First Measurement of the Total Width of the $\eta^\prime$ (958) Meson

Binnie, D.M.; Carr, J.; Debenham, N.C.; Jones, W.G.; Karami, H.; Keyne, J.; Sarma, N.H.

doi:10.1016/0370-2693(79)90908-0

First Measurement of the Total Width of the $\eta^\prime$ (958) Meson

D.M. Binnie
(
- Imperial Coll., London
)
,
J. Carr
(
- Imperial Coll., London
)
,
N.C. Debenham
(
- Imperial Coll., London
)
,
W.G. Jones
(
- Imperial Coll., London
)
,
H. Karami
(
- Imperial Coll., London
)

Mar, 1979

6 pages

Published in:

Phys.Lett.B 83 (1979) 141-146

Published: 1979

DOI:

10.1016/0370-2693(79)90908-0

PDG:

{{\mathit \eta}^{\,'}{(958)}}

WIDTH

Report number:

IC/HENP/79/2

reference search85 citations

Citations per year

Abstract: (Elsevier)

In a high-resolution missing mass experiment the total width of the η′ (958) meson has been measured to be 0.28 ± 0.10 MeV. Using the known γγ branching ratio the value Γ ( η ′ → γγ ) = 5.4 ± 2.1 keV is deduced. This is in good agreement with calculations based on fractional charge quarks and a pseudo-scalar mixing angle of 11°.

PI- P: INELASTIC SCATTERING
INELASTIC SCATTERING: PI- P
THRESHOLD: ETA(549)
THRESHOLD: ETA(958)
ETA(958): HADROPRODUCTION
ETA(958): RADIATIVE DECAY
ETA(958): DECAY WIDTH
mass spectrum: missing-mass
MEASUREMENT: TIME-OF-FLIGHT
COUNTERS AND DETECTORS: EXPERIMENTAL RESULTS

References(9)

Figures(0)

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First Measurement of the Total Width of the η′\eta^\primeη′ (958) Meson

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First Measurement of the Total Width of the $\eta^\prime$ (958) Meson