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Titolo:
STUDY OF PHI(1020), D-ASTERISK+ - AND B-ASTERISK SPIN ALIGNMENT IN HADRONIC Z(0) DECAYS/
Autore:
ACKERSTAFF K; ALEXANDER G; ALLISON J; ALTEKAMP N; AMETEWEE K; ANDERSON KJ; ANDERSON S; ARCELLI S; ASAI S; AXEN D; AZUELOS G; BALL AH; BARBERIO E; BARLOW RJ; BARTOLDUS R; BATLEY JR; BECHTLUFT J; BEESTON C; BEHNKE T; BELL AN; BELL KW; BELLA G; BENTVELSEN S; BERLICH P; BETHKE S; BIEBEL O; BIGUZZI A; BIRD SD; BLOBEL B; BLOODWORTH IJ; BLOOMER JE; BOBINSKI M; BOCK P; BOSCH HM; BOUTEMEUR M; BOUWENS BT; BRAIBANT S; BROWN RM; BURCKHART HJ; BURGARD C; BURGIN R; CAPILUPPI P; CARNEGIE RK; CARTER AA; CARTER JR; CHANG CY; CHARLTON DG; CHRISMAN D; CLARKE PEL; CLOWES SG; COHEN I; CONBOY JE; COOKE OC; CUFFIANI M; DADO S; DALLAPICCOLA C; DALLAVALLE GM; DEJONG S; DELPOZO LA; DESCH K; DIXIT MS; SILVA EDC; DOUCET M; DUCHOVNI E; DUCKECK G; DUERDOTH IP; EATOUGH D; EDWARDS JEG; ESTABROOKS PG; EVANS HG; EVANS M; FABBRI F; FANTI M; FATH P; FAUST AA; FIEDLER F; FIERRO M; FISCHER HM; FOLMAN R; FONG DG; FOUCHER M; FURTJES A; GAGNON P; GAIDOT A; GARY JW; GASCON J; GASCONSHOTKIN SM; GEDDES NI; GEICHGIMBEL C; GENTIT FX; GERALIS T; GIACOMELLI G; GIACOMELLI P; GIACOMELLI R; GIBSON V; GIBSON WR; GINGRICH DM; GLENZINSKI D; GOLDBERG J; GOODRICK MJ; GORN W; GRANDI C; GROSS E; GRUNHAUS J; GRUWE M; HAJDU C; HANSON GG; HANSROUL M; HAPKE M; HARGROVE CK; HART PA; HARTMANN C; HAUSCHILD M; HAWKES CM; HAWKINGS R; HEMINGWAY RJ; HERNDON M; HERTEN G; HEUER RD; HILDRETH MD; HILL JC; HILLIER SJ; HILSE T; HOBSON PR; HOMER RJ; HONMA AK; HORVATH D; HOWARD R; HUGHESJONES RE; HUTCHCROFT DE; IGOKEMENES P; IMRIE DC; INGRAM MR; ISHII K; JAWAHERY A; JEFFREYS PW; JEREMIE H; JIMACK M; JOLY A; JONES CR; JONES G; JONES M; JONES RWL; JOST U; JOVANOVIC P; JUNK TR; KARLEN D; KAWAGOE K; KAWAMOTO T; KEELER RK; KELLOGG RG; KENNEDY BW; KIRK J; KLUTH S; KOBAYASHI T; KOBEL M; KOETKE DS; KOKOTT TP; KOLREP M; KOMAMIYA S; KRESS T; KRIEGER P; VONKROGH J; KYBERD P; LAFFERTY GD; LAFOUX H; LAHMANN R; LAI WP; LANSKE D; LAUBER J; LAUTENSCHLAGER SR; LAYTER JG; LAZIC D; LEE AM; LEFEBVRE E; LELLOUCH D; LETTS J; LEVINSON L; LEWIS C; LLOYD SL; LOEBINGER FK; LONG GD; LOSTY MJ; LUDWIG J; MACCHIOLO A; MACPHERSON A; MALIK A; MANNELLI M; MARCELLINI S; MARKUS C; MARTIN AJ; MARTIN JP; MARTINEZ G; MASHIMO T; MATTHEWS W; MATTIG P; MCDONALD WJ; MCKENNA J; MCKIGNEY EA; MCMAHON TJ; MCNAB AI; MCPHERSON RA; MEIJERS F; MENKE S; MERRITT FS; MES H; MEYER J; MICHELINI A; MIKENBERG G; MILLER DJ; MIR R; MOHR