| HAL : in2p3-00672860, version 1 |
| arXiv : 1110.6005 |
| DOI : 10.1103/PhysRevD.85.011102 |
| Fiche détaillée | Récupérer au format |
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| Physical Review D 85 (2012) 011102 |
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| Search for Bbar --> Lambda_c+ X l- nu Decays in Events With a Fully Reconstructed B Meson |
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| J.P. Lees1V. Poireau1V. Tisserand1D. Bernard2M. Verderi2N. Arnaud3M. Davier3D. Derkach3G. Grosdidier3F. Le Diberder3A. M. Lutz3B. Malaescu3P. Roudeau3M. H. Schune3A. Stocchi3G. Wormser3 |
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| (2012) |
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| We present a search for semileptonic B decays to the charmed baryon Lambda_c+ based on 420 fb-1 of data collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II $e^+e^-$ storage rings. By fully reconstructing the recoiling B in a hadronic decay mode, we reduce non-B backgrounds and determine the flavor of the signal B. We statistically correct the flavor for the effect of the B0 mixing. We obtain a 90% confidence level upper limit of BF(Bbar --> Lambda_c+ X l- nubar)/BF(Bbar --> Lambda_c+ X) < 3.5 %. |
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| 1 : | LAPP - Laboratoire d'Annecy le Vieux de Physique des Particules |
| 2 : | LLR - Laboratoire Leprince-Ringuet |
| 3 : | LAL - Laboratoire de l'Accélérateur Linéaire |
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| Thème(s) | : | Physique/Physique des Hautes Energies - Expérience |
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| Lien vers le texte intégral : |
| in2p3-00672860, version 1 | |
| http://hal.in2p3.fr/in2p3-00672860 | |
| oai:hal.in2p3.fr:in2p3-00672860 | |
| Contributeur : Françoise Marechal | |
| Soumis le : Mercredi 22 Février 2012, 10:58:30 | |
| Dernière modification le : Lundi 5 Mars 2012, 17:09:26 | |