Scientific article
Open access

f1(1285) formation in two-photon collisions at LEP

ContributorsL3 Collaboration
Published inPhysics letters. B, vol. 526, no. 3-4, p. 269-277
Publication date2002

The ηπ+π− final state in two-photon collisions is studied with the L3 detector at LEP, at centre-of-mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb−1. The f1(1285) meson is observed and the Q2 dependence of its production is compared to different form factor models. The γγ-coupling parameter rγγ is found to be 3.5±0.6(stat.)±0.5(sys.) keV. The branching fraction Γ(f1(1285)→a0π)/Γ(f1(1285)→ηππ) is also measured

Citation (ISO format)
L3 Collaboration. f<sub>1</sub>(1285) formation in two-photon collisions at LEP. In: Physics letters. B, 2002, vol. 526, n° 3-4, p. 269–277. doi: 10.1016/S0370-2693(01)01477-0
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Article (Published version)
ISSN of the journal0370-2693

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