The purely leptonic decays Ds→τν and Ds→μν are studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e− collider from 1991 to 1995. The branching fractions are extracted from a combination of two analyses, one optimized to select Ds→τν decays with or , and the other optimized for Ds→μν decays. The results are used to evaluate the Ds decay constant, within the Standard Model: fDs=[285±19(stat)±40(syst)] MeV.

Leptonic decays of the Ds meson / A. Heister;S. Schael;R. Barate;I. De Bonis;D. Decamp;C. Goy;J.-P. Lees;E. Merle;M.-N. Minard;B. Pietrzyk;G. Boix;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;O. Buchmüller;M. Cattaneo;F. Cerutti;B. Clerbaux;H. Drevermann;R.W. Forty;M. Frank;F. Gianotti;T.C. Greening;J.B. Hansen;J. Harvey;D.E. Hutchcroft;P. Janot;B. Jost;M. Kado;P. Mato;A. Moutoussi;F. Ranjard;L. Rolandi;D. Schlatter;O. Schneider;G. Sguazzoni;W. Tejessy;F. Teubert;A. Valassi;I. Videau;J. Ward;F. Badaud;A. Falvard;P. Gay;P. Henrard;J. Jousset;B. Michel;S. Monteil;J.-C. Montret;D. Pallin;P. Perret;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;P. Spagnolo;A. 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;H. Stenzel;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;K. Jakobs;K. Kleinknecht;G. Quast;B. Renk;H.-G. Sander;H. Wachsmuth;C. Zeitnitz;A. Bonissent;J. Carr;P. Coyle;O. Leroy;P. Payre;D. Rousseau;M. Talby;F. Ragusa;A. David;H. Dietl;G. Ganis;K. Hüttmann;G. Lütjens;C. Mannert;W. Männer;H.-G. Moser;R. Settles;W. Wiedenmann;G. Wolf;J. Boucrot;O. Callot;M. Davier;L. Duflot;J.-F. Grivaz;Ph. Heusse;A. Jacholkowska;J. Lefrançois;J.-J. Veillet;C. Yuan;G. Bagliesi;T. Boccali;L. Foà;A. Giammanco;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Sanguinetti;A. Sciabà;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;H. He;J. Putz;J. Rothberg;S.R. Armstrong;K. Berkelman;K. Cranmer;D.P.S. Ferguson;Y. Gao;S. González;O.J. Hayes;H. Hu;S. Jin;J. Kile;P.A. McNamara;J. Nielsen;Y.B. Pan;J.H. von Wimmersperg-Toeller;W. Wiedenmann;J. Wu;Sau Lan Wu;X. Wu;G. Zobernig;G. Dissertori. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 528:(2002), pp. 1-18. [10.1016/S0370-2693(02)01212-1]

Leptonic decays of the Ds meson

FOCARDI, ETTORE;CIULLI, VITALIANO;
2002

Abstract

The purely leptonic decays Ds→τν and Ds→μν are studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e− collider from 1991 to 1995. The branching fractions are extracted from a combination of two analyses, one optimized to select Ds→τν decays with or , and the other optimized for Ds→μν decays. The results are used to evaluate the Ds decay constant, within the Standard Model: fDs=[285±19(stat)±40(syst)] MeV.
2002
528
1
18
A. Heister;S. Schael;R. Barate;I. De Bonis;D. Decamp;C. Goy;J.-P. Lees;E. Merle;M.-N. Minard;B. Pietrzyk;G. Boix;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;O. Buchmüller;M. Cattaneo;F. Cerutti;B. Clerbaux;H. Drevermann;R.W. Forty;M. Frank;F. Gianotti;T.C. Greening;J.B. Hansen;J. Harvey;D.E. Hutchcroft;P. Janot;B. Jost;M. Kado;P. Mato;A. Moutoussi;F. Ranjard;L. Rolandi;D. Schlatter;O. Schneider;G. Sguazzoni;W. Tejessy;F. Teubert;A. Valassi;I. Videau;J. Ward;F. Badaud;A. Falvard;P. Gay;P. Henrard;J. Jousset;B. Michel;S. Monteil;J.-C. Montret;D. Pallin;P. Perret;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;P. Spagnolo;A. 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;H. Stenzel;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;K. Jakobs;K. Kleinknecht;G. Quast;B. Renk;H.-G. Sander;H. Wachsmuth;C. Zeitnitz;A. Bonissent;J. Carr;P. Coyle;O. Leroy;P. Payre;D. Rousseau;M. Talby;F. Ragusa;A. David;H. Dietl;G. Ganis;K. Hüttmann;G. Lütjens;C. Mannert;W. Männer;H.-G. Moser;R. Settles;W. Wiedenmann;G. Wolf;J. Boucrot;O. Callot;M. Davier;L. Duflot;J.-F. Grivaz;Ph. Heusse;A. Jacholkowska;J. Lefrançois;J.-J. Veillet;C. Yuan;G. Bagliesi;T. Boccali;L. Foà;A. Giammanco;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Sanguinetti;A. Sciabà;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;H. He;J. Putz;J. Rothberg;S.R. Armstrong;K. Berkelman;K. Cranmer;D.P.S. Ferguson;Y. Gao;S. González;O.J. Hayes;H. Hu;S. Jin;J. Kile;P.A. McNamara;J. Nielsen;Y.B. Pan;J.H. von Wimmersperg-Toeller;W. Wiedenmann;J. Wu;Sau Lan Wu;X. Wu;G. Zobernig;G. Dissertori
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/658118
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