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STRANGE MESONS
($\mathit S$ = $\pm1$, $\mathit C$ = $\mathit B$ = 0)
${{\mathit K}^{+}}$ = ${\mathit {\mathit u}}$ ${\mathit {\overline{\mathit s}}}$, ${{\mathit K}^{0}}$ = ${\mathit {\mathit d}}$ ${\mathit {\overline{\mathit s}}}$, ${{\overline{\mathit K}}^{0}}$ = ${\mathit {\overline{\mathit d}}}$ ${\mathit {\mathit s}}$, ${{\mathit K}^{-}}$ = ${\mathit {\overline{\mathit u}}}$ ${\mathit {\mathit s}}$, similarly for ${{\mathit K}^{*}}$'s

INSPIRE JSON PDGID:

**${{\mathit K}^{*}{(892)}}$**

$I(J^P)$ = $1/2(1^{-})$

See related review:

${{\mathit K}^{*}{(892)}}$ Masses and Mass Differences

Expand/Collapse All

${{\mathit K}^{*}{(892)}}$ T-Matrix Pole $\sqrt {s }$

(890+-14) - i (26+-6) MeV

▸ ${{\mathit K}^{*}{(892)}}$ MASS

${\mathit m}_{{{\mathit K}^{*}{(892)}^{0}}}-{\mathit m}_{{{\mathit K}^{*}{(892)}^{\pm}}}$

$6.7$ $\pm1.2$ MeV

${{\mathit K}^{*}{(892)}}$ RANGE PARAMETER

$3.0$ $\pm0.5$ GeV${}^{-1}$ (S = 1.2)

▸ ${{\mathit K}^{*}{(892)}}$ WIDTH

${{\mathit K}^{*}{(892)}}$ DECAY MODES

Mode

Fraction ($\Gamma_i$ / $\Gamma$)

Scale Factor/
Conf. Level

P(MeV/c)

${{\mathit K}}{{\mathit \pi}}$

(${{\mathit K}}{{\mathit \pi}}$ )${}^{+-}$

($99.902$ $\pm0.009$ ) $\%$

(${{\mathit K}}{{\mathit \pi}}$ )${}^{0}$

($99.754$ $\pm0.021$ ) $\%$

${{\mathit K}^{0}}{{\mathit \gamma}}$

($2.46$ $\pm0.21$) $ \times 10^{-3}$

${{\mathit K}^{\pm}}{{\mathit \gamma}}$

($9.8$ $\pm0.9$) $ \times 10^{-4}$

${{\mathit K}}{{\mathit \pi}}{{\mathit \pi}}$

$<7$ $\times 10^{-4}$

Constrained Fit information

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