIKOWSKI J KRONKVIST I KRUPINSKI W KULKA K KURVINEN K LACASTA C LAMBROPOULOS C LAMSA JW LANCERI L LANGEFELD P LAPIN V LAST I LAUGIER JP LAUHAKANGAS R LEDER G LEDROIT F LEITNER R LEMOIGNE Y LEMONNE J LENZEN G LEPELTIER V LESIAK T LEVY JM LIEB E LIKO D LINDNER R LIPNIACKA A LIPPI I LOERSTAD B LOKAJICEK M LOKEN JG LOPEZFERNANDEZ A AGUERA MAL LOS M LOUKAS D LOZANO JJ LUTZ P LYONS L MAEHLUM G MAILLARD J MAIO A MALTEZOS A MANDL F MARCO J MARECHAL B MARGONI M MARIN JC MARIOTTI C MARKOU A MARON T MARTI S MARTINEZRIVERO C MARTINEZVIDAL F MATORRAS F MATTEUZZI C MATTHIAE G MAZZUCATO M MCCUBBIN M MCKAY R MCNULTY R MEDBO J MERONI C MEYER WT MICHELOTTO M MIGLIORE E MIKULEC I MIRABITO L MITAROFF WA MITSELMAKHER GV MJOERNMARK U MOA T MOELLER R MOENIG K MONGE MR MORETTINI P MUELLER H MURRAY WJ MURYN B MYATT G NARAGHI F NAVARRIA FL NEGRI P NEMECEK S NEUMANN W NEUMEISTER N NICOLAIDOU R NIELSEN BS NIKOLAENKO V NILSEN PES NISS P NOMEROTSKI A NOVAK M OBRAZTSOV V OLSHEVSKI AG ORAVA R OSTANKOV A OSTERBERG K OURAOU A PAGANINI P PAGANONI M PAIN R PALKA H PAPADOPOULOU TD PAPE L PARODI F PASSERI A PEGORARO M PENNANEN J PERALTA L PEREVOZCHIKOV V PERNEGGER H PERROTTA A PETRIDOU C PETROLINI A PIANA G PIERRE F PIMENTA M PLASZCZYNSKI S PODOBRIN O POL ME POLOK G POROPAT P POZDNIAKOV V PREST M PRIVITERA P PULLIA A RADOJICIC D RAGAZZI S RAHMANI H 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 ROMERO A RONCAGLIOLO I RONCHESE P ROSENBERG EI ROSSO E ROUDEAU P ROVELLI T RUCKSTUHL W RUHLMANNKLEIDER V RUIZ A RYBICKI K SAARIKKO H SACQUIN Y SAJOT G SALT J SANCHEZ J SANNINO M SCHAEL S SCHNEIDER H SCHYNS MAE SCIOLLA G SCURI F SEGAR AM SEITZ A SEKULIN R SEUFERT R SHELLARD RC SICCAMA I SIEGRIST P SIMONETTI S SIMONETTO F SISAKIAN AN SKJEVLING G SMADJA G SMIRNOVA O SMITH GR SOSNOWSKI R SOUZASANTOS D SPASSOV T SPIRITI E SQUARCIA S STAECK H STANESCU C STAPNES S STAVROPOULOS G STEPANIAK K STICHELBAUT F STOCCHI A STRAUSS J STRAVER J STRUB R STUGU B SZCZEKOWSKI M SZEPTYCKA M SZYMANSKI P TABARELLI T TCHIKILEV O THEODOSIOU GE THOME Z TILQUIN A TIMMERMANS J TIMOFEEV VG TKATCHEV LG TODOROV T TOET DZ TOMARADZE A TOME B TORASSA E TORTORA L TREILLE D TRISCHUK W TRISTRAM G TRONCON C TSIROU A TSYGANOV EN TURALA M TURLUER ML TUUVA T
Citation
P. Abreu et al., A PRECISION-MEASUREMENT OF THE AVERAGE LIFETIME OF B HADRONS, Zeitschrift fur Physik. C, Particles and fields, 63(1), 1994, pp. 3-15
Citations number
14
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
63
Issue
1
Year of publication
1994
Pages
3 - 15
Database
ISI
SICI code
0170-9739(1994)63:1<3:APOTAL>2.0.ZU;2-U
Abstract
The average lifetime of B hadrons was measured using data collected wi th the DELPHI detector at the LEP collider during 1991 and 1992. The m easurement was performed using two different analyses. The first metho d was an improvement on a previous technique, which used charged parti cle impact parameter distributions. This analysis measured an average lifetime for B hadrons of tau(B) = 1.542 +/- 0.021 (stat.) +/- 0.045 ( syst.) ps. (1) The second method was based on a new technique, which u sed inclusively reconstructed secondary vertices to measure tau(B) = 1 .599 +/- 0.014 (stat.) +/- 0.035 (syst.) ps. (2) Taking into account b oth the statistical and systematic correlations, the results of these two methods were combined to give an average lifetime for B hadrons of tau(B) = 1.582 +/- 0.012 (stat.) +/- 0.032 (syst.) ps. (3)