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Angular Analysis of D0 → π+π-μ+μ- and D0 → K+K-μ+μ- Decays and Search for CP Violation

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Schmelling,  M.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Citation

The LHCb Collaboration, Aaij, R., Abdelmotteleb, A. S. W., Abellan Beteta, C., Abudinen, F., Ackernley, T., et al. (2022). Angular Analysis of D0 → π+π-μ+μ- and D0 → K+K-μ+μ- Decays and Search for CP Violation. Physical Review Letters, 128(22): 221801. doi:10.1103/PhysRevLett.128.221801.


Cite as: https://hdl.handle.net/21.11116/0000-000A-EBCD-7
Abstract
The first full angular analysis and an updated measurement of the decay-rate CP asymmetry of the D0 ??? x-+x-?????+????? and D0 ??? K+K?????+????? decays are reported. The analysis uses proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. The dataset corresponds to an integrated luminosity of 9 fb???1. The full set of CP -averaged angular observables and their CP asymmetries are measured as a function of the dimuon invariant mass. The results are consistent with expectations from the standard model and with CP symmetry.