Nuclear effects and higher twists in F3 structure function
S.A. Kulagin1 - A.V. Sidorov2
1 Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia
2 Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
kulagin@ms2.inr.ac.ru
Received: 4 August 2000
Communicated by W. Weise
Abstract
We analyze the CCFR collaboration iron target data on the xF3structure function making particular emphasis on the extraction of the higher
twist contributions from the data.
Corrections for nuclear effects are applied in order to extract data on the structure
function of the isoscalar nucleon.
Our analysis confirms the observation made earlier, that the higher twist terms depend
strongly on the level to which QCD perturbation theory analysis is applied.
We discuss the impact of nuclear effects on the higher twist term as well as
on the QCD scale parameter
extracted from the fit
to data.
PACS
12.38.Bx Perturbative calculations - 13.85.Hd Inelastic scattering: many-particle final states - 21.60.-n Nuclear-structure models and methods - 24.85.+p Quarks, gluons, and QCD in nuclei and nuclear processes
Copyright Società Italiana di Fisica, Springer-Verlag 2000
