${{\mathit D}^{0}}$ $\mathit CP$-EVEN FRACTIONS

The $\mathit CP$-even fraction F$_{+}$, defined for self-conjugate final states, like the coherence factor is useful for measuring the unitary triangle angle $\gamma $ in ${{\mathit B}}$ $\rightarrow$ ${{\mathit D}}{{\mathit K}}$ decays. A purely $\mathit CP$-even state has F$_{+}$ = 1, a $\mathit CP$-odd one has F$_{+}$ = 0. For details, see NAYAK 2015.

$\mathit CP$-even fraction in ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ decays

INSPIRE   JSON  (beta) PDGID:
S032C79
VALUE (%) DOCUMENT ID  COMMENT
$\bf{ 23.6 \pm0.9 }$ OUR AVERAGE
$23.5$ $\pm1.0$ $\pm0.2$
ABLIKIM
2023AW
 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at ${{\mathit \psi}{(3770)}}$, 2.93 ${\mathrm {fb}}{}^{-1}$
$23.8$ $\pm1.2$ $\pm1.2$ 1
RESMI
2018
Uses CLEO-c data
1  Obtained by analyzing CLEO-c data but not authored by the CLEO Collaboration.
References