Two-photon formation of the charmonium resonance chi(c2), has been studied
with the L3 detector at LEP. The chi(c2) is identified through its decay ch
i(c2) --> gamma J/psi, with a subsequent decay J/psi --> e(+)e(-) or J/psi
--> mu(+)mu(-). With an integrated luminosity of 140 pb(-1) at root s simil
ar or equal to 91 GeV and 52 pb(-1) at root s similar or equal to 183 GeV,
we measure the two-photon width of the chi(c2) to be Gamma(gamma gamma)(chi
(c2)) = 1.02 +/- 0.40 (stat.) +/- 0.15 (sys.) +/- 0.09(BR.) keV. (C) 1999 P
ublished by Elsevier Science B.V. All rights reserved.