Bs 0–B¯s 0 oscillations as a new tool to explore CP violation in Ds ± decays

Robert Fleischer*, K. Keri Vos

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review


CP violation in Bs 0–B¯s 0 oscillations is expected at the 10−5 level in the Standard Model but could be enhanced by New Physics. Using Bs 0→Ds +ν decays, LHCb has recently reported the new result (0.39±0.33)×10−2 of the corresponding observable asl s. We point out that other current B decay data imply asl s=(0.004±0.075)×10−2. In view of this strong constraint, we propose to use Bs 0→Ds +ν and similar flavor-specific decays as a new tool to determine both the production asymmetry between Bs 0 and B¯s 0 mesons, and the CP asymmetry in the subsequent Ds ± decays. The former serves as input for analyses of CP violation in Bs 0 channels, with significant room for improvement, while the latter offers an exciting laboratory for New Physics.

Original languageEnglish
Pages (from-to)319-324
Number of pages6
JournalPhysics Letters. Section B : Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 10 Jul 2017


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