CHARMED MESONS
($\boldsymbol C$ = $\pm1$)
${{\mathit D}^{+}}$ = ${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit d}}}$, ${{\mathit D}^{0}}$ = ${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit u}}}$, ${{\overline{\mathit D}}^{0}}$ = ${\mathit {\overline{\mathit c}}}$ ${\mathit {\mathit u}}$, ${{\mathit D}^{-}}$ = ${\mathit {\overline{\mathit c}}}$ ${\mathit {\mathit d}}$, similarly for ${{\mathit D}^{*}}$'s

INSPIRE search

${{\boldsymbol D}^{0}}$ $I(J^P)$ = $1/2(0^{-})$

See related review:
${{\mathit D}^{0}}$ $-$ ${{\overline{\mathit D}}^{0}}$ Mixing

${{\mathit D}^{0}}$ MASS

$1864.83 \pm0.05$ MeV

${\mathit m}_{{{\mathit D}^{\pm}}}–{\mathit m}_{{{\mathit D}^{0}}}$

$4.822 \pm0.015$ MeV

${{\mathit D}^{0}}$ MEAN LIFE

$(4.101 \pm0.015) \times 10^{-13}$ s

$\vert{}{\mathit m}_{{{\mathit D}_{{1}}^{0}}}–{\mathit m}_{{{\mathit D}_{{2}}^{0}}}\vert{}$ = $x$ $\Gamma $

$(95 {}^{+41}_{-44}) \times 10^{8}$ $\hbar{}$ s${}^{-1}$

($\Gamma _{{{\mathit D}_{{1}}^{0}}}$ $-$ $\Gamma _{{{\mathit D}_{{2}}^{0}}})/\Gamma $ = 2$\mathit y$

$0.0129 {}^{+0.0014}_{-0.0018}$

$\vert $q/p$\vert $

$0.92 {}^{+0.12}_{-0.09}$

A$_{\Gamma }$

$-0.000125 \pm0.000526$

$\phi {}^{ {{\mathit K}_S^0} {{\mathit \pi}} {{\mathit \pi}} }$

$-0.09 {}^{+0.10}_{-0.13}$

cos $ \delta $

$0.97 \pm0.11$

${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{0}}$ COHERENCE FACTOR $\mathit R_{ {{\mathit K}} {{\mathit \pi}} {{\mathit \pi}^{0}} }$

$0.82 \pm0.06$

${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{0}}$ AVERAGE RELATIVE STRONG PHASE $\delta {}^{ {{\mathit K}} {{\mathit \pi}} {{\mathit \pi}^{0}} }$

$199 \pm14$ $^\circ{}$

${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{+}}$ COHERENCE FACTOR $\mathit R_{ {{\mathit K}}3 {{\mathit \pi}} }$

$0.53 {}^{+0.18}_{-0.21}$

${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{+}}$ AVERAGE RELATIVE STRONG PHASE $\delta {}^{ {{\mathit K}}3 {{\mathit \pi}} }$

$125 {}^{+22}_{-14}$ $^\circ{}$

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

$-0.0030 \pm0.0007$ TeV${}^{-1}$

${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$ COHERENCE FACTOR R$_{ {{\mathit K}_S^0} {{\mathit K}} {{\mathit \pi}} }$

$0.70 \pm0.08$

${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$ AVERAGE RELATIVE STRONG PHASE $\delta {}^{ {{\mathit K}_S^0} {{\mathit K}} {{\mathit \pi}} }$

$0 \pm16$ $^\circ{}$

${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{*}}{{\mathit K}}$ COHERENCE FACTOR R$_{ {{\mathit K}^{*}} {{\mathit K}} }$

$0.94 \pm0.12$

${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{*}}{{\mathit K}}$ AVERAGE RELATIVE STRONG PHASE $\delta {}^{ {{\mathit K}^{*}} {{\mathit K}} }$

