An experimental limit on $\iota\to \gamma\gamma$ and the interpretation of the $\iota$ as a glueball

Aihara, H.; Alston-Garnjost, M.; Avery, R.E.; Barbaro-Galtieri, A.; Barker, A.R.; Barnes, A.V.; Barnett, B.A.; Bauer, Daniel A.; Bengtsson, H.U.; Bintinger, D.L.

doi:10.1103/PhysRevLett.57.51

An experimental limit on $\iota\to \gamma\gamma$ and the interpretation of the $\iota$ as a glueball

TPC/Two Gamma

Collaboration

Mar, 1986

15 pages

Published in:

Phys.Rev.Lett. 57 (1986) 51

DOI:

10.1103/PhysRevLett.57.51

Report number:

UCSB-HEP-86-2

Experiments:

SLAC-PEP-004

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Abstract: (APS)

By observing the reaction γγ→Ks0K±π∓, the TPC/Two-Gamma experiment at the SLAC e+e− storage ring PEP has obtained a 95%-confidence-level limit of Γι→γγB(ι→KK¯π)<1.6 keV for the ι(1450) meson. If, as is likely, the ι decays predominantly into KK¯π, the resulting Γι→γγ limit appears to conflict with previous assignments of an observed ργ decay to ι and also with many analyses of η-η’-ι mixing. The contrast of this small γγ width with the large rate for J/ψ→γι is evidence that the ι is a glueball with little admixture of qq¯ states.

ELECTRON POSITRON: INELASTIC SCATTERING
INELASTIC SCATTERING: ELECTRON POSITRON
ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
EXCHANGE: TWO-PHOTON
TWO-PHOTON: EXCHANGE
PHOTON PHOTON: INTERACTION
INTERACTION: PHOTON PHOTON
MASS SPECTRUM: (K0(S) K PI)
(K0(S) K PI): MASS SPECTRUM

References(23)

Figures(0)

Is the E(1420) in J/psi Decay a Gluonic Bound State?

K. Ishikawa
(
- DESY
)

- Phys.Rev.Lett. 46 (1981) 978
•
DOI:
- 10.1103/PhysRevLett.46.978

Have We Seen Our First Glueball?

Michael S. Chanowitz
(
- LBL, Berkeley
)

- Phys.Rev.Lett. 46 (1981) 981
•
DOI:
- 10.1103/PhysRevLett.46.981

Observation of the Radiative Transition psi ---> gamma E(1420)

D.L. Scharre
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
G. Trilling
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
G.S. Abrams
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
M.S. Alam
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
C.A. Blocker
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)

et al.

- Phys.Lett.B 97 (1980) 329-332
•
DOI:
- 10.1016/0370-2693(80)90612-7

Observation of a Pseudoscalar State at 1440-MeV in J/psi Radiative Decays

et al.

- Phys.Rev.Lett. 49 (1982) 259,
- Phys.Rev.Lett. 50 (1983) 219 (erratum)
•
DOI:
- 10.1103/PhysRevLett.50.219

MEASUREMENT OF IONIZATION LOSS IN THE RELATIVISTIC RISE REGION WITH THE TIME PROJECTION CHAMBER

TPC/Two Gamma

Collaboration

•

B. Gabioud
(
- UC, Riverside and
- Johns Hopkins U. and
- Tokyo U.
)

et al.

- IEEE Trans.Nucl.Sci. 30 (1983) 63-66,
- Preprint - GABIOUD, B. (REC.NOV.82) 4p,
- IEEE Trans. Nucl. Sci. 30 ( 1983) 63-66 and Preprint - GABIOUD, B. (REC.NOV.82) 4p
•
DOI:
- 10.1109/TNS.1983.4332220

A MUON DETECTION SYSTEM FOR THE PEP-4 FACILITY. (TALK)

TPC/Two Gamma

Collaboration

•

J.A. Bakken

et al.

- IEEE Trans.Nucl.Sci. 30 (1983) 67-70,
- IEEE Trans. Nucl. Sci. 30 ( 1983) 67-70
•
DOI:
- 10.1109/TNS.1983.4332221

SPATIAL RESOLUTION OF THE PEP-4 TIME PROJECTION CHAMBER

TPC/Two Gamma

Collaboration

•

R.J. Madaras
(
- Yale U.
)

et al.

- IEEE Trans.Nucl.Sci. 30 (1983) 76-81,
- Preprint - MADARAS, R. J. (REC.NOV.82) 6p,
- IEEE Trans. Nucl. Sci. 30 ( 1983) 76-81 and Preprint - MADARAS, R.J. (REC.NOV.82) 6p
•
DOI:
- 10.1109/TNS.1983.4332223

Geiger Mode Calorimeter for PEP-4

TPC/Two Gamma

Collaboration

•

H. Aihara
(
- Tokyo U.
)

et al.

- IEEE Trans.Nucl.Sci. 30 (1983) 117-121
•
DOI:
- 10.1109/TNS.1983.4332231

- IEEE Trans.Nucl.Sci. 30 172

Leptonic Structure Functions of the Photon

TPC/Two Gamma

Collaboration

•

M.P. Cain
(
- UC, Davis
)

et al.

- Phys.Lett.B 147 (1984) 232-236
•
DOI:
- 10.1016/0370-2693(84)90626-9

$K^{*0}$ and $K^0_s$ meson production in $e^+e^-$ annihilations at 29-GeV

TPC/Two Gamma

Collaboration

•

H. Aihara

et al.

- Phys.Rev.Lett. 53 (1984) 2378
•
DOI:
- 10.1103/PhysRevLett.53.2378

RESONANCE PRODUCTION BY TWO PHOTON INTERACTIONS AT SPEAR

et al.

- Phys.Rev.D 27 (1983) 1031
•
DOI:
- 10.1103/PhysRevD.27.1031

Search for Two Photon Production of Resonances Decaying Into $K \bar{K}$ and $K \bar{K} \pi$

TASSO

Collaboration

•

M. Althoff
(
- Aachen, Tech. Hochsch.
)

et al.

- Z.Phys.C 29 (1985) 189,
- Hamburg Desy - DESY 85-093 (85,REC.AUG.) 15p,
- Z. Phys. C29 ( 1985) 189-196 and Hamburg Desy - DESY 85-093 (85,REC.AUG.) 15p
•
DOI:
- 10.1007/BF01550816