W; MONTANARI A; MORI T; MORII M; MULLER U; NAGAI K; NAKAMURA I; NEAL HA; NELLEN B; NIJJHAR B; NISIUS R; ONEALE SW; OAKHAM FG; ODORICI F; OGREN HO; OLDERSHAW NJ; OMORI T; OREGLIA MJ; ORITO S; PALINKAS J; PASZTOR G; PATER JR; PATRICK GN; PATT J; PEARCE MJ; PETZOLD S; PFEIFENSCHNEIDER P; PILCHER JE; PINFOLD J; PLANE DE; POFFENBERGER P; POLI B; POSTHAUS A; PRZYSIEZNIAK H; REES DL; RIGBY D; ROBERTSON S; ROBINS SA; RODNING N; RONEY JM; ROOKE A; ROS E; ROSSI AM; ROSVICK M; ROUTENBURG P; ROZEN Y; RUNGE K; RUNOLFSSON O; RUPPEL U; RUST DR; RYLKO R; SACHS K; SARKISYAN EKG; SASAKI M; SBARRA C; SCHAILE AD; SCHAILE O; SCHARF F; SCHARFFHANSEN P; SCHENK P; SCHMITT B; SCHMITT S; SCHRODER M; SCHULTZCOULON HC; SCHULZ M; SCHUMACHER M; SCHUTZ P; SCOTT WG; SHEARS TG; SHEN BC; SHEPHERDTHEMISTOCLEOUS CH; SHERWOOD P; SIROLI GP; SITTLER A; SKILLMAN A; SKUJA A; SMITH AM; SMITH TJ; SNOW GA; SOBIE R; SOLDNERREMBOLD S; SPRINGER RW; SPROSTON M; STAHL A; STEIERT M; STEPHENS K; STEUERER J; STOCKHAUSEN B; STROM D; SZYMANSKI P; TAFIROUT R; TALBOT SD; TANAKA S; TARAS P; TAREM S; THIERGEN M; THOMSON MA; VONTORNE E; TOWERS S; TRIGGER I; TSUKAMOTO T; TSUR E; TURCOT AS; TURNERWATSON MF; UTZAT P; VANKOOTEN R; VASSEUR G; VERZOCCHI M; VIKAS P; VINCTER M; VOKURKA EH; WACKERLE F; WAGNER A; WARD CP; WARD DR; WARD JJ; WATKINS PM; WATSON AT; WATSON NK; WELLS PS; WERMES N; WHITE JS; WILKENS B; WILSON GW; WILSON JA; WOLF G; WOTTON S; WYATT TR; YAMASHITA S; YEKUTIELI G; ZACEK V; ZERZION D;
Indirizzi:
UNIV BIRMINGHAM,SCH PHYS & SPACE RES BIRMINGHAM B15 2TT W MIDLANDS ENGLAND UNIV BOLOGNA,DIPARTIMENTO FIS I-40126 BOLOGNA ITALY IST NAZL FIS NUCL I-40126 BOLOGNA ITALY UNIV BONN,INST PHYS D-53115 BONN GERMANY UNIV CALIF RIVERSIDE,DEPT PHYS RIVERSIDE CA 92521 CAVENDISH LAB CAMBRIDGE CB3 0HE ENGLAND CARLETON UNIV,DEPT PHYS,OTTAWA CARLETON INST PHYS OTTAWA ON K1S 5B6 CANADA CARLETON UNIV,CTR RES PARTICLE PHYS OTTAWA ON K1S 5B6 CANADA CERN,EUROPEAN ORG PARTICLE PHYS CH-1211 GENEVA 23 SWITZERLAND UNIV CHICAGO,ENRICO FERMI INST CHICAGO IL 60637 UNIV CHICAGO,DEPT PHYS CHICAGO IL 60637 UNIV FREIBURG,FAK PHYS D-79104 FREIBURG GERMANY UNIV HEIDELBERG,INST PHYS D-69120 HEIDELBERG GERMANY INDIANA UNIV,DEPT PHYS BLOOMINGTON IN 47405 UNIV LONDON QUEEN MARY & WESTFIELD COLL LONDON E1 4NS ENGLAND RHEIN WESTFAL TH AACHEN,INST PHYS 3 D-52056 AACHEN GERMANY UNIV LONDON UNIV COLL LONDON WC1E 6BT ENGLAND UNIV MANCHESTER,SCHUSTER LAB,DEPT PHYS MANCHESTER M13 9PL LANCS ENGLAND UNIV MARYLAND,DEPT PHYS COLLEGE PK MD 20742 UNIV MONTREAL,PHYS