Angular Analysis of D
Phys Rev Lett
; 128(22): 221801, 2022 Jun 03.
Article
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| ID: mdl-35714260
ABSTRACT
The first full angular analysis and an updated measurement of the decay-rate CP asymmetry of the D^{0}âπ^{+}π^{-}µ^{+}µ^{-} and D^{0}âK^{+}K^{-}µ^{+}µ^{-} 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.
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Phys Rev Lett
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2022
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Article