Measurement of CP violation parameters and polarisation fractions in B[subscript s][superscript 0] → J/ψ[¯ over K][superscript ∗ 0] decays
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JHEP11(2015)082.pdf
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Author(s)
Ilten, Philip J
Williams, Michael
Date Issued
November 2015
Journal
Journal of High Energy Physics
Publisher
Springer Nature
Citation
The LHCb collaboration, et al. “Measurement of CP Violation Parameters and Polarisation Fractions in B[subscript s][superscript 0] → J/ψ[ ¯ over K][superscript ∗ 0] Decays.” Journal of High Energy Physics, vol. 2015, no. 11, Nov. 2015. © 2015 The Authors
Version
Final published version
Abstract
The first measurement of CP asymmetries in the decay (Formula Presented.) and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb[superscript −1] of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B[superscript 0] → J/ψ ρ[superscript 0], the results are used to constrain additional contributions due to penguin diagrams in the CP -violating phase ϕ[subscript s], measured through B[subscript s][superscript 0] decays to charmonium.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1007/JHEP11(2015)082
