Measurement of eta(c) production in untagged two photon collisions at LEP - INSPIRE

DataBETA

Measurement of eta(c) production in untagged two photon collisions at LEP

L3

Collaboration

Sep, 1993

17 pages

Published in:

Phys.Lett.B 318 (1993) 575-582

DOI:

10.1016/0370-2693(93)91558-5

PDG:

{{\mathit \eta}_{{{c}}}{(1S)}}

\rightarrow

{{\mathit \gamma}}{{\mathit \gamma}}

Report number:

CERN-PPE-93-173

Experiments:

CERN-LEP-L3

View in:

CERN Document Server

reference search28 citations

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Abstract: (Elsevier)

A study of twelve distinct decay channels of the η c has been performed with the L3 detector at LEP, for an integrated luminosity of 30 pb −1 . Summing all channels, 28 candidate events have been identified, with an estimated background of 11 events. The two-photon radiative width is evaluated to be Γ γγ ( η c ) = 8.0 ± 2.3 ± 2.4 keV.

electron positron: colliding beams
colliding beams: electron positron
exchange: two-photon
two-photon: exchange
photon photon: interaction
interaction: photon photon
channel cross section
L3
experimental results
CERN LEP Stor

References(9)

Figures(0)

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