From approximately 3 million hadronic decays of Z bosons recorded with the aleph detector at lep, a sample of 410 ± 32 View the MathML source candidates is selected, where ℓ is either an electron or a muon. The differential decay rate View the MathML source from this sample is fitted, yielding a value for the product of the CKM matrix element |Vcb| and the normalisation of the decay form factor at the point of zero recoil of the D∗+ meson View the MathML source(ω = 1)|Vcb| = (31.4 ± 2.3stat ± 2.5syst) × 10−3. A value for |Vcb| is extracted using theoretical calculations of the form factor normalisation, with the result |Vcb| = (34.5 ± 2.5stat ± 2.7syst ± 1.5theory) × 10−3. From the integrated s the measured branching fraction is View the MathML source%.
A measurement of |Vcb| from B0 --> D*+- l νl / D Buskulic;D Casper;I De Bonis;D Decamp;P Ghez;C Goy;J.-P Lees;A Lucotte;M.-N Minard;P Odier;B Pietrzyk;F Ariztizabal;M Chmeissani;J.M Crespo;I Efthymiopoulos;E Fernandez;M Fernandez-Bosman;V Gaitan;Ll Garrido;M Martinez;S Orteu;A Pacheco;C Padilla;F Palla;A Pascual;J.A Perlas;F Sanchez;F Teubert;A Colaleo;D Creanza;M de Palma;A Farilla;G Gelao;M Girone;G Iaselli;G Maggi;M Maggi;N Marinelli;S Natali;S Nuzzo;A Ranieri;G Raso;F Romano;F Ruggieri;G Selvaggi;L Silvestris;P Tempesta;G Zito;X Huang;J Lin;Q Ouyang;T Wang;Y Xie;R Xu;S Xue;J Zhang;L Zhang;W Zhao;G Bonvicini;D.G Cassel;M Cattaneo;P Comas;P Coyle;H Drevermann;A Engelhardt;R.W Forty;M Frank;R Hagelberg;J Harvey;R Jacobsen;P Janot;B Jost;J Knobloch;I Lehraus;C Markou;E.B Martin;P Mato;H Meinhard;A Minten;R Miquel;K Moffeit;T Oest;P Palazzi;J.R Pater;J.-F Pusztaszeri;F Ranjard;P Rensing;L Rolandi;D Schlatter;M Schmelling;O Schneider;W Tejessy;I.R Tomalin;A Venturi;H Wachsmuth;W Wiedenmann;T Wildish;W Witzeling;J Wotschack;Z Ajaltouni;M Bardadin-Otwinowska;A Barres;C Boyer;A Falvard;P Gay;C Guicheney;P Henrard;J Jousset;B Michel;S Monteil;J-C Montret;D Pallin;P Perret;F Podlyski;J Proriol;J.-M Rossignol;F Saadi;T Fearnley;J.B Hansen;J.D Hansen;J.R Hansen;P.H Hansen;B.S Nilsson;A Kyriakis;E Simopoulou;I Siotis;A Vayaki;K Zachariadou;A Blondel;G Bonneaud;J.C Brient;P Bourdon;L Passalacqua;A Rougé;M Rumpf;R Tanaka;A Valassi;M Verderi;H Videau;D.J Candlin;M.I Parsons;E Focardi;G Parrini;M Corden;M Delfino;C Georgiopoulos;D.E Jaffe;A Antonelli;G Bencivenni;G Bologna;F Bossi;P Campana;G Capon;V Chiarella;G Felici;P Laurelli;G Mannocchi;F Murtas;G.P Murtas;M Pepe-Altarelli;S.J Dorris;A.W Halley;I ten Have;I.G Knowles;J.G Lynch;W.T Morton;V O'Shea;C Raine;P Reeves;J.M Scarr;K Smith;M.G Smith;A.S Thompson;F Thomson;S Thorn;R.M Turnbull;U Becker;O Braun;C Geweniger;G Graefe;P Hanke;V Hepp;E.E Kluge;A Putzer;B Rensch;M Schmidt;J Sommer;H Stenzel;K Tittel;S Werner;M Wunsch;R Beuselinck;D.M Binnie;W Cameron;D.J Colling;P.J Dornan;N Konstantinidis;L Moneta;A Moutoussi;J Nash;G San Martin;J.K Sedgbeer;A.M Stacey;G Dissertori;P Girtler;E Kneringer;D Kuhn;G Rudolph;C.K Bowdery;T.J Brodbeck;P Colrain;G Crawford;A.J Finch;F Foster;G Hughes;T Sloan;E.P Whelan;M.I Williams;A Galla;A.M Greene;K Kleinknecht;G Quast;J Raab;B Renk;H.