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${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{+}}$ , $\mathit R_{ {{\mathit K}}3 {{\mathit \pi}} }$ (y cos $\delta {}^{ {{\mathit K}}3 {{\mathit \pi}} }$ $−$ x sin$\delta {}^{ {{\mathit K}}3 {{\mathit \pi}} }$)

INSPIRE   PDGID:

S032A82

VALUE ($ 10^{-3} $ TeV${}^{-1}$) EVTS DOCUMENT ID TECN  COMMENT $-3.0$ $\pm0.7$ 42.5k 1 AAIJ 2016 F LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV 1  From a time-dependent analysis of ${{\mathit D}}$ mixing in ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ . This result uses external constraints on R$_{M}$= 1/2 (x${}^{2}$ + y${}^{2}$). Without such constraints, AAIJ 2016F measure ($0.3$ $\pm1.8$) $ \times 10^{-3}$, with a large correlation coefficient to R$_{M}$.

References:

AAIJ 2016F PRL 116 241801 First Observation of ${{\mathit D}^{0}}−{{\overline{\mathit D}}^{0}}$ Oscillations in ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Decays and Measurement of the Associated Coherence Parameters