Resumen
An analysis of B ± → DK ± and B ± → Dπ ± decays is presented where the D meson is reconstructed in the four -body nal state K ±π ∓π +π-. Using LHCb data corresponding to an integrated luminosity of 1.0 fb -1, rst observations are made of the suppressed ADS modes B ± →[π ±K ∓π +π-] D K ± and B ± → [π ±K ∓π +π-]Dπ ± with a signicance of 5.1σ and greater than 10σ, respectively. Measurements of CP asymmetries and CP -conserving ratios of partial widths from this family of decays are also performed. The magnitude of the ratio between the suppressed and favoured B ± → DK ± amplitudes is determined to be r K B = 0.097±0.011.
Idioma original | English |
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Páginas (desde-hasta) | 44-53 |
Número de páginas | 10 |
Publicación | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volumen | 723 |
N.º | 1-3 |
DOI | |
Estado | Published - 10 jun 2013 |
Publicado de forma externa | Sí |
All Science Journal Classification (ASJC) codes
- Física nuclear y de alta energía