CHARMED, STRANGE MESONS
($\mathit C$ = $\pm1$, $\mathit S$ = $\pm1$)
(including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states)
${{\mathit D}_{{{s}}}^{+}}$ = ${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit s}}}$, ${{\mathit D}_{{{s}}}^{-}}$ = ${\mathit {\overline{\mathit c}}}$ ${\mathit {\mathit s}}$, similarly for ${{\mathit D}_{{{s}}}^{*}}$'s
INSPIRE   JSON PDGID:
S034

${{\mathit D}_{{{s}}}^{\pm}}$

$I(J^P)$ = $0(0^{-})$ 
The angular distributions of the decays of the ${{\mathit \phi}}$ and ${{\overline{\mathit K}}^{*}{(892)}^{0}}$ in the ${{\mathit \phi}}{{\mathit \pi}^{+}}$ and ${{\mathit K}^{+}}{{\overline{\mathit K}}^{*}{(892)}^{0}}$ modes strongly indicate that the spin is zero. The parity given is that expected of a ${{\mathit c}}{{\overline{\mathit s}}}$ ground state.
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${{\mathit D}_{{{s}}}^{\pm}}$ MASS $1968.35$ $\pm0.07$ MeV 
 
${\mathit m}_{{{\mathit D}_{{{s}}}^{\pm}}}-{\mathit m}_{{{\mathit D}^{\pm}}}$ $98.69$ $\pm0.05$ MeV 
 
${{\mathit D}_{{{s}}}^{\pm}}$ MEAN LIFE ($5.012$ $\pm0.022$) $ \times 10^{-13}$ s (S = 1.3)
 
▸  ${{\mathit D}_{{{s}}}^{\pm}}$ Amplitude analyses
▸  ${{\mathit D}_{{{s}}}^{+}}−{{\mathit D}_{{{s}}}^{-}}$ $\mathit CP$-VIOLATING DECAY-RATE ASYMMETRIES
▸  ${{\mathit D}_{{{s}}}^{\pm}}{{\mathit \chi}^{2}}$ TESTS OF $\mathit CP$-VIOLATION ($\mathit CPV$)
▸  $\mathit CP$ VIOLATING ASYMMETRIES OF $\mathit P$-ODD ($\mathit T$-ODD) MOMENTS
▸  ${{\mathit D}_{{{s}}}^{+}}$ Semileptonic Form Factors and Decay Constants
Unless otherwise noted, the branching fractions for modes with a resonance in the final state include all the decay modes of the resonance. ${{\mathit D}_{{{s}}}^{-}}$ modes are charge conjugates of the modes below.
Mode  
Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
▸  Inclusive modes
▸  Leptonic and semileptonic modes
▸  Hadronic modes with a ${{\mathit K}}{{\overline{\mathit K}}}$ pair
▸  Hadronic modes without ${{\mathit K}}$'s
▸  Modes with one or three ${{\mathit K}}$'s
▸  Radiative decays
▸  Doubly Cabibbo-suppressed modes
▸  Baryon-antibaryon mode
▸  $\Delta \mathit C$ = 1 weak neutral current ($\mathit C1$) modes, Lepton family number ($\mathit LF$), or Lepton number ($\mathit L$) violating modes
[1] See the Particle Listings for the (complicated) definition of this quantity.
[2] This is the purely ${{\mathit e}^{+}}$ semileptonic branching fraction: the ${{\mathit e}^{+}}$ fraction from ${{\mathit \tau}^{+}}$ decays has been subtracted off. The sum of our (non-${{\mathit \tau}}$) ${{\mathit e}^{+}}$ exclusive fractions $-$ an ${{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}$ with an ${{\mathit \eta}}$, ${{\mathit \eta}^{\,'}}$, ${{\mathit \phi}}$, ${{\mathit K}^{0}}$, or ${{\mathit K}^{*0}}$ $-$ is $5.99$ $\pm0.31$ $\%$.
[3] This fraction includes ${{\mathit \eta}}$ from ${{\mathit \eta}^{\,'}}$ decays.
[4] The sum of our exclusive ${{\mathit \eta}^{\,'}}$ fractions $-$ ${{\mathit \eta}^{\,'}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}$, ${{\mathit \eta}^{\,'}}{{\mathit \mu}^{+}}{{\mathit \nu}_{{{\mu}}}}$, ${{\mathit \eta}^{\,'}}{{\mathit \pi}^{+}}$, ${{\mathit \eta}^{\,'}}{{\mathit \rho}^{+}}$, and ${{\mathit \eta}^{\,'}}{{\mathit K}^{+}}$ $-$ is $11.8$ $\pm1.6\%$.
[5] This branching fraction includes all the decay modes of the final-state resonance.
[6] A test for ${{\mathit u}{\overline{\mathit u}}}$ or ${{\mathit d}{\overline{\mathit d}}}$ content in the ${{\mathit D}_{{{s}}}^{+}}$. Neither Cabibbo-favored nor Cabibbo-suppressed decays can contribute, and ${{\mathit \omega}}−{{\mathit \phi}}$ mixing is an unlikely explanation for any fraction above about $2 \times 10^{-4}$.
[7] The branching fraction for this mode may differ from the sum of the submodes that contribute to it, due to interference effects. See the relevant papers.
[8] We decouple the ${{\mathit D}_{{{s}}}^{+}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}$ branching fraction obtained from mass projections (and used to get some of the other branching fractions) from the ${{\mathit D}_{{{s}}}^{+}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}$, ${{\mathit \phi}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ branching fraction obtained from the Dalitz-plot analysis of ${{\mathit D}_{{{s}}}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$. That is, the ratio of these two branching fractions is not exactly the ${{\mathit \phi}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ branching fraction 0.491.
[9] This is the average of a model-independent and a $\mathit K$-matrix parametrization of the ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{\mathit S}{\mathrm -wave}$ and is a sum over several ${{\mathit f}_{{{0}}}}$ mesons.
[10] This mode is not a useful test for a $\Delta \mathit C$=1 weak neutral current because both quarks must change flavor in this decay.
[11] This is $\mathit not$ a test for the $\Delta \mathit C$=1 weak neutral current, but leads to the ${{\mathit \pi}^{+}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ final state.
Constrained Fit information