-G Sander;R Wanke;C Zeitnitz;J.J Aubert;A.M Bencheikh;C Benchouk;A Bonissent;G Bujosa;D Calvet;J Carr;C Diaconu;F Etienne;M Thulasidas;D Nicod;P Payre;D Rousseau;M Talby;I Abt;R Assmann;C Bauer;W Blum;D Brown;H Dietl;F Dydak;G Ganis;C Gotzhein;K Jakobs;H Kroha;G Lütjens;G Lutz;W Männer;H.-G Moser;R Richter;A Rosado-Schlosser;S Schael;R Settles;H Seywerd;U Stierlin;R.St Denis;G Wolf;R Alemany;J Boucrot;O Callot;A Cordier;F Courault;M Davier;L Duflot;J.-F Grivaz;Ph Heusse;M Jacquet;D.W Kim;F Le Diberder;J Lefrançois;A.-M Lutz;G Musolino;I Nikolic;H.J Park;I.C Park;M.-H Schune;S Simion;J.-J Veillet;I Videau;D Abbaneo;P Azzurri;G Bagliesi;G Batignani;S Bettarini;C Bozzi;G Calderini;M Carpinelli;M.A Ciocci;V Ciulli;R Dell'Orso;R Fantechi;I Ferrante;L Foà;F Forti;A Giassi;M.A Giorgi;A Gregorio;F Ligabue;A Lusiani;P.S Marrocchesi;A Messineo;G Rizzo;G Sanguinetti;A Sciabà;P Spagnolo;J Steinberger;R Tenchini;G Tonelli;G Triggiani;C Vannini;P.G Verdini;J Walsh;A.P Betteridge;G.A Blair;L.M Bryant;F Cerutti;Y Gao;M.G Green;D.L Johnson;T Medcalf;Ll.M Mir;P Perrodo;J.A Strong;V Bertin;D.R Botterill;R.W Clifft;T.R Edgecock;S Haywood;M Edwards;P Maley;P.R Norton;J.C Thompson;B Bloch-Devaux;P Colas;H Duarte;S Emery;W Kozanecki;E Lançon;M.C Lemaire;E Locci;B Marx;P Perez;J Rander;J.-F Renardy;A Rosowsky;A Roussarie;J.-P Schuller;J Schwindling;D Si Mohand;A Trabelsi;B Vallage;R.P Johnson;H.Y Kim;A.M Litke;M.A McNeil;G Taylor;A Beddall;C.N Booth;R Boswell;S Cartwright;F Combley;I Dawson;A Koksal;M Letho;W.M Newton;C Rankin;L.F Thompson;A Böhrer;S Brandt;G Cowan;E Feigl;C Grupen;G Lutters;J Minguet-Rodriguez;F Rivera;P Saraiva;L Smolik;F Stephan;P van Gemmeren;M Apollonio;L Bosisio;R Della Marina;G Giannini;B Gobbo;F Ragusa;J Rothberg;S Wasserbaech;S.R Armstrong;L Bellantoni;P Elmer;Z Feng;D.P.S Ferguson;Y.S Gao;S González;J Grahl;J.L Harton;O.J Hayes;H Hu;P.A McNamara;J.M Nachtman;W Orejudos;Y.B Pan;Y Saadi;M Schmitt;I.J Scott;V Sharma;J.D Turk;A.M Walsh;Sau Lan Wu;X Wu;J.M Yamartino;M Zheng;G Zobernig. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 359:(1995), pp. 236-248. [10.1016/0370-2693(95)01021-H]
A measurement of |Vcb| from B0 --> D*+- l νl
FOCARDI, ETTORE;CIULLI, VITALIANO;
1995
Abstract
From approximately 3 million hadronic decays of Z bosons recorded with the aleph detector at lep, a sample of 410 ± 32 View the MathML source candidates is selected, where ℓ is either an electron or a muon. The differential decay rate View the MathML source from this sample is fitted, yielding a value for the product of the CKM matrix element |Vcb| and the normalisation of the decay form factor at the point of zero recoil of the D∗+ meson View the MathML source(ω = 1)|Vcb| = (31.4 ± 2.3stat ± 2.5syst) × 10−3. A value for |Vcb| is extracted using theoretical calculations of the form factor normalisation, with the result |Vcb| = (34.5 ± 2.5stat ± 2.7syst ± 1.5theory) × 10−3. From the integrated s the measured branching fraction is View the MathML source%.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.