$-17 \pm18$ $^\circ{}$

▸	${{\boldsymbol D}^{0}}$ $\boldsymbol CP$-VIOLATING DECAY-RATE ASYMMETRIES

▸	${{\boldsymbol D}^{0}}$ $\boldsymbol CP$-EVEN FRACTIONS

${{\boldsymbol D}^{0}}$ $\boldsymbol CP$-VIOLATING ASYMMETRY DIFFERENCES

$\Delta \mathit A_{CP}$ = $\mathit A_{CP}$( ${{\mathit K}^{+}}{{\mathit K}^{-}}$ ) $−$ $\mathit A_{CP}$( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ )

$-0.00154 \pm0.00029$

▸	${{\boldsymbol D}^{0}}$ TESTS OF LOCAL $\boldsymbol CP$-VIOLATION ($\boldsymbol CPV$)

▸	$\boldsymbol CP$ VIOLATING ASYMMETRIES OF $\boldsymbol P$-ODD ($\boldsymbol T$-ODD) MOMENTS

${{\boldsymbol D}^{0}}$ $\boldsymbol CPT$-VIOLATING DECAY-RATE ASYMMETRIES

$\mathit A_{\mathit CPT}({{\mathit K}^{\mp}}{{\mathit \pi}^{\pm}}$) in ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ , ${{\overline{\mathit D}}^{0}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$

$0.008 \pm0.008$

▸	*${{\boldsymbol D}^{0}}$ $\rightarrow$ ${{\boldsymbol K}^{}{(892)}^{-}}{{\boldsymbol \ell}^{+}}{{\boldsymbol \nu}_{{{{\boldsymbol \ell}}}}}$ FORM FACTORS**

▸	${{\boldsymbol D}^{0}}$ $\rightarrow$ ${{\boldsymbol K}^{-}}$ / ${{\boldsymbol \pi}^{-}}{{\boldsymbol \ell}^{+}}{{\boldsymbol \nu}_{{{{\boldsymbol \ell}}}}}$ FORM FACTORS

Amplitude analyses

${{\mathit D}}$ $\rightarrow$ ${{\mathit K}}{{\mathit \pi}}{{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit D}}$ $\rightarrow$ ${{\mathit K}}{{\mathit K}}{{\mathit \pi}}{{\mathit \pi}}$ partial wave analyses

Decay Modes ▸ Expand all decays

Most decay modes (other than the semileptonic modes) that involve a neutral ${{\mathit K}}$ meson are now given as ${{\mathit K}_S^0}$ modes, not as ${{\overline{\mathit K}}^{0}}$ modes. Nearly always it is a ${{\mathit K}_S^0}$ that is measured, and interference between Cabibbo-allowed and doubly Cabibbo-suppressed modes can invalidate the assumption that 2$~\Gamma ({{\mathit K}_S^0}$ ) = $\Gamma ({{\overline{\mathit K}}^{0}}$).

▸	Topological modes

▸	Inclusive modes

▸	Semileptonic modes

▸	Hadronic modes with one ${{\overline{\mathit K}}}$

▸	Fractions of some of the following modes with resonances have already appeared above as submodes of particular charged-particle modes.These nine modes below are all corrected for unseen decays of the resonances.

▸	Hadronic modes with three ${{\mathit K}}$'s

▸	Pionic modes

▸	Hadronic modes with a ${{\mathit K}}{{\overline{\mathit K}}}$ pair

▸	Other ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit X}}$ modes. They include all decay modes of the ${{\mathit \phi}}$, ${{\mathit \eta}}$, and ${{\mathit \omega}}$.

▸	Radiative modes

▸	Doubly Cabibbo suppressed ($\mathit DC$) modes or $\Delta \mathit C$ = 2 forbidden via mixing ($\mathit C2M$) modes

▸	$\Delta \mathit C$ = 1 weak neutral current ($\mathit C1$) modes, Lepton Family number ($\mathit LF$) violating modes, Lepton ($\mathit L$) or Baryon ($\mathit B$) number violating modes

$\Gamma_{322}$

Unaccounted decay modes

$(36.9\pm{1.2})\%$

S=1.1

constrained fit information