NUCL LAB MONTREAL PQ H3C 3J7 CANADA UNIV OREGON,DEPT PHYS EUGENE OR 97403 RUTHERFORD APPLETON LAB DIDCOT OX11 0QX OXON ENGLAND CE SACLAY,CEA,DAPNIA,SPP F-91191 GIF SUR YVETTE FRANCE TECHNION ISRAEL INST TECHNOL,DEPT PHYS IL-32000 HAIFA ISRAEL TEL AVIV UNIV,DEPT PHYS & ASTRON IL-69978 TEL AVIV ISRAEL UNIV TOKYO,INT CTR ELEMENTARY PARTICLE PHYS TOKYO 113 JAPAN UNIV TOKYO,DEPT PHYS TOKYO 113 JAPAN KOBE UNIV KOBE HYOGO 657 JAPAN BRUNEL UNIV UXBRIDGE UB8 3PH MIDDX ENGLAND WEIZMANN INST SCI,DEPT PARTICLE PHYS IL-76100 REHOVOT ISRAEL UNIV HAMBURG,DESY,INST EXPT PHYS 2 D-22607 HAMBURG GERMANY UNIV VICTORIA,DEPT PHYS VICTORIA BC V8W 3P6 CANADA UNIV BRITISH COLUMBIA,DEPT PHYS VANCOUVER BC V6T 1Z1 CANADA UNIV ALBERTA,DEPT PHYS EDMONTON AB T6G 2J1 CANADA DUKE UNIV,DEPT PHYS DURHAM NC 27708 RES INST PARTICLE & NUCL PHYS H-1525 BUDAPEST HUNGARY INST NUCL RES H-4001 DEBRECEN HUNGARY UNIV MUNICH,SEKT PHYS D-85748 GARCHING GERMANY TRIUMF VANCOUVER BC V6T 2A3 CANADA LAJOS KOSSUTH UNIV,DEPT EXPT PHYS DEBRECEN HUNGARY
Titolo Testata:
Zeitschrift fur Physik. C, Particles and fields
fascicolo: 3, volume: 74, anno: 1997,
pagine: 437 - 449
SICI:
0170-9739(1997)74:3<437:SOPD-A>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
LUND MONTE-CARLO; QUARK FRAGMENTATION; MICROVERTEX DETECTOR; JET FRAGMENTATION; E+E ANNIHILATION; MESON PRODUCTION; D-STAR; POLARIZATION; LEP; DEPENDENCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
57
Recensione:
Indirizzi per estratti:
Citazione:
K. Ackerstaff et al., "STUDY OF PHI(1020), D-ASTERISK+ - AND B-ASTERISK SPIN ALIGNMENT IN HADRONIC Z(0) DECAYS/", Zeitschrift fur Physik. C, Particles and fields, 74(3), 1997, pp. 437-449

Abstract

Measurements of helicity density matrix elements have been made for the phi(1020), D(+/-) and B* vector mesons in multihadronic Z(0) decays in the OPAL experiment at LEP, Results for inclusive phi produced with high energy show evidence for production preferentially in the helicity zero state, with rho(00) = 0.54 +/- 0.08, compared to the value of 1/3 expected for no spin alignment. The corresponding element for the D(+/-) has a value of 0.40 +/- 0.02, also suggesting a deviation from 1/3. The B result, with rho(00) = 0.36 +/- 0.09, is consistent with no spin alignment. Off-diagonal elements have been measured for the phi and D mesons; for the D* the element Re rho(1-1) is non-zero, indicating non-independent fragmentation of the primary quarks.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 01:17:46