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Studies of two-photon collisions at LEP2

✍ Scribed by Imre Pál

Book ID
111626839
Publisher
Springer-Verlag
Year
2004
Tongue
English
Weight
290 KB
Volume
33
Category
Article
ISSN
1434-6044

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ηc(2980) production in γγ interactions has been detected via its decays into K 0 s K ± π ∓ , K + K -K + K -and K + K -π + π -in the data taken with the DELPHI detector at LEP1 and LEP2 energies. The two-photon radiative width averaged over all observed decay channels is Γγγ = 13.9 ± 2.0 (stat.) ± 1.