Inclusive b decays to wrong sign charmed mesons

Summary, in English

The production of wrong sign charmed mesons b --> (D) over bar X-(s), D-(s) = (D-0, D+, D-s), is studied using the data collected by the DELPHI experiment in the years 1994 and 1995. Charmed mesons in Z --> b (b) over bar events are exclusively reconstructed by searching for the decays D-0 --> K(-)pi(+), D+ --> K(-)pi(+)pi(+) and D-s(+) --> phipi(+) --> K(+)K(-)pi(+). The wrong sign contribution is extracted by using two discriminant variables: the charge of the b-quark at decay time, estimated from the charges of identified particles, and the momentum of the charmed meson in the rest frame of the b-hadron. The inclusive branching fractions of b-hadrons into wrong sign charm mesons are measured to be: B(b --> (D) over bar X-0) + B(b --> D-X) = (9.3 +/- 1.7(stat) +/- 1.3(syst) +/- 0.4(B))%, B(b --> Ds-X) = (10.1 +/- 1.0(stat) +/- 0.6(syst) +/- 2.8(B))% where the first error is statistical, the second and third errors are systematic. (C) 2003 Published by Elsevier Science B.V.

• Author: J Abdallah; P Abreu; W Adam; P Adzic; T Albrecht; T Alderweireld; R Alemany-Fernandez; T Allmendinger; PP Allport; U Amaldi; N Amapane; S Amato; E Anashkin; A Andreazza; S Andringa; N Anjos; P Antilogus; WD Apel; Y Arnoud; Stefan Ask; B Asman; JE Augustin; A Augustinus; P Baillon; A Ballestrero; P Bambade; R Barbiery; D Bardin; G Barker; A Baroncelli; M Battaglia; M Baubillier; KH 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; PSL Booth; G Borisov; O Botner; B Bouquet; TJV Bowcock; I Boyko; M Bracko; R Brenner; E Brodet; P Bruckman; JM 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; SU Chung; K Cieslik; P Collins; R Contri; G Cosme; F Cossutti; MJ Costa; B Crawley; D Crennell; J Cuevas; J D'Hondt; J Dalmau; T da Silva; W Da Silva; G Della Ricca; A De Angelis; W De Boer; C De Clercq; B De Lotto; N De Maria; A De Min; L de Paula; L Di Ciaccio; A Di Simone; K Doroba; J Drees; M Dris; G Eigen; T Ekelof; M Ellert; M Elsing; MCE Santo; G Fanourakis; D Fassouliotis; M Feindt; J Fernandez; A Ferrer; R Ferro; U Flagmeyer; H Foeth; E Fokitis; F Fulda-Quenzer; J Fuster; M Gandelman; C Garcia; P Gavillet; E Gazis; T Geralis; R Gokieli; B Golob; G Gomez-Ceballos; P Goncalves; E Graziani; G Grosdider; K Grzelak; J Guy; C Haag; A Hallgren; K Hamacher; K Hamilton; J Hansen; S Haug; R Hauler; Vincent Hedberg; M Hennecke; H Herr; J Hoffman; SO Holmgren; PJ Holt; MA Houlden; K Hultqvist; JN Jackson; Göran Jarlskog; P Jarry; D Jeans; EK Johansson; PD Johansson; P Jonsson; C Joram; L Jungermann; F Kapusta; S Katsanevas; E Katsoufis; G Kernel; BP Kersevan; A Kiiskinen; BT King; NJ Kjaer; P Kluit; P Kokkinias; C Kourkoumelis; O Kouznetsov; Z Krumstein; M Kucharczyk; J Lamsa; G Leder; F Ledroit; L Leinonen; R Leitner; J Lemonne; V Lepeltier; T Lesiak; W Liebig; D Liko; A Lipniacka; JH Lopes; JM Lopez; D Loukas; P Lutz; L Lyons; J MacNaughton; A Malek; S Maltezos; E Mandl; J Marco; R Marco; B Marechal; M Margoni; JC Marin; C Mariotti; A Markou; C Martinez-Rivero; J Masik; N Mastroyiannopoulos; F Matorras; C Matteuzzi; F Mazzucato; M Mazzucato; RM Nulty; C Meroni; WT Meyer; E Migliore; W Mitaroff; Ulf Mjörnmark; 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; JP Palacios; H Palka; TD 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; R Pierre; M Pimenta; E Piotto; T Podobnik; V Poireau; ME 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; R 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; C Schwanda; A Segar; R Sekulin; M Siebel; A Sisakian; G Smadja; Oxana Smirnova; A Sokolov; A Sopczak; R Sosnowski; T Spassov; M Stanitzki; A Stocchi; J Strauss; B Stugu; M Szczekowski; M Szeptycka; T Szumlak; T Tabarelli; AC Taffard; E Tegenfeldt; J Timmermans; L Tkatchev; M Tobin; S Todorovova; A Tomaradze; B Tome; A Tonazzo; P Tortosa; P Travnicek; D Treille; G Tristram; M Trochimczuk; C Troncon; ML Turluer; IA Tyapkin; P Tyapkin; S Tzamarias; V Uvarov; G Valenti; P Van Dam; J Van Eldik; A Van Lysebetten; N van Remortel; I Van Vulpen; G Vegni; F Veloso; W Venus; F Verbeure; P Verdier; V Verzi; D Vilanova; L Vitale; V Vrba; H Wahlen; AJ Washbrook; C Weiser; D Wicke; J Wickens; G Wilkinson; M Winter; M Witek; O Yushchenko; A Zalewska; P Zalewski; D Zavrtanik; NI Zimin; A Zintchenko; M Zupan
• Department/s: Particle and nuclear physics
• Publishing year: 2003
• Language: English
• Pages: 26-40
• Publication/Series: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
• Volume: 561
• Issue: 1-2
• Links: http://dx.doi.org/10.1016/S0370-2693(03)00387-3
• Document type: Journal article
• Publisher: Elsevier
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 0370-2693