The fragmentation of b quarks into B mesons is studied with four million hadronic Z decays collected by the ALEPH experiment during the years 1991–1995. A semi-exclusive reconstruction of B→ℓνD(★) decays is performed, by combining lepton candidates with fully reconstructed D(★) mesons while the neutrino energy is estimated from the missing energy of the event. The mean value of xBwd, the energy of the weakly-decaying B meson normalised to the beam energy, is found to be using a model-independent method; the corresponding value for the energy of the leading B meson is . The reconstructed spectra are compared with different fragmentation models.

Study of the fragmentation of b quarks into B mesons at the Z peak / A. Heister;S. Schael;R. Barate;I. De Bonis;D. Decamp;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;P. Azzurri;G. Boix;O. Buchmüller;M. Cattaneo;F. Cerutti;B. Clerbaux;G. Dissertori;H. Drevermann;R.W. Forty;M. Frank;T.C. Greening;J.B. Hansen;J. Harvey;P. Janot;B. Jost;M. Kado;P. Mato;A. Moutoussi;F. Ranjard;L. Rolandi;D. Schlatter;O. Schneider;P. Spagnolo;W. Tejessy;F. Teubert;E. Tournefier;J. Ward;Z. Ajaltouni;F. Badaud;A. Falvard;P. Gay;P. Henrard;J. Jousset;B. Michel;S. Monteil;J.-C. Montret;D. Pallin;P. Perret;F. Podlyski;J.D. Hansen;J.R. Hansen;P.H. Hansen;B.S. Nilsson;A. Wäänänen;A. Kyriakis;C. Markou;E. Simopoulou;A. Vayaki;K. Zachariadou;A. Blondel;G. Bonneaud;J.-C. Brient;A. Rougé;M. Rumpf;M. Swynghedauw;M. Verderi;H. Videau;V. Ciulli;E. Focardi;G. Parrini;A. Antonelli;M. 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;A.S. Thompson;S. Wasserbaech;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;V.M. Ghete;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;E. Bouhova-Thacker;C.K. Bowdery;A.J. Finch;F. Foster;G. Hughes;R.W.L. Jones;M.R. Pearson;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;A. David;H. Dietl;G. Ganis;K. Hüttmann;G. Lütjens;C. Mannert;W. Männer;H.-G. Moser;R. Settles;H. Stenzel;W. Wiedenmann;G. Wolf;J. Boucrot;O. Callot;M. Davier;L. Duflot;J.-F. Grivaz;Ph. Heusse;A. Jacholkowska;J. Lefrançois;J.-J. Veillet;I. Videau;C. Yuan;G. Bagliesi;T. Boccali;G. Calderini;L. Foà;A. Giammanco;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Sanguinetti;A. Sciabà;G. Sguazzoni;R. Tenchini;A. Venturi;P.G. Verdini;G.A. Blair;G. Cowan;M.G. Green;T. Medcalf;A. Misiejuk;J.A. Strong;P. Teixeira-Dias;J.H. von Wimmersperg-Toeller;R.W. Clifft;T.R. Edgecock;P.R. Norton;I.R. Tomalin;B. Bloch-Devaux;P. Colas;S. Emery;W. Kozanecki;E. Lançon;M.-C. Lemaire;E. Locci;P. Perez;J. Rander;J.-F. Renardy;A. Roussarie;J.-P. Schuller;J. Schwindling;A. Trabelsi;B. Vallage;N. Konstantinidis;A.M. Litke;G. Taylor;C.N. Booth;S. Cartwright;F. Combley;M. Lehto;L.F. Thompson;K. Affholderbach;A. Böhrer;S. Brandt;C. Grupen;A. Ngac;G. Prange;U. Sieler;G. Giannini;J. Rothberg;S.R. Armstrong;K. Cranmer;P. Elmer;D.P.S. Ferguson;Y. Gao;S. González;O.J. Hayes;H. Hu;S. Jin;J. Kile;P.A. McNamara;J. Nielsen;W. Orejudos;Y.B. Pan;Y. Saadi;I.J. Scott;J. Walsh;Sau Lan Wu;X. Wu;G. Zobernig. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 512:(2001), pp. 30-48. [10.1016/S0370-2693(01)00690-6]

