pdgLive

${{\mathit f}_{{J}}{(2220)}}$ WIDTH

VALUE (MeV)

CL%

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 23 {}^{+8}_{-7}}$

OUR AVERAGE

$19$ ${}^{+13}_{-11}$ $\pm12$

74

BES

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$20$ ${}^{+20}_{-15}$ $\pm17$

46

BES

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$

$20$ ${}^{+25}_{-16}$ $\pm14$

23

BES

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$

$15$ ${}^{+12}_{-9}$ $\pm9$

32

BES

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit p}}{{\overline{\mathit p}}}$

$60$ ${}^{+107}_{-57}$

LASS

11 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \Lambda}}$

$80$ $\pm30$

SPEC

40 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$

$26$ ${}^{+20}_{-16}$ $\pm17$

93

MRK3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$

$18$ ${}^{+23}_{-15}$ $\pm10$

23

MRK3

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$

• • We do not use the following data for averages, fits, limits, etc. • •

$8.6 \pm2.5$

SPEC

40 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ +m${{\mathit \pi}^{0}}$

$\text{<80}$

90

GAM2

38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}}{{\mathit \eta}}{{\mathit n}}$

¹	$\mathit J{}^{PC} = 2{}^{++}$. Systematic uncertainties not evaluated

References:

PAN 71 2129

Comparative Analysis of the Narrow Resonances

PRL 76 3502

Studies of ${{\mathit \xi}{(2230)}}$ in ${{\mathit J / \psi}}$ Radiative Decays

PL B215 199

Evidence for a $\mathit J{}^{PC} = 4++$ ${{\mathit K}}{{\overline{\mathit K}}}$ State at 2.2 ${\mathrm {GeV/}}\mathit c{}^{2}$ from ${{\mathit K}^{-}}{{\mathit p}}$ Interaction at 11 ${\mathrm {GeV/}}\mathit c$

NP B309 426

${{\mathit \theta}{(1700)}}$ and ${{\mathit \xi}{(2230)}}$ Resonances in the ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ Reaction at Momentum 40 ${\mathrm {GeV/}}\mathit c$

SJNP 45 255

2.22 GeV ${{\mathit \eta}}{{\mathit \eta}^{\,'}}$ Structure Observed in 38 and 100 ${\mathrm {GeV/}}\mathit c$ ${{\mathit \pi}^{-}}{{\mathit p}}$ Collisions

PRL 56 107

Observation of a Narrow ${{\mathit K}}{{\overline{\mathit K}}}$ State in ${{\mathit J / \psi}}$ Radiative Decays

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