Data di Pubblicazione:
2003
Abstract:
The production fractions of charged and neutral b-hadrons in b-quark events from Z(0) decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural network, to estimate the charge of the weakly-decaying b-hadron by distinguishing its decay products from particles produced at the primary vertex. From the data taken in the years 1994 and 1995, the fraction of (b) over bar -quarks fragmenting into positively charged weakly-decaying b-hadrons has been measured to be: f(+) = (42.09+/-0.82(stat)+/-0.89(syst))%. Subtracting the rates for charged Xi(b)(+) and Omega(b)(+) baryons gives the production fraction of B+ mesons: f(Bu) = (40.99+/-0.82(stat)+/-1.11 (syst)) %. (C) 2003 Elsevier B.V. All rights reserved.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
J. Abdallah;P. Abreu;W. Adam;P. Adzic;T. Albrecht;T. Alderweireld;R. Alemany-Fernandez;T. Allmendinger;P. P. Allport;U. Amaldi;N. Amapane;S. Amato;E. Anashkin;E. Andreazza;S. Andringa;N. Anjos;P. Antilogus;W. D. Apel;Y. Arnoud;S. Ask;B. Asman;J. E. Augustin;A. Augustinus;P. Baillon;A. Ballestrero;P. Bambade;R. Barbier;D. Bardin;G. Barker;A. Baroncelli;M. Battaglia;M. Baubillier;K. H. Becks;M. Begalli;A. Behrmann;E. Ben-Haim;N. Benekos;A. Benvenuti;C. Berat;M. Berggren;L. Berntzon;D. Bertrand;M. Besancon;N. Besson;D. Bloch;M. Blom;M. Bluj;M. Bonesini;M. Boonekamp;P. S. L.;G. Borisov;O. Botner;B. Bouquet;T. J. V.;I. Boyko;M. Bracko;R. Brenner;E. Brodet;P. Bruckman;J. M. Brunet;L. Bugge;P. Buschmann;M. Calvi;T. Camporesi;V. Canale;F. Carena;N. Castro;F. Cavallo;M. Chapkin;P. Charpentier;P. Checchia;R. Chierici;P. Chliapnikov;J. Chudoba;S. U. Chung;K. Cieslik;P. Collins;R. Contri;G. Cosme;F. Cossutti;M. J. Costa;B. Crawley;D. Crennell;J. Cuevas;J. D'Hondt;J. Dalmau;T. D. Silva;W. D. Silva;G. D. Ricca;A. D. Angelis;W. D. Boer;C. D. Clercq;B. D. Lotto;N. D. Maria;A. D. Min;L. D. Paula;L. D. Ciaccio;A. D. Simone;K. Doroba;J. Drees;M. Dris;G. Eigen;T. Ekelof;M. Ellert;M. Elsing;M. C. E.;G. Fanourakis;D. Fassouliotis;M. Feindt;J. Fernandez;A. Ferrer;F. Ferro;U. Flagmeyer;H. Foeth;E. Fokitis;F. Fulda-Quenzer;J. Fuster;M. Gandelman;C. Garcia;P. Gavillet;E. Gazis;R. Gokieli;B. Golob;G. Gomez-Ceballos;P. Goncalves;E. Graziani;G. Grosdidier;K. Grzelak;J. Guy;C. Haag;A. Hallgren;K. Hamacher;K. Hamilton;S. Haug;F. Hauler;V. Hedberg;M. Hennecke;H. Herr;J. Hoffman;S. O. Holmgren;P. J. Holt;M. A. Houlden;K. Hultqvist;J. N. Jackson;G. Jarlskog;P. Jarry;D. Jeans;E. K. Johansson;P. D. Johansson;P. Jonsson;C. Joram;L. Jungermann;F. Kapusta;S. Katsanevas;E. Katsoufis;G. Kernel;B. P. Kersevan;U. Kerzel;C. Matteuzzi;F. Mazzucato;M. Mazzucato;R. M. Nulty;C. Meroni;W. T. Meyer;E. Migliore;W. Mitaroff;U. Mjoernmark;T. Moa;M. Moch;K. Moenig;R. Monge;J. Montenegro;D. Moraes;S. Moreno;P. Morettini;U. Mueller;K. Muenich;M. Mulders;L. Mundim;W. Murray;B. Muryn;G. Myatt;T. Myklebust;M. Nassiakou;F. Navarria;K. Nawrocki;R. Nicolaidou;M. Nikolenko;A. Oblakowska-Mucha;V. Obraztsov;A. Olshevski;A. Onofre;R. Orava;K. Osterberg;A. Ouraou;A. Oyanguren;M. Paganoni;S. Paiano;J. P. Palacios;H. Palka;T. D. Papadopoulou;L. Pape;C. Parkes;F. Parodi;U. Parzefall;A. Passeri;O. Passon;L. Peralta;V. Perepelitsa;A. Perrotta;A. Petrolini;J. Piedra;L. Pieri;F. Pierre;M. Pimenta;E. Piotto;T. Podobnik;V. Poireau;M. E. Pol;G. Polok;P. Poropat;V. Pozdniakov;N. Pukhaeva;A. Pullia;J. Rames;L. Ramler;A. Read;P. Rebecchi;J. Rehn;D. Reid;R. Reinhardt;P. Renton;F. Richard;J. Ridky;M. Rivero;D. Rodriguez;A. Romero;P. Ronchese;E. Rosenberg;P. Roudeau;T. Rovelli;V. Ruhlmann-Kleider;D. Ryabtchikov;A. Sadovsky;L. Salmi;J. Salt;A. Savoy-Navarro;U. Schwickerath;A. Segar;R. Sekulin;M. Siebel;A. Sisakian;G. Smadja;O. Smirnova;A. Sokolov;A. Sopczak;R. Sosnowski;T. Spassov;M. Stanitzki;A. Stocchi;J. Strauss;B. Stugu;A. Szczekowski;M. Szeptycka;T. Szumlak;T. Tabarelli;A. C. Taffard;F. Tegenfeldt;J. Timmermans;L. Tkatchev;M. Tobin;S. Todorovova;B. Tome;A. Tonazzo;P. Tortosa;P. Travnicek;D. Treille;G. Tristram;M. Trochimczuk;C. Troncon;M. L. Turluer;I. A. Tyapkin;P. Tyapkin;S. Tzamarias;V. Uvarov;G. Valenti;P. V. Dam;J. V. Eldik;A. V. Lysebetten;N. v. Remortel;I. V. Vulpen;G. Vegni;F. Veloso;W. Venus;P. Verdier;V. Verzi;D. Vilanova;L. Vitale;V. Vrba;H. Wahlen;A. J. Washbrook;C. Weiser;D. Wicke;J. Wickens;G. Wilkinson;M. Winter;M. Witek;O. Yushchenko;A. Zalewska;P. Zalewski;D. Zavrtanik;V. Zhuravlov;N. I. Zimin;A. Zintchenko;M. Zupan
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