Measurement of the B0 and B− meson lifetimes

R. Barate; D. Decamp; P. Ghez; C. Goy; J.-P. Lees; E. Merle; M.-N. Minard; B. Pietrzyk; S. Bravo; M.P. Casado; M. Chmeissani; J.M. Crespo; E. Fernandez; M. Fernandez-Bosman; Ll. Garrido; E. Graugés; M. Martinez; G. Merino; R. Miquel; Ll.M. Mir; A. Pacheco; H. Ruiz; A. Colaleo; D. Creanza; M. de Palma; G. Iaselli; G. Maggi; M. Maggi; S. Nuzzo; A. Ranieri; G. Raso; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; A. Tricomi; G. Zito; X. Huang; J. Lin; Q. Ouyang; T. Wang; Y. Xie; R. Xu; S. Xue; J. Zhang; L. Zhang; W. Zhao; D. Abbaneo; G. Boix; O. Buchmüller; M. Cattaneo; F. Cerutti; G. Dissertori; H. Drevermann; R.W. Forty; M. Frank; T.C. Greening; J.B. Hansen; J. Harvey; P. Janot; B. Jost; I. Lehraus; P. Mato; A. Minten; A. Moutoussi; F. Ranjard; L. Rolandi; D. Schlatter; M. Schmitt; O. Schneider; P. Spagnolo; W. Tejessy; F. Teubert; E. Tournefier; A.E. Wright; Z. Ajaltouni; F. Badaud; G. Chazelle; O. Deschamps; A. Falvard; P. Gay; C. Guicheney; P. Henrard; J. Jousset; B. Michel; S. Monteil; J.-C. Montret; D. Pallin; P. Perret; F. Podlyski; P.H. Hansen; B.S. Nilsson; A. Wäänänen; G. Daskalakis; A. Kyriakis; C. Markou; E. Simopoulou; A. Vayaki; A. Blondel; G. Bonneaud; J.-C. Brient; A. Rougé; M. Rumpf; M. Swynghedauw; M. Verderi; H. Videau; E. Focardi; G. Parrini; K. Zachariadou; A. Antonelli; G. Bencivenni; G. Bologna; F. Bossi; P. Campana; G. Capon; V. Chiarella; P. Laurelli; G. Mannocchi; F. Murtas; G.P. Murtas; L. Passalacqua; M. Pepe-Altarelli; A.W. Halley; J.G. Lynch; P. Negus; V. O'Shea; C. Raine; P. Teixeira-Dias; A.S. Thompson; R. Cavanaugh; S. Dhamotharan; C. Geweniger; P. Hanke; G. Hansper; V. Hepp; E.E. Kluge; A. Putzer; J. Sommer; K. Tittel; S. Werner; M. Wunsch; R. Beuselinck; D.M. Binnie; W. Cameron; P.J. Dornan; M. Girone; N. Marinelli; J.K. Sedgbeer; J.C. Thompson; E. Thomson; V.M. Ghete; P. Girtler; E. Kneringer; D. Kuhn; G. Rudolph; C.K. Bowdery; P.G. Buck; A.J. Finch; F. Foster; G. Hughes; R.W.L. Jones; N.A. Robertson; I. Giehl; K. Jakobs; K. Kleinknecht; G. Quast; B. Renk; E. Rohne; H.-G. Sander; H. Wachsmuth; C. Zeitnitz; A. Bonissent; J. Carr; P. Coyle; O. Leroy; P. Payre; D. Rousseau; M. Talby; M. Aleppo; F. Ragusa; H. Dietl; G. Ganis; A. Heister; K. Hüttmann; G. Lütjens; C. Mannert; W. Männer; H.-G. Moser; S. Schael; R. Settles; H. Stenzel; W. Wiedenmann; G. Wolf; P. Azzurri; J. Boucrot; O. Callot; S. Chen; A. Cordier; M. Davier; L. Duflot; J.-F. Grivaz; Ph. Heusse; A. Jacholkowska; F. Le Diberder; J. Lefrançois; A.-M. Lutz; M.-H. Schune; J.