Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/131720
Title: Measurements of the branching fractions for B(s)→D(s)πππ and Λ0b→Λ+cπππ
Author: Camboni, Alessandro
Enterria i Adan, David G. d'
Garrido Beltrán, Lluís
Grabalosa Gándara, Marc
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
López Asamar, Elias
Musy, Marco
Pérez-Calero Yzquierdo, Antonio
Pie Valls, B. (Blai)
Potterat, Cédric
Puig Navarro, Albert
Ruiz, Hugo (Ruiz Pérez)
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 2-Nov-2011
Publisher: American Physical Society
Abstract: Branching fractions of the decays H b → H c π − π + π − relative to H b → H c π − are presented, where H b ( H c ) represents ¯¯¯ B 0 ( D + ), B − ( D 0 ), ¯¯¯ B 0 s ( D + s ), and Λ 0 b ( Λ + c ). The measurements are performed with the LHCb detector using 35     pb − 1 of data collected at √ s = 7     TeV . The ratios of branching fractions are measured to be [ B ( ¯¯¯ B 0 → D + π − π + π − ) ] / [ B ( ¯¯¯ B 0 → D + π − ) ] = 2.38 ± 0.11 ± 0.21 , [ B ( B − → D 0 π − π + π − ) ] / [ B ( B − → D 0 π − ) ] = 1.27 ± 0.06 ± 0.11 , [ B ( ¯¯¯ B 0 s → D + s π − π + π − ) ] / [ B ( ¯¯¯ B 0 s → D + s π − ) ] = 2.01 ± 0.37 ± 0.20 , [ B ( Λ 0 b → Λ + c π − π + π − ) ] / [ B ( Λ 0 b → Λ + c π − ) ] = 1.43 ± 0.16 ± 0.13 We also report measurements of partial decay rates of these decays to excited charm hadrons. These results are of comparable or higher precision than existing measurements.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.84.092001
It is part of: Physical Review D, 2011, vol. 84, num. 9, p. 092001
URI: http://hdl.handle.net/2445/131720
Related resource: https://doi.org/10.1103/PhysRevD.84.092001
ISSN: 1550-7998
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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