Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h−
Name
Aaij2021_Article_MeasurementOfTHeCKMAngleΓInBDK.pdf
Description
Published version
Size
1.71 MB
Format
Adobe PDF
Checksum (MD5)
7cdb9d2213a23face04fc168be66143b
Author(s)
Williams, Michael
Date Issued
February 1, 2021
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
Williams, Michael. 2021. "Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h−." Journal of High Energy Physics, 2021 (2).
Version
Final published version
Abstract
A measurement of CP-violating observables is performed using the decays B → DK and B → Dπ , where the D meson is reconstructed in one of the self-conjugate three-body final states KS0π π and KS0K K (commonly denoted KS0h h ). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle γ. Using a data sample corresponding to an integrated luminosity of 9 fb collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, γ is measured to be (68.7−5.1+5.2)°. The hadronic parameters rBDK,rBDπ,δBDK,andδBDπ, which are the ratios and strong-phase differences of the suppressed and favoured B decays, are also reported. [Figure not available: see fulltext.] ± ± ± ± + − + − + − −1 ±
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP02(2021)169
