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Observation of the suppressed ADS modes B ± → [ π ± K ∓ π + π − ] D K ± and B ± → [ π ± K ∓ π + π − ] D π ±
Name
1-s2.0-S0370269313003778-main.pdf
Description
Published version
Size
1.02 MB
Format
Adobe PDF
Checksum (MD5)
d33ac3ff4d48bcd4ab18c2df514754ed
Date Issued
2013
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publisher
Elsevier BV
Citation
Aaij, R., et al. "Observation of the Suppressed Ads Modes B� ?[?�K(?+?-]Dk�:And B� ?[?�K(?+?-]Dp�." Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 723 1-3 (2013): 44-53.
Version
Final published version
Abstract
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 rKB = 0.097±0.011. © CERN for the benet of the LHCb Collaboration.
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Creative Commons Attribution-NonCommercial-NoDerivs License
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DOI of Published Version
10.1016/J.PHYSLETB.2013.05.009