-J. Veillet; I. Videau; C. Yuan; D. Zerwas; G. Bagliesi; T. Boccali; G. Calderini; V. Ciulli; L. Foà; A. Giassi; F. Ligabue; A. Messineo; F. Palla; G. Rizzo; G. Sanguinetti; A. Sciabà; G. Sguazzoni; R. Tenchini; A. Venturi; P.G. Verdini; G.A. Blair; G.;R. Barate;D. Decamp;P. Ghez;C. Goy;J.-P. Lees;E. Merle;M.-N. Minard;B. Pietrzyk;S. Bravo;M.P. Casado;M. Chmeissani;J.M. Crespo;E. Fernandez;M. Fernandez-Bosman;Ll. Garrido;E. Graugés;M. Martinez;G. Merino;R. Miquel;Ll.M. Mir;A. Pacheco;H. Ruiz;A. Colaleo;D. Creanza;M. de Palma;G. Iaselli;G. Maggi;M. Maggi;S. Nuzzo;A. Ranieri;G. Raso;F. Ruggieri;G. Selvaggi;L. Silvestris;P. Tempesta;A. Tricomi;G. Zito;X. Huang;J. Lin;Q. Ouyang;T. Wang;Y. Xie;R. Xu;S. Xue;J. Zhang;L. Zhang;W. Zhao;D. Abbaneo;G. Boix;O. Buchmüller;M. Cattaneo;F. Cerutti;G. Dissertori;H. Drevermann;R.W. Forty;M. Frank;T.C. Greening;J.B. Hansen;J. Harvey;P. Janot;B. Jost;I. Lehraus;P. Mato;A. Minten;A. Moutoussi;F. Ranjard;L. Rolandi;D. Schlatter;M. Schmitt;O. Schneider;P. Spagnolo;W. Tejessy;F. Teubert;E. Tournefier;A.E. Wright;Z. Ajaltouni;F. Badaud;G. Chazelle;O. Deschamps;A. Falvard;P. Gay;C. Guicheney;P. Henrard;J. Jousset;B. Michel;S. Monteil;J.-C. Montret;D. Pallin;P. Perret;F. Podlyski;P.H. Hansen;B.S. Nilsson;A. Wäänänen;G. Daskalakis;A. Kyriakis;C. Markou;E. Simopoulou;A. Vayaki;A. Blondel;G. Bonneaud;J.-C. Brient;A. Rougé;M. Rumpf;M. Swynghedauw;M. Verderi;H. Videau;E. Focardi;G. Parrini;K. Zachariadou;A. Antonelli;G. Bencivenni;G. Bologna;F. Bossi;P. Campana;G. Capon;V. Chiarella;P. Laurelli;G. Mannocchi;F. Murtas;G.P. Murtas;L. Passalacqua;M. Pepe-Altarelli;A.W. Halley;J.G. Lynch;P. Negus;V. O'Shea;C. Raine;P. Teixeira-Dias;A.S. Thompson;R. Cavanaugh;S. Dhamotharan;C. Geweniger;P. Hanke;G. Hansper;V. Hepp;E.E. Kluge;A. Putzer;J. Sommer;K. Tittel;S. Werner;M. Wunsch;R. Beuselinck;D.M. Binnie;W. Cameron;P.J. Dornan;M. Girone;N. Marinelli;J.K. Sedgbeer;J.C. Thompson;E. Thomson;V.M. Ghete;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;C.K. Bowdery;P.G. Buck;A.J. Finch;F. Foster;G. Hughes;R.W.L. Jones;N.A. Robertson;I. Giehl;K. Jakobs;K. Kleinknecht;G. Quast;B. Renk;E. Rohne;H.-G. Sander;H. Wachsmuth;C. Zeitnitz;A. Bonissent;J. Carr;P. Coyle;O. Leroy;P. Payre;D. Rousseau;M. Talby;M. Aleppo;F. Ragusa;H. Dietl;G. Ganis;A. Heister;K. Hüttmann;G. Lütjens;C. Mannert;W. Männer;H.-G. Moser;S. Schael;R. Settles;H. Stenzel;W. Wiedenmann;G. Wolf;P. Azzurri;J. Boucrot;O. Callot;S. Chen;A. Cordier;M. Davier;L. Duflot;J.-F. Grivaz;Ph. Heusse;A. Jacholkowska;F. Le Diberder;J. Lefrançois;A.-M. Lutz;M.-H. Schune;J.-J. Veillet;I. Videau;C. Yuan;D. Zerwas;G. Bagliesi;T. Boccali;G. Calderini;V. Ciulli;L. Foà;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Rizzo;G. Sanguinetti;A. Sciabà;G. Sguazzoni;R. Tenchini;A. Venturi;P.G. Verdini;G.A. Blair;G.;