Study of the fragmentation of b quarks into B mesons at the Z peak

FOCARDI, ETTORE;CIULLI, VITALIANO;
2001

Abstract

The fragmentation of b quarks into B mesons is studied with four million hadronic Z decays collected by the ALEPH experiment during the years 1991–1995. A semi-exclusive reconstruction of B→ℓνD(★) decays is performed, by combining lepton candidates with fully reconstructed D(★) mesons while the neutrino energy is estimated from the missing energy of the event. The mean value of xBwd, the energy of the weakly-decaying B meson normalised to the beam energy, is found to be using a model-independent method; the corresponding value for the energy of the leading B meson is . The reconstructed spectra are compared with different fragmentation models.
2001
512
30
48
A. Heister;S. Schael;R. Barate;I. De Bonis;D. Decamp;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;P. Azzurri;G. Boix;O. Buchmüller;M. Cattaneo;F. Cerutti;B. Clerbaux;G. Dissertori;H. Drevermann;R.W. Forty;M. Frank;T.C. Greening;J.B. Hansen;J. Harvey;P. Janot;B. Jost;M. Kado;P. Mato;A. Moutoussi;F. Ranjard;L. Rolandi;D. Schlatter;O. Schneider;P. Spagnolo;W. Tejessy;F. Teubert;E. Tournefier;J. Ward;Z. Ajaltouni;F. Badaud;A. Falvard;P. Gay;P. Henrard;J. Jousset;B. Michel;S. Monteil;J.-C. Montret;D. Pallin;P. Perret;F. Podlyski;J.D. Hansen;J.R. Hansen;P.H. Hansen;B.S. Nilsson;A. Wäänänen;A. Kyriakis;C. Markou;E. Simopoulou;A. Vayaki;K. Zachariadou;A. Blondel;G. Bonneaud;J.-C. Brient;A. Rougé;M. Rumpf;M. Swynghedauw;M. Verderi;H. Videau;V. Ciulli;E. Focardi;G. Parrini;A. Antonelli;M. 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;A.S. Thompson;S. Wasserbaech;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;V.M. Ghete;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;E. Bouhova-Thacker;C.K. Bowdery;A.J. Finch;F. Foster;G. Hughes;R.W.L. Jones;M.R. Pearson;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;A. David;H. Dietl;G. Ganis;K. Hüttmann;G. Lütjens;C. Mannert;W. Männer;H.-G. Moser;R. Settles;H. Stenzel;W. Wiedenmann;G. Wolf;J. Boucrot;O. Callot;M. Davier;L. Duflot;J.-F. Grivaz;Ph. Heusse;A. Jacholkowska;J. Lefrançois;J.-J. Veillet;I. Videau;C. Yuan;G. Bagliesi;T. Boccali;G. Calderini;L. Foà;A. Giammanco;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Sanguinetti;A. Sciabà;G. Sguazzoni;R. Tenchini;A. Venturi;P.G. Verdini;G.A. Blair;G. Cowan;M.G. Green;T. Medcalf;A. Misiejuk;J.A. Strong;P. Teixeira-Dias;J.H. von Wimmersperg-Toeller;R.W. Clifft;T.R. Edgecock;P.R. Norton;I.R. Tomalin;B. Bloch-Devaux;P. Colas;S. Emery;W. Kozanecki;E. Lançon;M.-C. Lemaire;E. Locci;P. Perez;J. Rander;J.-F. Renardy;A. Roussarie;J.-P. Schuller;J. Schwindling;A. Trabelsi;B. Vallage;N. Konstantinidis;A.M. Litke;G. Taylor;C.N. Booth;S. Cartwright;F. Combley;M. Lehto;L.F. Thompson;K. Affholderbach;A. Böhrer;S. Brandt;C. Grupen;A. Ngac;G. Prange;U. Sieler;G. Giannini;J. Rothberg;S.R. Armstrong;K. Cranmer;P. Elmer;D.P.S. Ferguson;Y. Gao;S. González;O.J. Hayes;H. Hu;S. Jin;J. Kile;P.A. McNamara;J. Nielsen;W. Orejudos;Y.B. Pan;Y. Saadi;I.J. Scott;J. Walsh;Sau Lan Wu;X. Wu;G. Zobernig
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/657272
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