pdgLive

$X (1750)$ MASS

VALUE (MeV)

DOCUMENT ID

TECN

COMMENT

1753.8 \pm 2.7

OUR AVERAGE

1784

\pm 12

_{- 27}^{+ 0}

BES3

ψ (2 S)

\to

K^{+} K^{-} η

1753.5

\pm 1.5

\pm 2.3

FOCS

20 - 160

γ

p

\to

K^{+} K^{-} p

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

1726

\pm 22

TPS

γ

p

\to

K^{+} K^{-}

X

1760

\pm 20

OMEG

20

-

70

γ

p

\to

K \overset{―}{K}

X

1690

\pm 10

OMEG

25

-

70

γ

p

\to

K^{+} K^{-}

X

PR D101 032008

Partial wave analysis of

ψ (3686) \to K^{+} K^{-} η

PL B545 50

Observation of a 1750-MeV/

c^{2}

Enhancement in the Diffractive Photoproduction of

K^{+} K^{-}

PR D40 1

High Energy Photoproduction of

π^{+} π^{-} π^{0}

,

K^{+} K^{-}

, and

p \overset{―}{p}

States

ZPHY C27 233

Photoproduction of

Ξ

Mesons by Linearly Polarized Photons of Energy 20-40 GeV and Further Evidence for a Photoproduced High Mass (

K \overset{―}{K}

) Enhancement

PL 104B 231

Evidence for a High Mass Enhancement in

K^{+} K^{-}

Photoproduction

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