ZhETF, Vol. 128,
p. 938 (November 2005)
(English translation - JETP,
Vol. 101, No. 5,
available online at www.springer.com
THE LONGITUDINAL STRUCTURE FUNCTION FL: PERTURBATIVE QCD AND kT-FACTORIZATION VERSUS EXPERIMENTAL DATA AT FIXED W
Kotikov A.V., Lipatov A.V., Zotov N.P.
Received: June 13, 2005
PACS: 13.60.Hb, 12.38.Bx
We use the results for the structure function FL for a gluon target with a nonzero transverse momentum squared at the order α s, obtained in our previous paper, for comparison with recent H1 experimental data for FL at fixed W values and with collinear GRV predictions in the leading-order and next-to-leading-order approximations.