doi:10.1016/s0370-2693(00)01093-5

Measurement of the B0 and B− meson lifetimes

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ID: 267306

2000

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Abstract

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The lifetimes of the B0 and B− mesons are measured using a sample of about four million hadronic Z decays collected from 1991 to 1995 with the Aleph detector at LEP. The data sample has been recently reprocessed, achieving a substantial improvement in the tracking performance. Semileptonic decays of B0 and B− mesons are partially reconstructed by identifying events containing a lepton with an associated D★+ or D0 meson. The proper time of the B meson is estimated from the measured decay length and the momentum of the D-lepton system. A fit to the proper time of 1880 D★+ℓ− and 2856 D0ℓ− candidates yields the following results: τB0=1.518±0.053±0.034 ps, τB−=1.648±0.049±0.035 ps, τB−/τB0=1.085±0.059±0.018.

Reference Key	blair,g.2000physicsmeasurement Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors	R. Barate,D. Decamp,P. Ghez,C. Goy,J.-P. Lees,E. Merle,M.-N. Minard,B. Pietrzyk,S. Bravo,M.P. Casado,M. Chmeissani,J.M. Crespo,E. Fernandez,M. Fernandez-Bosman,Ll. Garrido,E. Graugés,M. Martinez,G. Merino,R. Miquel,Ll.M. Mir,A. Pacheco,H. Ruiz,A. Colaleo,D. Creanza,M. de Palma,G. Iaselli,G. Maggi,M. Maggi,S. Nuzzo,A. Ranieri,G. Raso,F. Ruggieri,G. Selvaggi,L. Silvestris,P. Tempesta,A. Tricomi,G. Zito,X. Huang,J. Lin,Q. Ouyang,T. Wang,Y. Xie,R. Xu,S. Xue,J. Zhang,L. Zhang,W. Zhao,D. Abbaneo,G. Boix,O. Buchmüller,M. Cattaneo,F. Cerutti,G. Dissertori,H. Drevermann,R.W. Forty,M. Frank,T.C. Greening,J.B. Hansen,J. Harvey,P. Janot,B. Jost,I. Lehraus,P. Mato,A. Minten,A. Moutoussi,F. Ranjard,L. Rolandi,D. Schlatter,M. Schmitt,O. Schneider,P. Spagnolo,W. Tejessy,F. Teubert,E. Tournefier,A.E. Wright,Z. Ajaltouni,F. Badaud,G. Chazelle,O. Deschamps,A. Falvard,P. Gay,C. Guicheney,P. Henrard,J. Jousset,B. Michel,S. Monteil,J.-C. Montret,D. Pallin,P. Perret,F. Podlyski,P.H. Hansen,B.S. Nilsson,A. Wäänänen,G. Daskalakis,A. Kyriakis,C. Markou,E. Simopoulou,A. Vayaki,A. Blondel,G. Bonneaud,J.-C. Brient,A. Rougé,M. Rumpf,M. Swynghedauw,M. Verderi,H. Videau,E. Focardi,G. Parrini,K. Zachariadou,A. Antonelli,G. Bencivenni,G. Bologna,F. Bossi,P. Campana,G. Capon,V. Chiarella,P. Laurelli,G. Mannocchi,F. Murtas,G.P. Murtas,L. Passalacqua,M. Pepe-Altarelli,A.W. Halley,J.G. Lynch,P. Negus,V. O'Shea,C. Raine,P. Teixeira-Dias,A.S. Thompson,R. Cavanaugh,S. Dhamotharan,C. Geweniger,P. Hanke,G. Hansper,V. Hepp,E.E. Kluge,A. Putzer,J. Sommer,K. Tittel,S. Werner,M. Wunsch,R. Beuselinck,D.M. Binnie,W. Cameron,P.J. Dornan,M. Girone,N. Marinelli,J.K. Sedgbeer,J.C. Thompson,E. Thomson,V.M. Ghete,P. Girtler,E. Kneringer,D. Kuhn,G. Rudolph,C.K. Bowdery,P.G. Buck,A.J. Finch,F. Foster,G. Hughes,R.W.L. Jones,N.A. Robertson,I. Giehl,K. Jakobs,K. Kleinknecht,G. Quast,B. Renk,E. Rohne,H.-G. Sander,H. Wachsmuth,C. Zeitnitz,A. Bonissent,J. Carr,P. Coyle,O. Leroy,P. Payre,D. Rousseau,M. Talby,M. Aleppo,F. Ragusa,H. Dietl,G. Ganis,A. Heister,K. Hüttmann,G. Lütjens,C. Mannert,W. Männer,H.-G. Moser,S. Schael,R. Settles,H. Stenzel,W. Wiedenmann,G. Wolf,P. Azzurri,J. Boucrot,O. Callot,S. Chen,A. Cordier,M. Davier,L. Duflot,J.