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${{\mathit \eta}^{\,'}{(958)}}$ WIDTH INSPIRE search

M002W

VALUE (MeV)

EVTS

DOCUMENT ID

TECN

CHG

COMMENT

$\bf{ 0.188 \pm0.006}$

OUR FIT

$\bf{ 0.230 \pm0.021}$

OUR AVERAGE

$0.226$ $\pm0.017$ $\pm0.014$

2300

MMS

${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \eta}^{\,'}}$

$0.40$ $\pm0.22$

4800

SPEC

1.68 ${{\mathit p}}$ ${{\mathit d}}$ $\rightarrow$ ${}^{3}\mathrm {He}$ ${{\mathit \eta}^{\,'}}$

$0.28$ $\pm0.10$

1000

MMS

0

${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$ MM

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

$0.20$ $\pm0.04$

BES2

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

References:

PRL 105 122001

Determination of the Total Width of the ${{\mathit \eta}^{\,'}}$ Meson

PL B594 47

A Study of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}\mathit V({{\mathit \rho}},{{\mathit \phi}}$) Decays with the BESII Detector

PL B374 283

Observation of ${{\mathit \eta}^{\,'}{(958)}}$ and ${{\mathit \phi}{(1020)}}$ Meson Production very Close to Threshold in the ${{\mathit p}}$ ${{\mathit d}}$ $\rightarrow$ ${}^{3}\mathrm {He}$ ${{\mathit X}}$ Reaction

PL 83B 141

First Measurement of the Total Width of the ${{\mathit \eta}^{\,'}{(958)}}$ Meson