Longitudinal structure function FL at small x extracted from the Berger-Block-Tan parametrization of F2
L. P. Kaptari+*, A. V. Kotikov+*, N. Yu. Chernikova×, P. Zhang°
+Institute of Modern Physics, 730000 Lanzhou, China
*Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
×Sunday school, 141980 Dubna, Russia
°University of Chinese Academy of Sciences, 100049 Beijing, China
Abstract
The longitudinal structure function FL(x,Q2) is extracted
at low values of the Bjorken variable x from
the Berger-Block-Tan parametrization of F2(x,Q2).
The obtained FL(x,Q2) does not violate the high-energy asymptotic
Froissart boundary and is in a reasonable good agreement with the
available experimental data.