Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/133601
Title: First Observation of the Decays ¯¯¯B0→D+K−π+π− and B−→D0K−π+π−
Author: Abellan Beteta, Carlos
Calvo Gómez, Míriam
Camboni, Alessandro
Comerma Montells, Albert
Domingo Bonal, Francesc
Garrido Beltrán, Lluís
Gascón Fora, David
Grabalosa Gándara, Marc
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
López Asamar, Elias
Musy, Marco
Pérez-Calero Yzquierdo, Antonio
Picatoste Olloqui, Eduardo
Pie Valls, B. (Blai)
Potterat, Cédric
Puig Navarro, Albert
Roselló, M.
Ruiz, Hugo (Ruiz Pérez)
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 18-Apr-2012
Publisher: American Physical Society
Abstract: First observations of the Cabibbo-suppressed decays ¯¯¯ B 0 → D + K − π + π − and B − → D 0 K − π + π − are reported using 35     pb − 1 of data collected with the LHCb detector. Their branching fractions are measured with respect to the corresponding Cabibbo-favored decays, from which we obtain B ( ¯¯¯ B 0 → D + K − π + π − ) / B ( ¯¯¯ B 0 → D + π − π + π − ) = ( 5.9 ± 1.1 ± 0.5 ) × 10 − 2 and B ( B − → D 0 K − π + π − ) / B ( B − → D 0 π − π + π − ) = ( 9.4 ± 1.3 ± 0.9 ) × 10 − 2 , where the uncertainties are statistical and systematic, respectively. The B − → D 0 K − π + π − decay is particularly interesting, as it can be used in a similar way to B − → D 0 K − to measure the Cabibbo-Kobayashi-Maskawa phase γ .
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.108.161801
It is part of: Physical Review Letters, 2012, vol. 108, num. 16, p. 161801
URI: http://hdl.handle.net/2445/133601
Related resource: https://doi.org/10.1103/PhysRevLett.108.161801
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Electrònica)
Articles publicats en revistes (Física de la Matèria Condensada)
Articles publicats en revistes (Física Quàntica i Astrofísica)

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