-F. Grivaz,Ph. Heusse,A. Jacholkowska,F. Le Diberder,J. Lefrançois,A.-M. Lutz,M.-H. Schune,J.-J. Veillet,I. Videau,C. Yuan,D. Zerwas,G. Bagliesi,T. Boccali,G. Calderini,V. Ciulli,L. Foà,A. Giassi,F. Ligabue,A. Messineo,F. Palla,G. Rizzo,G. Sanguinetti,A. Sciabà,G. Sguazzoni,R. Tenchini,A. Venturi,P.G. Verdini,G.A. Blair,G.;R. Barate;D. Decamp;P. Ghez;C. Goy;J.-P. Lees;E. Merle;M.-N. Minard;B. Pietrzyk;S. Bravo;M.P. Casado;M. Chmeissani;J.M. Crespo;E. Fernandez;M. Fernandez-Bosman;Ll. Garrido;E. Graugés;M. Martinez;G. Merino;R. Miquel;Ll.M. Mir;A. Pacheco;H. Ruiz;A. Colaleo;D. Creanza;M. de Palma;G. Iaselli;G. Maggi;M. Maggi;S. Nuzzo;A. Ranieri;G. Raso;F. Ruggieri;G. Selvaggi;L. Silvestris;P. Tempesta;A. Tricomi;G. Zito;X. Huang;J. Lin;Q. Ouyang;T. Wang;Y. Xie;R. Xu;S. Xue;J. Zhang;L. Zhang;W. Zhao;D. Abbaneo;G. Boix;O. Buchmüller;M. Cattaneo;F. Cerutti;G. Dissertori;H. Drevermann;R.W. Forty;M. Frank;T.C. Greening;J.B. Hansen;J. Harvey;P. Janot;B. Jost;I. Lehraus;P. Mato;A. Minten;A. Moutoussi;F. Ranjard;L. Rolandi;D. Schlatter;M. Schmitt;O. Schneider;P. Spagnolo;W. Tejessy;F. Teubert;E. Tournefier;A.E. Wright;Z. Ajaltouni;F. Badaud;G. Chazelle;O. Deschamps;A. Falvard;P. Gay;C. Guicheney;P. Henrard;J. Jousset;B. Michel;S. Monteil;J.-C. Montret;D. Pallin;P. Perret;F. Podlyski;P.H. Hansen;B.S. Nilsson;A. Wäänänen;G. Daskalakis;A. Kyriakis;C. Markou;E. Simopoulou;A. Vayaki;A. Blondel;G. Bonneaud;J.-C. Brient;A. Rougé;M. Rumpf;M. Swynghedauw;M. Verderi;H. Videau;E. Focardi;G. Parrini;K. Zachariadou;A. Antonelli;G. Bencivenni;G. Bologna;F. Bossi;P. Campana;G. Capon;V. Chiarella;P. Laurelli;G. Mannocchi;F. Murtas;G.P. Murtas;L. Passalacqua;M. Pepe-Altarelli;A.W. Halley;J.G. Lynch;P. Negus;V. O'Shea;C. Raine;P. Teixeira-Dias;A.S. Thompson;R. Cavanaugh;S. Dhamotharan;C. Geweniger;P. Hanke;G. Hansper;V. Hepp;E.E. Kluge;A. Putzer;J. Sommer;K. Tittel;S. Werner;M. Wunsch;R. Beuselinck;D.M. Binnie;W. Cameron;P.J. Dornan;M. Girone;N. Marinelli;J.K. Sedgbeer;J.C. Thompson;E. Thomson;V.M. Ghete;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;C.K. Bowdery;P.G. Buck;A.J. Finch;F. Foster;G. Hughes;R.W.L. Jones;N.A. Robertson;I. Giehl;K. Jakobs;K. Kleinknecht;G. Quast;B. Renk;E. Rohne;H.-G. Sander;H. Wachsmuth;C. Zeitnitz;A. Bonissent;J. Carr;P. Coyle;O. Leroy;P. Payre;D. Rousseau;M. Talby;M. Aleppo;F. Ragusa;H. Dietl;G. Ganis;A. Heister;K. Hüttmann;G. Lütjens;C. Mannert;W. Männer;H.-G. Moser;S. Schael;R. Settles;H. Stenzel;W. Wiedenmann;G. Wolf;P. Azzurri;J. Boucrot;O. Callot;S. Chen;A. Cordier;M. Davier;L. Duflot;J.-F. Grivaz;Ph. Heusse;A. Jacholkowska;F. Le Diberder;J. Lefrançois;A.-M. Lutz;M.-H. Schune;J.-J. Veillet;I. Videau;C. Yuan;D. Zerwas;G. Bagliesi;T. Boccali;G. Calderini;V. Ciulli;L. Foà;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Rizzo;G. Sanguinetti;A. Sciabà;G. Sguazzoni;R. Tenchini;A. Venturi;P.G. Verdini;G.A. Blair;G.;
Journal	physics letters b
Year	2000
DOI	10.1016/s0370-2693(00)01093-5 Searching for DOI...
URL	https://sciprofiles.com/publication/view/542a1887f17fd513f3e7ca111d8ad177 https://doi.org/10.1016/s0370-2693(00)01093-5
Keywords	lep substantial meson reprocessed τb0 partially

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